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    2011 

      5

     

     

     

     

     

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    UDC 

    10497 

           

     

        Study for the Independent Suspension System

      of an Off-road Vehicle Based on ADAMS

     

     

      430070

     

       

     

    2011 5   2011 6  

    2011 5

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      I

     

    ADAMS CAR 

    UA  

    ANSYS  

    ADAMS ADAMS

     

    ADAMS/CAR  sayers

    matlab  

     

     

     

     

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      II

     

     

    People pay more and more attention on the ride comfort of the off-road

    vehicles as they care about the ride comfort of cars. The suspension system which

    transfers all kinds of forces and torques from tires to vehicle body is the most

    important and direct factor that influents the vehicle’s ride comfort. The

    suspension system research includes two areas. One is called suspension system

    dynamics and the other is called suspension system kinematics and

    compliance.The area of suspension system dynamics researchs the force

    characteristics of spring elements and damping components for improving ride

    comfort. This paper is specially to study the dynamics characteristics of an

    off-road vehicle independent suspension system and some special conditions ’ 

    simulations including including driving the vehicle through vertical step, pothole

    and grade.

    This paper is based on multi-body dynamic theory software ADAMS/CAR and

    uses this software to build a rigid whole multi-body model which includes front

    and rear double wishbone independent suspension systems,parallel link

    steering,antilroll bar,seat system,bodyfour-wheel drive powertrain and UA tires.

    Considering the front and rear double wishbones’ low arms and the antiroll bar as

    flexible parts and using the ANSYS software flexing them ,then transforms the

    flexible parts into ADAMS and bulid a rigid- flexible whole multi-body model.

    This paper introduces the people’s reactions to vibration and evaluation

    method of ride comfort. This paper uses the ADAMS/CAR 

    s road profile

    generation tool which is based on sayers mathematical model to generate the road

     profiles,does ride comfort simulations for the rigid whole multi-body model and

    the rigid- flexible whole multi-body model,calculate results by the MATLAB

     program which is using for evaluating the ride comfort and compares the two

    modles’s ride comfort lastly.Let the two whole multi-body model experence pulse

    inputting simulations and compares the two modles’s ride comfort again. This

     paper proves the elastic action of the flexible whole multi-body model’s flexible

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      III

     parts’s to the ride comfort and the improvement of the modle’s precision according

    to the simulation results.

    This paper also does some special conditions’ simulations including including

    driving the vehicle through vertical step, pothole and grade aiming at off-road

    vehicle’s complex driving conditons.

    off-road vehicle, independent suspention system, the ride comfort,

    special condition simulation 

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      IV

     

     

    ............................................................................................................. 1 

    1.1 ...................................................................................... 1

    1.2 ................................................................................ 2

    .............................................................................. 2

    .................................................. 3

    .......................................................................................... 5

    .............................................................. 5

    .................................................................. 7

    1.3 .............................................................................. 8

     

    ............................................. 10 

    2.1 RCL ........................................................... 10

    2.2 .............................................................................................11

    2.3 ........................................................................................ 12

    2.4 ISO2631-1(1991).................................................................................... 12

    2.5 ISO2631-1(1997).................................................................................... 13

    2.6 GB/T4970-1996 .................. 15

    2.7 GB5902-86 ......................... 17

    2.8 ................................................................................ 17

    2.9 ........................................................................................ 19

    2.10 ............................................................................ 21

    2.11 ................................................................................................ 21

     

    ............................................................. 22 

    3.1 ADAMS/CAR  ............................................................... 22

    3.2 ................................................................................ 25

    3.3 ................................................................................ 27

    3.4 ................................................................................................ 29

    3.5 ............................................................................................ 30

    3.6 ................................................................................ 31

    3.7 ................................................................................ 32

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      V

    3.8 ............................................................................ 32

    3.9 ................................................................................................ 33

    3.10 ............................................................................ 36

    3.11 ................................................................................ 37

    3.12 ................................................................................................ 41

      ..................................................................................... 42 

    4.1 ADAMS/CAR RIDE .................................................................. 42

    4.2 ........................................................................................ 43

    4.3 .................................................................... 44

    ............................................................. 45

    ............................................................ 48

    4.4 ................................................................ 53

    4.5 ..................................................................................................... 58

     

    ............................................................................. 59 

    5.1 ........................................................................ 59

    5.2 ........................................................................ 63

    5.3 ................................................................................ 66

