B.V.Ravindranath May -2017 Vol-14, No: 5 Er.M.Chinnaswamy. FIE Chairman Er.B.V.Ravindranath. MIE Honorary Secretary Exciting eld of Oscillations of Mechanical Systems on: 08-04-2017 ibrations has a parallel .in a self motivated person who works Vbecause he likes and he does not need supervisors or external excitation like promotion, bonus, recognition. Similarly vibrations in systems on itself and is not excited by external forces. Vibration in steam engine is self exited and stops if cross head or flywheel fixed. In an unbalanced rotor mounted on a shaft unbalanced forces exits even when rotor is not allowed to vibrate. In a self excited vibration the alternating force that sustain the motion is created or controlled by the motion itself. When the motion stops the alternating force disappear. In a forced vibration the sustaining alternating forces exits independently of the motion and persists even when the vibratory motion is stopped. Self exited vibration is -ve damping , which is proportional to velocity and in same direction as velocity , increase the amplitude and dynamically unstable. +ve damping proportional to velocity and opposite to velocity, diminishes amplitude and dynamically stable. Displacement from equilibrium position, produce a restoring force statically stable. If the forces takes system away from equilibrium position. Statically stable. The speaker took the examples of high-tension transmission lines, violin string , driving wheels of a locomotive, ship propeller shaft , propeller blades, hunting of stems engines generators, steam turbines, to explain the various aspects of vibrations. Dr.H.R.Srirangarajan Delivered a lecture on “Exciting field of Oscillations of Mechanical System” at The Institution of Engineers (India) Mysore Local Centre on 8th April 2017. Open cast mining & TATA Steel on: 11-04-2017 I n his brief lecture he informed how J N Tata ( born in 1839 & died in 1904in Germany) with his foresightedness and dream of modern India initiated action to start a steel plant. Tata Iron and Steel co.ltd registered in August 1907 and the construction started in the same year at kalmati, now known as Jamshedpur in Jharkhand. The palnt located near Jamshedpur because of the proximity of Iron ore deposits at Gouramsahani and Badampahar in Orissa state and also availability of coal in Jharia and Dhanbad in Bihar ( Jharkhand) , which in connected with rail link. The plant was started with the initial capacity of 1 Lakh tonper year and later expanded to 2million ton and now it produces 12 million tons per year. Tata steel later opened manganese and lime stone mines. Also underground coal mines opened in Jharia Dhanbad region of Jharkhand to cater coking and thermal coal requirements. Tata steel was a pioneer in introducing OPEN CAST MINING in India. In the middle of twentieth century. Normandy Iron ore mine was recognized as a model Mechanized Iron mine in the Asian continent. Labour relations in TATA Steel have been exemplary. TATA's care for the workers Welfare is unmatched. The last strike in Jamshedpur works in the decade of 1940 saw Gandhi Ji visiting Jamshedpur. He met the management & union leaders. He told them TATA IRON & STEEL is a national wealth. Nobody had a right to stop it even for an hour. Since then, there has been total Labour - Management harmony. The opencast Mines were all situated in Forest & tribal belt. Tata Steel took great care to ensure not only highly efficient Mines but also to provide all facilities like Housing, Hospitals, schools, Recreation, Parks, Play grounds. This was JN TATA's first dream, fulfilled by his sons SIR Appli cation Fee for Applicants from India & Nepal (Rs) For Direct enrolment ( Paying in single remittance) F I E Rs, 6450/ - For transfer ( those who paid Life compounding subscription existing grade) A M I E to F I E Rs, 4470/ - For transfer ( those who paid Life compounding subscription existing grade) M I E to F I E Rs, 3870/ - For Direct enrolment ( Paying in single remittance) M I E Rs, 4100/ - For transfer ( those who paid Life compounding subscription existing grade) A M I E to M I E Rs, 2150/ - For Direct enrolment ( Paying in single remittance) A M I E Rs, 3500/ - Er. Mohammad Fasihuddin.FIE ,Ex General Manager (ORE MINES & QUARIES), TATA STEEL, Jamshedpur delivered an Interesting talk on “Tata Steel & Open Cast Mining” at Mysore Local Centre on 11th April 2017 at S.P.Bhat Hall. Membership Fees with effect from 1 st April 2017 18 Health Human Resources Management Dr.Uday Dokras 19 Hand book of Sensor Networks Compact wireless & wired sensing systems Mohammad / Lyas & Imad Mahgoub 20 Electrical Technology H Cotton 21 Computer operating System B Prasannalakshmi 22 Non – Conventional Energy Resources B H Khan
Transcript
B.V.Ravindranath
May -2017Vol-14, No: 5
Er.M.Chinnaswamy. FIE
Chairman
Er.B.V.Ravindranath. MIEHonorary Secretary
Exciting eld of Oscillations of Mechanical Systems on: 08-04-2017ibrations has a parallel .in a self motivated person who works Vbecause he likes and he does not need supervisors or external
excitation like promotion, bonus, recognition.Similarly vibrations in systems on itself and is not excited by external forces.Vibration in steam engine is self exited and stops if cross head or flywheel fixed. In an unbalanced rotor mounted on a shaft unbalanced forces exits even when rotor is not allowed to vibrate.In a self excited vibration the alternating force that sustain the motion is created or controlled by the motion itself. When the motion stops the alternating force disappear.In a forced vibration the sustaining alternating forces exits independently of the motion and persists even when the vibratory motion is stopped.Self exited vibration is -ve damping , which is proportional to velocity and in same direction as velocity , increase the amplitude and dynamically unstable. +ve damping proportional to velocity and opposite to velocity, diminishes amplitude and dynamically stable. Displacement from equilibrium position, produce a restoring force statically stable. If the forces takes system away from equilibrium
position. Statically stable. The speaker took the examples of high-tension transmission lines, violin string , driving wheels of a locomotive, ship propeller shaft , propeller blades, hunting of stems engines generators, steam turbines, to explain the various aspects of vibrations.
