iosr-JMCE   Volume-3 ~ Issue-2

Abstract: Our main objective in this paper is to power up the electric cars with dynamos. The major disadvantage we are facing in the electric car is that the charge in the battery which gives the supply for motor gets discharge and hence it should be stopped or parked in the area where the current should be easily taken. But the biggest problem is that when the car get loses its full charge while driving in an area where the current could not be taken easily or there is no sort of current in that area then you can't able to reach your palace .Hence to change this problem the dynamos are used to solve it. Dynamo is a device which is capable of changing mechanical energy into electrical energy .Hence by using this character of the dynamo the problem can be solved. The description of this technique is that by placing one dynamo in each wheel so that each dynamo will produce a charge through the rotatory motion given by the wheels of the car and these charges is stored in a separate battery and that can be used for the emergency purpose and this process is cyclic. When car losses its charge while running on the charge produced by the dynamo, the dynamo will not stops its work, it again produce a charge so that you can go for a longer distance.
Keywords:Dynamos, Emergency purpose, Electric charge, Battery, Gear system

1] www.wikipedia.org , www.evmotors.com, www.alibaba.com, electriccars-info.com
[2] Automobile mechanical and electrical system by Tom Denton
[3] Electric and hybrid cars :A History by Curtis D.Anderson and Judy Anderson
[4] The 2011 Electric Car Guide By Michael Box well

Abstract: A typical laminated structure of great use in aeronautical/aerospace, marine and civil engineering constructions is the sandwich-type construction. In the design of sandwich structures, components must be joined in such a manner that the overall structure retains its structural integrity while performing its intended function, subjected to loads and environment. The present work focuses on the finite element analysis of flat joints in adhesively bonded metallic honeycomb sandwich beam using ANSYS 13. The flat joint considered in the study is butt joint with doubler. The load-deflection characteristics, stress distribution patters , effects of variation of core thickness, skin thickness, and adhesive film thickness on the displacement and stress distributions are studied. Results are critically reviewed and presented
Keywords: Sandwich structures, honeycomb sandwich beam, joints in sandwich structures

[1] H.G Allen, Analysis and design of structural sandwich panels (Pregmon Press, Oxford, 1969).
[2] Jack R Vinson, Behaviour of sandwich structures of isotropic and composite materials (Pennsylvania, Taylor and Francis
Routledge, 1999)
[3] Ha K.H, Finite element analysis of sandwich plates An overview, Computers and Structures, 37, 1990, 397 – 403
[4] Hussanih. Ai-Qarra, Finite deflection of sandwich beams and plates by finite element method, Journal of Engineering
Mechanics,115, 1989, 1318-1335
[5] Liviu L and H Teery, Recent developments in the modeling and behavior of advanced sandwich constructions A survey, Composite
Structures, 48, 2000, 1- 17
[6] Meifing H and H Wenbin, A study on composite honeycomb sandwich panel structure, Material and design, 29, 2008, 709-713
[7] Gaetano G. G, V Christine and S E Omar, Theoretical design and analysis of a honeycomb panel sandwich structure loaded in pure
bending, Engineering failure analysis, 15, 2008, 555 – 562
[8] Keun-I S, C Ji-Young, K Jin-Hwe, C Jin-Ho, K Kwang-Soo Kim, An experimental study of joint strength of composite sandwich
structures, Composites and Structures, 86, 2008, 107-113
[9] Byoung J.K and G L Dai, Development of a satellite structure with the sandwich T Joint, Composite structures, 92, 2010, 460-468.
[10] Carlson L.A and G.A Kardomates, Structural and failure mechanism of sandwich composites, (London, Springer, 2011)

Abstract: To ensure maximum availability and optimum utilization of the locomotives, scheduled preventive maintenance is carried out at specified intervals. Any excess time taken, directly affects the availability of locomotives for rail services. In this paper a case study of implementation of the unit replacement method at Diesel POH shop Ajmer will be examined. In order to be able to conduct experiments historical data of POH cycle time for over one year were gathered to calculate current average cycle time for POH. 14 locos overhauled from 1st January 2012 were selected for the case study. The unit replacement method was hypothetically applied in the engine section for these locos. The result was an average POH cycle time reduced from 31.07 days to 26.92 days. The result supported the hypothesis that "Time required for Periodic Overhauling of Diesel Locomotives can be reduced using Unit Replacement"
Keywords:Cycle time, Day, Locomotive (loco), Periodic Overhauling (POH), Unit,

[1] Vorster, Hendrik Petrus De Wet, "An analysis of the effectiveness of the asset maintenance plan at Spoornet: case study: class
diesel locomotives (traction and rolling stock)" (2001). Peninsula Technikon Theses & Dissertations. Paper 14.
http://dk.cput.ac.za/td_ptech/14
[2] Kaiser, Kevin Michael University of Iowa, 2007. http://ir.uiowa.edu/etd/152
[3] Harris, A and Kelly, M. 1978 Management of Industrial Maintenance. Durban, South Africa: Butterworth & Co (Pty) Ltd.
[4] Seventeenth Report Standing Committee on Railways (2005-06) (Fourteenth Lok Sabha) Ministry of railways (Railway board)
Published under Rule 382 of the Rules of Procedure and Conduct of Business in Lok Sabha (Eleventh Edition) and Printed by
Jainco Art India, New Delhi-110 005.

Abstract: The operations of preparing the deform sample and round bar mainly consist of the calculation of the bar's unit weight. The Sampling process is conducted through the two cutting flows such as in line production and disc. The problems are then occurred in the second flow (in disc) in performing the cutting process on a certain length. Modeling of the jig sampling is used to solve this problem and also fully discussed throughout this paper..
Keywords:Bar, Jig Sampling, Mass Interval, Unit Weight

[1] S. Kaldor, A. M. Rafael, and D. Messinger, On the CAD of Profiles for Cutters and Helical Flutes - Geometrical Aspects, CIRP
Annals - Manufacturing Technology, 37(1), 1988, 53-56.
[2] R. Iankov, Finite element simulation of profile rolling of wire, Journal of Materials Processing Technology, 142(2), 2003, 355-361.
[3] T. El Maaddawy, and K. Soudki, A model for prediction of time from corrosion initiation to corrosion cracking, Cement and
Concrete Composites, 29(3), 2007, 168-175.
[4] A. Y. C. Nee, Z. J. Tao, and A. Senthil Kumar, An Advanced Treatise on Fixture Design and Planning (Series on Manufacturing
Systems and Technology) (New Jersey: World Scientific Pub Co Inc, 2004).