2013 SIMULIA Regional User Meeting

Abaqus

(FAR-23) (V-n Diagram)

CFX Abaqus

Abaqus

FAR-23

FAR-23[1]

(Margin of Safety)

CAE

CFX

Abaqus (Analytical Mapping)

Abaqus

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2013 SIMULIA Regional User Meeting

[2]

1

V-n Diagram

FAR-23 Utility Category n

+4 -2 (BHA-1)

V-n Dia gra m

2 Vc Vd Vs1 Va

[3] 2 EAS Equivalent

Airspeed K Knot

Knot

Vc

c cWV =kS

(1)

Utility Category kc=33 W/S 20 psf (1)

Vc 147.58 ft/s

Vd

d cV =1.25V (2)

(2) Vd 184.475 ft/s

1G- Vs1

s1Nmax

2mgV =SC

(3)

m 2200 lbs g 32.2 ft/s2

0.0765 lb/ft3 S 110.06012 ft2 CNmax 3 (3)

1G- Vs1= 74.89 ft/s

Va

+a s1 limV =V n (4)

2.5 (4)

Va=118.411 ft/s

1G- (Vs1i)

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2013 SIMULIA Regional User Meeting

s1iNmax

-2mgV =S(-C )

(5)

CNmax 3 (5) 1G- Vs1i = 74.89 ft/s

( )

-si s1i limV =V -n (6)

-limn = -2 (6) Vsi

=105.91 ft/s

Abaqus

Abaqus CFX

.CSV Abaqus Load Analytical

Field

3

Abaqus

1 4 5

2

5 6 3 (2.5G)

(-2.5G)

4

(MSTRN)

V-n Dia gr a m 2

+2.5 109.3

7 1 4

(MSTRN) 8 13 14

15

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2013 SIMULIA Regional User Meeting

1 2427.44

427.44 17.61% 0.5767

16

1

1

2

2317.3 317.3 13.7% 110.14

MSTRN 0.7676 16

45%

32%

3

2216.4 216.4 9.77% 211

MSTRN 0.7676 17

10% 1.419

4

2

2224.9 224.9 10.1%

203 0.9464

18 10% 0.9464

1

1. Special Federal Aviation Regulation No. 23,1967.

2. R. M. Jones, "Mechanics of composite materials", McGraw-Hill, New York,

1975.

3. M. Sadraey, Aircraft Performance Analysis,VDM Verlag Dr. Müller, 2009.

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2013 SIMULIA Regional User Meeting

1

(lbs) MSTRN

6 89.97 0.2426

4 16.73 0.0914

6 5.86 0.1073

6 106.37 0.5767

22 85.82 0.3571

22 63.57 0.2385

4 11.18 0.04279

4 4.51 0.005135

6 1.6 0.02957

20 41.83 0.3905

2000

100 2427.44 0.5767

2

(lbs) MSTRN

4 63.74 0.35

4 16.73 0.1093

4 4.15 0.154

4 75.87 0.7676

16 63.3 0.5052

16 46.89 0.3335

4 11.18 0.05959

4 4.51 0.006616

4 1.13 0.04531

14 29.8 0.5586

2000

74 2317.3 0.7676

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2013 SIMULIA Regional User Meeting

3

(lbs) MSTRN

2 37.506 0.7055

2 9.8455 0.2617

2 2.4444 0.3191

2 46.9059 1.419

12 48.2797 0.675

12 35.7632 0.5415

2 6.57739 0.1272

2 2.6555 0.01308

2 0.6658 0.07621

12 25.7905 0.6831

2000

50 2216.434 1.419

4

(lbs) MSTRN

2 37.506 0.7254

2 9.8455 0.2617

2 2.4444 0.3191

( ) 4 24.05 0.9464

( ) 2 31.3 0.4121

12 48.2797 0.6613

12 35.7632 0.5251

2 6.57739 0.1278

2 2.6555 0.01308

2 0.6658 0.07621

12 25.7905 0.6831

2000

54 2224.878 0.9464

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2013 SIMULIA Regional User Meeting

1

2 (V-n Diagram)

V-nDiagram

Abaqus

Abaqus Abaqus

Abaqus

-2.5

-2

-1.5

-1

-0.5

0

0.5

1

1.5

2

2.5

3

0 20 40 60 80 100 120

n

V [KEAS]

V-n Diagram positivemaneuvering speed

stall line (positive)

stall line(negative)

Lower-bound

Upper-bound

Dive-speed

1G-stall

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2013 SIMULIA Regional User Meeting

3

4

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2013 SIMULIA Regional User Meeting

5

6

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2013 SIMULIA Regional User Meeting

7

8 ( )

9 ( )

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2013 SIMULIA Regional User Meeting

10

11

12

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2013 SIMULIA Regional User Meeting

13

14 (Max. Stress 43.84 Ksi)

15 (Max. U 19.2 in)

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2013 SIMULIA Regional User Meeting

16 ( MSTRN=0.5767)

17 ( MSTRN=0.7676)

18 ( MSTRN=1.419)

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2013 SIMULIA Regional User Meeting

19 ( MSTRN=0.9464)

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