    5.4 .................................................................................................... 70

      ............................................................................................. 72 

    6.1 .................................................................................................... 72

    6.2 ............................................................................................................ 73 

    ................................................................................................................. 75 

    .......................................................................................................................... 78 

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    1

    off-road Vehicle

     

    ADAMS

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    2

    “” 4

    0.5 25Hz

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    3

    1935 1948 Janeway Janeway 1957 Dieckman  

    K   3

    1968 Pradko Lee (Absorbed Power)

    “”

    41976 Griffin

      5 (1986)

    1/3  

    1974

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    4

    IS02631  —  6

    1997  

    2631 1:1997( ) ISO E −  —   ——  5

     

    1976

    “”

    20 ISO2631

    1982

    “”

    1985 GB5902-86

    ” 1990  

    QC/T474-1999 GB/T4970-1996

     

    1997

    2000

    Cgv Cgv  

     

    IS02631 GB/T4970-1996

    31-36  

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    5

    Olley 2k    [34]

    Olley Criteria[38]

      30% 6.5% 

    1.2

     

    1.3Hz 6  

      

     

    ε  1

     

     β =0

     

    1

     

    1

     

    20 70

    80

    Chac

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    6

    42 15 Bradford  Hegazy

    94 15  

    20 80

    1993   18

    101998

    13 “”

     

    2000

    3

    18 ;2005

    76

    10

     

    80

    90

    22

     

    2006

    MSC.Nastran

    MSC.Adams

    27

     

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    7

    2007 ADAMS

    25 

    2008 ADAMS

    :

    21.5%  71.3% 10% 15% 20%

    30 

    Metealf    VanDensen Lins 30

    90 

     

    ISO/TC108/SC2N67

    17

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    8

    (

      17 

     

     1. ADAMS car  

    car  

     powertrain

     

    2.

    ISO2631-1  

     

    3. ANSYS  

    ADAMS ADAMS

     

    4. GB/T4970-1996

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    9

    MATLAB

    GB/T5902-86

     

    5

       

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    10

    adams/car 

     

     

    ISO2631   GB/T4970-1996

     

     

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    11

      RCL    

    20  

    10  

     

    0

    1( ) ( )

    av AP Lim F t V t dt T 

    = ∫  

    ( )F t    V(t) 

     

    2

    0

    ( ) N 

    av i

    i

     AP K Airms=

    = ∑  

    ( )2

     Airms     iK   

     

    :()

    ;

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    12

     

     

    1976 Griffin

    1986

    Griffin  

    ISO2631/CD 1991

     

    1 12

    3 3

    3 12

     

    2

     

     

     

    ISO2631-1(1991)

    3  

    (1)

     

    (2)

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    13

     

    (3) 

    1-80Hz

    1/3

     

    (1)

     

    (2) IHz

     

    (3)  

    (4)  

     

     

    ISO2631  

    2631 1:1997( ) ISO E −   0.5 80Hz

    3   3

    3

    3

    3 12  

    4 12.5 Hz   s z  

    4 8Hz ; 8

    12.5Hz

    s x  

      s y   0.5 2Hz 3Hz

     

    2631 1:1997( ) ISO E −   0.5~80 Hz

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    14

    12 

     

    2631 1:1997( ) ISO E −   9 14

    ( )w

    a t      wa  

     

    1.  

     

    (1) ( )a t    ( )W f     

    ( )wa t     

    21/ 2

    0

    1[ ]

    w wa a dt  T 

    = ∫   (2-3)

    T 120s 

    2-4 2-7 ( )W f   

     f  Hz

    0.5 (0.5 2)

    / 4 (2 4)( )

    1 (4 12.5)

    12.5 / (12.5 80)

     f 

     f f W f 

     f 

     f f 

    <

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    15

    (3)   s x     s y     s z  

     

    2 2 2 1/ 2[(1.4 ) (1.4 ) ]w xw yw zwa a a a= + +   (2-9)

    (4)   aw L   2-10   aw L     wa

     

    020lg( / )

    aw w L a a=   (2-10)

    0

    a   6 20

    10 /a m s−=  

    2-2     aw L     wa  

      2-2

      aw L     wa    

      wa2( )m s−     aw L   dB    

    2.0 126  

    2.  

    9 2631 1:1997( ) ISO E −   4

     

    4 1/ 4 1.75

    0[ ( ) ] /

    wVDV a t dt ms−= ∫   (2-11)

     

    1. 