Dr.H.R.Srirangarajan Delivered a lecture on “Exciting field of Oscillations of Mechanical System” at The Institution of Engineers (India) Mysore Local Centre on 8th April 2017.
Open cast mining & TATA Steel on: 11-04-2017In his brief lecture he informed how J N Tata
( born in 1839 & died in 1904in Germany) with his foresightedness and dream of modern India initiated action to start a steel plant. Tata Iron and Steel co.ltd registered in August 1907 and the construction started in the same year at kalmati, now known as Jamshedpur in Jharkhand. The palnt located near Jamshedpur because of the proximity of Iron ore deposits at Gouramsahani and Badampahar in Orissa state and also availability of coal in Jharia and Dhanbad in Bihar ( Jharkhand) , which in connected with rail link. The plant was started with the initial capacity of 1 Lakh tonper year and later expanded to 2million ton and now it produces 12 million tons per year. Tata steel later opened manganese and lime stone mines. Also
underground coal mines opened in Jharia Dhanbad region of Jharkhand to cater coking and thermal coal requirements. Tata steel was a pioneer in introducing OPEN CAST MINING in India. In the middle of twentieth century. Normandy Iron ore mine was recognized as a model Mechanized Iron mine in the Asian continent. Labour relations in TATA Steel have been exemplary. TATA's care for the workers Welfare is unmatched. The last strike in Jamshedpur works in the decade of 1940 saw Gandhi Ji visiting Jamshedpur. He met the management & union leaders. He told them TATA IRON & STEEL is a national wealth. Nobody had a right to stop it even for an hour. Since then, there has been total Labour - Management harmony. The opencast Mines were all
situated in Forest & tribal belt. Tata Steel took great care to ensure not only highly efficient Mines but also to provide all facilities like Housing, Hospitals, schools, Recreation, Parks, Play grounds. This was JN TATA's first dream, fulfilled by his sons SIR
Application Fee for Applicants from India & Nepal (Rs)
For Direct enrolment ( Paying in single remittance)
F I E
Rs, 6450/ -
For transfer ( those who paid Life compounding subscription existing grade)
A M I E to F I E
Rs, 4470/ -
For transfer ( those who paid Life compounding subscription existing grade)
M I E to F I E
Rs, 3870/ -
For Direct enrolment ( Paying in single remittance)
M I E
Rs, 4100/ -
For transfer ( those who paid Life compounding subscription existing grade)
A M I E to M I E
Rs, 2150/ -
For Direct enrolment ( Paying in single remittance)
A M I E
Rs, 3500/ -
Er. Mohammad Fasihuddin.FIE ,Ex General Manager (ORE MINES & QUARIES), TATA STEEL, Jamshedpur delivered an Interesting talk on “Tata Steel & Open Cast Mining” at Mysore Local Centre on 11th April 2017 at S.P.Bhat Hall.
Membership Fees with effect from 1st April 2017
18 Health Human Resources Management Dr.Uday Dokras
19 Hand book of Sensor Networks Compact wireless & wired sensing systems
Mohammad / Lyas & Imad Mahgoub
20 Electrical Technology H Cotton
21 Computer operating System
B Prasannalakshmi
22 Non – Conventional Energy Resources B H Khan
Materials in Automobiles : 19-04-2017Mr.S C Balawat, taking the example of a
truck, examined what are the major aggregates of an Automobile and what different parts constitute these aggregates are made of. Then, he classified the major parts into a family of parts- Sheet metal parts, Forgings, castings, bearings, springs and Fasteners. Then each of these category parts were discussed about what properties they should have, what are materials of each of them and how they are manufactured, with special emphasis on process like forgings, heat treatment including
carburizing and Induction hardening. Crank shaft forging, induction hardening and crown wheels quenching illustrated through a video clipping.The speaker also touched upon the increasing use of Aluminium , the advances in manufacturing to make the forgings to near net shape and use of extra high strength steels ,due to twin demands of Weight reduction and fuel efficiencyAfter the lecture programme there was an interaction Er.M.Chinna swamy, Chairman felicitation Er.S.C.Balawat & Er.K.B.Bhaskar proposed the vote of thanks.