    2631 1:1997 ISO   −   GB/T4970-1996

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    16

      s x     s y  

    s z     s z     k w  

    4~12.5Hz 4 8Hz ;

    8 12.5Hz

      s x     s y   0.5 2Hz 3Hz

     

    2. 

      xwa     ywa     zwa  

    0wa  

     

      wa  

     

    (1) 0wa  

    ( )aG f    ( )a t   

      wa    

    902 1/ 2

    0.9[ ( ) ( ) ]

    w aa W f G f df  = ∫   (2-12)

    ( )W f     

     

    0.5 (0.5 2)

    ( ) 1 (4 8)

    8 / (8 )

    ci ci

     N ci ci

    ci ci

     f f 

    W f f 

     f f 

    ⎧   < <

    ⎪⎪= <

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    2 2 2 1/ 2

    0 [(1.4 ) (1.4 ) ]w xw yw zwa a a a= + +   (2-15)

      xwa   X 2/m s     ywa   Y

    2/m s     zwa   Z

    2/m s    

     

    GB5902-86

    max Z 

    v

     

    max Z 

    v

    max Z v−

     

    max Z v−

      max Z v−

    2-16

    max Z 

     8

    max max

    1

    1

    8 j

     j

     Z Z =

    =   ∑

      (2-16)

    max Z 

    2/m s    

    max j Z 

     j 2/m s  

     

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    18

    U    { }1 2, , , mU u u u=   L  

     A   { }1 2, , , m A a a a=   L  

    V    { }1 2, , , nV v v v=   L  

     B   { }1 2, , , n B b b b=   L  

     R

    11 12 1

    21 22 2

    1 2

    n

    n

    m m mn

    r r r 

    r r r  R

    r r r 

    ⎡ ⎤⎢ ⎥⎢ ⎥=⎢ ⎥⎢ ⎥⎢ ⎥⎣ ⎦

    L

    L

    M M M M

    L

      (2-17) 

    1( ) ( 1,2, , )

    m

     j i iji

    b a r j n=

    = ∨ ∧ =   L   (2-18) 

      ∨   ∧

    1( ) ( 1,2, , )

    m

     j i iji

    b a r j n=

    = ∨ =   L   (2-19)

    1

    ( 1,2, , )m

     j i ij

    i

    b a r j n=

    = ∧ =∑   L   (2-20) 

    1

    ( 1,2, , )m

     j i ij

    i

    b a r j n

    =

    = =∑   L   (2-21) 

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    19

    U  V 

     R  B

     B

     

    GB/T4970-1996

    0.5 (1 4)

    ( ) 1 (4 8)

    8 / (8 80)

    ci ci

     N ci ci

    ci ci

     f f 

    W f f 

     f f 

    ⎧   < ≤⎪⎪

    = < ≤⎨⎪ < ≤⎪⎩

      (2-12)  

      f    maxa   1

    max( )w N cia W f aμ −=   μ 

    μ 

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    20

    1

    1

    1

    ( ) ( , )

    m

     j ij m j

    wi jm j

    ij

     j

    v n A a v p i j

    n

    =

    =

    =

    = =∑ ∑∑

      (2-23)  

    ( )wi A a   i   wia  

    ijn   i  j

     jv    j 1

    1

     j

     jv

    m

    −=

    − 

    m

    5 5m =    

    1

    m

    ij

     j

    n=

    ∑    

    ,

    1

    ( , ) /m

    i j ij

     j

     p i j n n=

    =   ∑    

     

    min

    2 2

    ln

    2

    lnln

    (ln( / ) 0.5 )1( ) exp[ ] ( )22

    w

    wiu a A a v u du

    uμ σ 

    σ π σ 

    ∞   − += ∫   (2-24)

     

    wa    2

    ln ln(1 )σ δ = +   δ  δ  0.1~0.5 

    ( )v u    

    min

    min max

    max

    ( ) 0

    ( ) ln( ) ,

    ( ) 1,

    v u u u

    v u a u b u u u

    v u u u

    =

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    21

     

    ISO2631

     

     ISO2631-1(1997)

    ADAMS TABLE EXCEL

    Matlab Matlab

     

    GB5902-86

     

     

    ISO2631 GB/T4970-1996

     

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    22

    ADAMS/CAR 

    ADAMS/CAR 

    ANSYS  

     

    MSC.ADAMS

      MDIMechanical DynamicsInc2002   MSC

    ADAMS  

    MSC.ADAMS/Solve

    MSC.ADAMS/View  

    ADAMS/Solver  ADAMS/View

      ADAMS/View  

    MSC.ADAMS

    “ ”

    MSC.ADAMS/Aircraft MSC.ADAMS/Car  MSC.ADAMS/Engine  

    ADAMS

     

    ADAMS

    17 

    MSC.ADAMS/Car 

    ADAMS/CAR  MDI

    ADAMS/Car  ADAMS/Tire

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    23

    ADAMS/Slove () ADAMS/PostProcessor ()

    ADAMS/CAR 

    ADAMS/SOVER 

    ADAMS/PostProcessor ADAMS/CAR 

     

    ADAMS/CAR 

     

     

    (1)

    Topological Structure

    General Part 

    (2)

    HardPoint

    (3)

    3 x y z   x I      y I      z I   

    3 3  

    (4) Geometry

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    24

    (5) Constrain

     

    (6) Actuators Parameters variable

     

    (7) Communicator 

     

    (8) Subsystem 

    (9) (Subsystem)

    (Suspension Test Rig) Full Vehicle Test Rig

    Aride Four Post Test Rig (Suspension

    Assembly)Full Vehicle Assembly 

     

    1. 

    2.

     Model display update at every iteration=  

    ADAMS  

     

    3.

     

    4. 

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    25

     

        ADAMS/CAR double-wishbone

    X Y Z

    3-1  

    3-1  

    V

    [34]-[35]

      ADAMS

    3-2  

    3-3 235.9N/mm, 3-4

    3-5  

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    3-2  

    3-3  

    3-4  

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    27

     

    3-5  

     

    mtl(r)_tierod_to_body

    3-6 439.5N/mm 3-7

    3-8  

    3-9  

     

    3-6

     

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    28

     

    3-7  

    3-8  

    3-9  

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    29

     

     

    ADAMS UA SWIFT

    FTire Fiala MF-tire Pacejka

    Fiala UA

    Fiala

    UA

    Fiala

    UA UA

    3-10 3-1  

    3-10  

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    30

     

     parallel_link_steering

    ( recirculating ball steering gear )

    ( sector ) ( rack )

    ( ball screw )(input shaft)

    1

     

    adams/car  parallel_link_steering

    3-11  

       

    UNLOADWED-RADIUS()mm 470

    WIDTH mm  318

     ASPECT-RATIOmm  0.8

    VERTICAL-STIFFNESSN/m  350000

    VERTICAL-DAMPING () Ns/m  50

    ROLLING-RESISTANGE  0.003

    CSLIP N/m  780000

    CALPHA N/rad  57000

    CGAMMA N/rad  3000

    UMIN   0.7

    UMAX   0.95

    REL-LEN-LON   0.6

    REL-LEN-LAT   0.5

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    31

     

    3-11  

     

     

    ADAMS  brake_system_4wdisk 

    suspension_upright ( caliper )

    ( suspension upright )( rotor )

    rotor_to_wheel

    ( point_torque actuators )

     

     brake_system_4wdisk 

    /

    / /

    3-12  

    3-12  

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    32

     

    adams/car 

    antiroll_simple

    3-13 3-14  

    3-13   3-14  

     

    adams/car 

     

    65Kg

    1

    requests

    3-15  

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    33

     

    3-15  

     

    T0 T0 Tf 

    Tr 

    Tfl   Tfr    Trl   Trr 

      3-16  

    3-16

     

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    34

     

    0 M     

     

    1 2 0

    1

    2 M M M = =   3-1 

    0

     M   

    1 M   

     2

     M   

     0

    12

    r  M M  M   −

    =  (3-2)

    02

    2

    r  M M  M   +

    =  (3-3)

      r  M   

    :1 f i     mmT   

    0i     mf T      mr T   

    0

    1

    ( ) f 

     f mm

     f 

    iT T T 

    i += −

      ( 3-4 )

    0

    1

    1( )

    r mm

     f 

    T T T i +

    = +

      ( 3-5 )

      mmT  --- N m    

     

    00.5 ( ) fl f mf T i T T  = ⋅ ⋅ −   ( 3-6 )

    00.5 ( ) fr f mf T i T T  = ⋅ ⋅ +   ( 3-7 )

    00.5 ( )rl r mr  T i T T  = ⋅ ⋅ −   ( 3-8 )