Rtn. A.Ramesh, Retired Deputy Director, CFTRI, Mysore, a senior member of
ISHRAE, Mysore Chapter, Director-Engineering FOBICS and also a fellow member of Institution of Engineers India, delivered a technical lecture entitled " High Efficiency Chillers for Centralised air Conditioning Plants" at the Institution of Engineers on Wednesday the 26thApril 2017. Mr. Ramesh initiated his talk by explaining the need for chilling plants in the centralized air conditioning plants. It is a vital part of the all water cold distribution system in AC plants. He explained advantages of all water cold distribution systems to stress on importance of Chillers.He gave detailed information on classification of chillers, and the differences in the design of each category of chiller. He highlighted the difference in the design and performance levels of Scroll, Reciprocating, Screw and Centrifugal types of Compressors. He also explained the capacity limitations in each case. He stressed in great details the heat transfer processes involved in Chiller
plants. He explained the need to maintain a high value for the overall heat transfer coefficient by maintaining clean interiors for the tubes. He also explained the construction and advantages of Plate heat exchangers over the conventional Shell and Tube type of heat exchangers. He told the need and constructional features of different types of Water cooling towers used in large chilling plants. He highlighted, the advantages and of air cooling and evaporating water type cooling towers. He briefly touched the design features and advantages of VRF systems in the chillers. focused on the advantages and limitations of each type of chiller including absorption chillers. He briefly discussed the different standards like ASHRAE and ARI for chiller performance and the benefits of following and conforming the design parameters to these standards. The talk was followed by an interesting interaction session in which the audience got clarifications and additional information they needed. The function was presided over by Er. M. Chinnaswamy, Chairman, Institution
of Engineers (India) Mysore Local centre.Lecture programme was organized in association with ISHRAE Mysore Chapter. Sri .P.V.BharadwajPresident, ISHRAE, Mysore Chapter, Er.M.Chinnaswamy, Chairman felicitation Er.A.Ramesh ,Retd ,Dy Director ,CFTRI, Mysore and Sri.T.A.Prabhakar Secretary, ISHRAE, Mysore Chapter proposed the vote of thanks.
Er. S.C.Balawat, Consultant Metallurgist, Mysore delivered technical lecture on
“Materials in Automobiles” on 19th April 2017 at S P Bhat Hall.
High Efficiency Chiller for Central Air Conditioning Plants on : 26-04-2017
The Institution of Engineers ( India) Mysore Local Centre. Addition of Technical Books to our Library During January – April 2017
Sl No
Books
Author
1
Auto cad 2015 for Engineers & Designers 21st
Edition (3D & Advanced ) Volume -
II
Prof. Sham Tickoo
2
Auto cad 2015 for Engineers & Designers ( Basic & intermediate) Volume -
I
Prof. Sham Tickoo
3 ANSYS workbench 14.0 for Engineers & Designers ( A Tutorial approach)
Prof. Sham Tickoo
4 CNC Programming Fancie Control
Dr.S.K.Simha
5 Design & machine tools S.K.Basu
6 Engineering Mechanics ( In SI units) S.Tiomoshenko
D H Young / J.V.Rao
7 The finite element method and applications in Engineering using ANSYS
Erdogan Medenci Ibrahim Guven
8 Getting started with MATLAB (A quick introduction for Scientists & Engineers)
DORABJI TATA & RATANJI TATA. Jamsethji TATA founded TAJ MAHAL Hotel at Mumbai in his life time, to cater to the needs of Foreign specialists & guests as there was no Star Hotel at that time in India, this was his second dream done in his life time. His third dream of providing a center for higher learning & research resulted in establishing TATA RESEARCH INSTITUTE for Engineering and Science at Bengaluru in his life time. Now it is known as “Indian Institute of Science” which is rated very
Speaker : Er.A.Ramesh,Retd ,Dy Director ,CFTRI, Mysore
highly, for Imparting higher education in Science and Engineering in our Country.After his lecture , there was a lively interaction with the audience on various points.Er. M. Chinnaswamy Chairman felicitated Er. M.Fasihuddin and Er. B.V. Ravindranath Proposed vote of thanks.