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      00.5 ( )rr r mr  T i T T  = ⋅ ⋅ +   ( 3-9 )

      flT      fr T  --- N m    

    rlT      rr T  --- N m    

    mf T      mr T  ---  N m    

    adams/car  powertrain

     powertrain  

    3-17

    3-2  

    3-17  

       

    cil_diff_tripot_rear

     

    gel(r)_diff_output_rear  

     jol(r)_rev_diff_output_rear

    ges_powertrain  

    cil(r)_tire_force_rear

     

    halfshaft_omega_rear_left  

    halfshaft_omega_rear_right  

    transmission_omega_rear_front  

    transmission_omega_rear_rear  

    differential_torque_divider  

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    36

       

    differential_torque_rear  

    gfl(r)_output_torque_rear  

    col(r)_output_torque_rear

     

     

    adams/car 

    FOUR_POST

    3-18  

     ADAMS/Car 

     

    3-18  

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    37

     ADAMS/Car 

    UA  

     

     

    ANSYS

    (MNF) ADAMS ANSYS

    ADAMS/CAR 

     

    ADAMS ADAMS/Flex ADAMS/Flex ANSYS  

    ADAMS/Flex

    ANSYS  

    ADAMS/Flex

    ADAMS  

    ANSYS  

    ADAMS

    (1)

     

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    (2) ADAMS

    ADAMS/Flex

     

    (3) ADAMS/Flex

    Craig-Bampton

    ADAMS/Flex Craig-Bampton

    Craig-Bampton Craig-Bampton

     

    (4)

    ADAMS

    ADAMS

    ADAMS

    [15] 

    ANSYS  

    solid45  

    mass21

    20mm 5mm

    1900 2100

    3-19 3-20 3-3  

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    3-19   3-20  

    3-3  

    E(pa)  ρ (kg/mm3) μ  

    2.1E+011 7.8E-006 0.3

    ANSYS

    ANSYS ADAMS

    ADAMS/Flex

    6 10

    3-4 10 3-5

    10  

    3-4  

      1 2 3 4 5 6 7 8 9 10

    /Hz 372.3 598.5 985.1 1895.6 2157.7 2876.5 3358.7 3426.8 3489.3 3614.9

     

    3-5  

      1 2 3 4 5 6 7 8 9 10

    /Hz 395.3 612.5 1120.1 2045.7 2478.2 3045.9 3421.8 3514.8 3542.4 3645.5

     

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    40

    Adams/FlexMNF ADAMS/car 

    MPC

    MPC

     

    ,

    ,,

    3-21

    3-6  

    3-21  

    3-6  

      1 2 3 4 5 6 7 8 9 10

    /Hz 80.5 130.4 157.6 162.3 264.1 457.5 501.9 554.4 642.1 751.5

     

     

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    (1) adams/car 

     

    (2) adams/car   

     

    (3)

    ansys ANSYS

    ADAMS ADAMS/Flex (MNF

    ) adams/car  

     

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    42

    adams/car 

    adams/car RIDE

     

    Ride ADAMS2003 ADAMS/Car 

    MSC

    Functional Digital Vehicle 17

    ADAMS/Car Ride

     building testing  post-processing

     NVH  Noise

    Vibration Harshness

    25 28 

    ADAMS/Car Ride ADAMS/Car 

    ADAMS/Vibration

    RPCIII RPCIII MTS

    Remote Parameter Control 21 

    ADAMS/Car Ride ADAMS/Vibration  

    ADAMS/Vibration ADAMS/Car Ride

    ADAMS/Car Ride

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    43

    PSD power-spectral-density

    PSD ADAMS/Vibration

     

    ADAMS/Car  RIDE

    Road-Profile Generation ADAMS/Car Ride

    Sayers

     

    n 4-1

     

    2 4( )

    (2 ) (2 )

    s ad e

    G GG n G

    n nπ π = + +   (4-1)

     

    eG    sG    

    aG    

    Road-Profile Generation 4 1  

    4-1 Road-Profile Generation  

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    44

     

      eG     sG     aG  

    Sayers  

    4-1  

    eG   sG     aG  

     

     

     

    36( 10 )

    m

    cycle

    −×   6( 10 )m

    cycle

    −×  61( 10 )

    m cycle

    −××

      0 6 0

      0 12 0.17

      0.003 20 0.20

      0 1 0

      0.1 20 0.25

      0.1 35 0.3

     

    GB/T4970-1996

    GB7031 B GB7031

    C

    ADAMS 5

    200Hz

    Hamming 1000 8

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    GB/T4970-1996

    40km/h50km/h60km/h70km/h80km/h  

    60km/h 

    60km/h

    adams

    FFT

     

    4-2  60km/h  

    4-3  60km/h  

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    4-4  60km/h  

    4-5  60km/h  

    4-6  60km/h  

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    4-7 60km/h  

    4-8  60km/h  

    4-9  60km/h  

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    48

     

    4-10 60km/h  

    adams table

    Matlab

     xwa =0.12092/m s     ywa =0.0716

    2/m s     zwa   = 0.19242/m s     va =0.2752

    2/m s  

      xwa =0.11292/m s     ywa =0.0720

    2/m s     zwa   = 0.15982/m s  

    va =0.24642/m s   4-2

    GB/T4970-1996

    30km/h40km/h50km/h60km/h

    50km/h 

    50km/h

     

    4-11  50km/h  

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    4-12  50km/h  

    4-13 50km/h  

    4-14  50km/h  

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    50

     

    4-15  50km/h  

    4-16 50km/h  

    4-17  50km/h  

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    4-18  50km/h  

    4-19 50km/h  

    50km/h

     xwa =0.12092/m s     ywa =0.0716

    2/m s     zwa   = 0.19242/m s     va =0.2752

    2/m s  

      xwa =0.11292/m s     ywa =0.0720

    2/m s     zwa   = 0.15982/m s  

    va =0.2464 2/m s   4-2

     

    (1)  

    4-12 4-11

     

    4-3 4-4, 4-12 4-13 

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    4-2  

     

     

     

    2( )

     xwam s

    −⋅ 

    2( )

     ywa

    m s−⋅

     2( )

     zwam s

    −⋅ 

    2( )

    vam s

    −⋅ 

    40km/h 0.0788 0.0465 0.2061 0.2426

    50km/h 0.1176 0.0581 0.1492 0.2366

    60km/h 0.1209 0.0716 0.1924 0.2752

    70km/h 0.0759 0.0510 0.2265 0.2601

     

    80km/h 0.0827 0.0556 0.2846 0.3169

    40km/h 0.0948 0.0403 0.1889 0.2376

    50km/h 0.1098 0.0595 0.1387 0.2232

    60km/h 0.1129 0.0720 0.1598 0.2464

    70km/h 0.0811 0.0518 0.2006 0.2416

     

    80km/h 0.1257 0.0518 0.2388 0.3054

    30km/h 0.1312 0.0858 0.1959 0.2941

    40km/h 0.0940 0.0733 0.3106 0.3526

    50km/h 0.1426 0.0719 0.3304 0.3989

     

    60km/h 0.1804 0.0831 0.2945 0.4051

    30km/h 0.1099 0.1010 0.1847 0.2789

    40km/h 0.1092 0.0719 0.3065 0.3401

    50km/h 0.1257 0.0633 0.3079 0.3655

     60km/h 0.2014 0.0744 0.2253 0.3756

     

    (2) 

    4-5 4-14

    4-6 4-7,4-15 4-16

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    0.309

    0.5~2Hz

     

    (3)  

    4-8 4-17

    4-9 4-10,4-18 4-19

     

    (4) 4-2

     

    (5) 4-2 40~70km/h

    0.315

    80km/h 0.3169 0.315

    30km/h 0.315

     

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    54

    GB5902-86

    4-20  

    4-20  

    80mmB road_profile setup

    (table functions) 80mm

    1m 0.4m

    4-21 4-22  

    4-21   4-22  

    20km/h30krn/h40km/h50km/h60km/h  

    4-23 4-28

     

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    55

     

    4-23 10km/h  

    4-24 20km/h  

    4-25 30km/h  

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    56

     

    4-26 40km/h  

    4-27 50km/h  

    4-28 60km/h  

    max Z 

    4-3   4-3 max Z 

     

    km/h 10 20 30 40 50 60

    max Z 

    2/mm s   2793 3343 4476 4781 5418 6034

    max Z 

    2/mm s 2742 3061 3982 4695 5353 5487

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    57

    max Z 

    v 4-29  

    4-29 max Z 

    v  

     

    (1) [45]

    231.44 m/s   231.44~43.02 m/s  

    43.02 2/m s  

    6.034 2/m s   5.487 2/m s  

     

    (2) 4-23~4-28

     

    (3) 4-29

     

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    (1) adams/car 

     

    (2) GB/T4970-1996 [22]

    matlab

    max Z 

    v  

    (3)

     

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    59

     

    1

    10.8km/h 0.3m 0.3m 10m

    30m

      5-1  

    5-1  

      5-2~5-9  

    5-2~5-4 10.8km h  

     

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    60

    6.2km h

    4s

    5-5~5-8

    5-9  

    30m

     

    5-2  

    5-3  

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    61

     

    5-4  

    5-5  

    5-6  

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    62

     

    5-7  

    5-8  

    5-9  

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    63

    1 0.3m 0.3m

    10m 10.8km/h

    30m  5-10  

    5-11~5-18  

    5-11  

    5-10  

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    64

     

    5-12  

    5-13  

    5-14  

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    65

     

    5-15  

    5-16  

    5-17  

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    66

     

    5-18  

    5-11 10.8km h

    5-12 5-13

    5-14

    10 30m

    5-15

    5-16~5-18

     

    40%

    20m 1

    10.8m/h 10m

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    67

    DCF   5-19  

     ADAMS

      5-20~5-28  

    5-20  

    5-21  

    5-19  

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    68

     

    5-22  

    5-23  

    5-24  

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    69

     

    5-25  

    5-26  

    5-27  

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    70

     

    5-28  

    5-20

    11.75km/h 5-21

    5-22 5-23

    5-24 5-25

    30m 40%

    5-26

    5-27 5-28

    2

    o

    ,

    40%

     

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    71

    40%

     

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    72

     ADAMS/CAR

     ANSYS  

     ADAMS/CAR

     

    ANSYS ADAMS

    ADAMS

      

     

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    73

     

    1.

     

    2.  

    3.

     

    4.  ADAMS

    Matlab Matlab

    ADAMS ADAMS

     

    5.

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    74

     

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    75

    [1] 2000 

    [2] 1992 

    [3] 1998 

    [4]

    1993.3 

    [5] 1996 05

    [6] Thomas D.Gillespie 2006 

    [7] D.E.Newland,General Liner Theory of Vehicle Response to Random Road Roughness 

    [8] 1998 

    [9] 2000 

    [10] 1995 

    [11] GB7031-86 

    [12] Healey,A.J.,Nathman,E.,Smith,C.C.,An analytical and experimental study of automobile

    dynamics with random roadway inputs,Trans.Of the ASME,J.of Dynamics

    Systems,Measurement,and Control,December 1997

    [13] GB/T4970-1996 

    [14] GB/T5902-86 

    [15] 1997 

    [16] 2003 

    [17] 1991 

    [18] 2008.2

    [19] 2004.5

    [20]

    2006

    [21] 2002.9

    [22]

    2007

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    76

    [23] A Study on the Handling Performances of a Large-Sized Bus with the Change of Rear

    Suspension Geometry, SAE Paper 2002-01-3071

    [24] RX6400 SUV D].  2007

    [25] .[D].

    2007

    [26] . [J].20032 

    [27] Real Case of Vehicles Dynamics Simulation during an SUV Suspension Development ,

    SAE Paper 2005-01-4177

    [28] . ADAMS [D].

    2006

    [29] Development of a New Suspension, SAE Paper 2000-01-0092

    [30] .  [D]. 2007

    [31] .[D].

    2007

    [32] Innovation Component Management for the Air Suspension, SAE Paper 2005-01-1722

    [33] Improving the Ride & Handling Qualities of a Passenger Car Via Modification of its Rear

    Suspension Mechanism, SAE Paper 2000-02-1630

    [34] Investigation into Suspension Dynamic Compliance Characteristics Using Direct

    Measurement and Simulation, SAE Paper 2004-01-1065

    [35] Steering and Suspension Test and Analysis, SAE Paper 2000-01-1626

    [36] . K&C [D]. 2005

    [37] . ADAMS [D].

    2006

    [38] . [J].20011 

    [39] . [J].200511 

    [40] .[J].20003 

    [41] .8X8     [D].

    2005

    [42]

    .

    [D].

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    77

    2005

    [43] . [J].20005 

    [44] . RX6400 SUV [D]. 2007

    [45] . [D]. 2005

    [46] . ADAMS/Car   [D].

    2007

    [47] . . [D].

    2007

    [48] . [D].

    2007

    [49] .NJ2045   [D].

    2004

    [50] . ADAMS   [D].

    2001

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    78

     

    !

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