Optimum Size Selection For Spring Loaded Detachable Canister Launch Vehicle Interface For Multistage Long Range System
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2013 by IJETT Journal|
|Year of Publication : 2013|
|Authors : Tarak Nath De , S Sundarrajan , G Krishna Mohana Rao|
Tarak Nath De , S Sundarrajan , G Krishna Mohana Rao. "Optimum Size Selection For Spring Loaded Detachable Canister Launch Vehicle Interface For Multistage Long Range System". International Journal of Engineering Trends and Technology (IJETT). V5(1):1-9 Nov 2013. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Canister-launch vehicle(LV) interface size is optimised using selective assembly method. Any over or under size of the interface is a mission critical. LV and canister are made of nos of sections and their respective positions are fixed in a assembly. Due to tolerance stack up in the assembly shape of the canister and LV varies from a perfect cylinder. Optimum size of the interface is found out for the assemblies where it satisfies the functionality without any interference or extra clearance for canister-LV assembly. Various sets of sections are available for LV and canister in production line and they are assembled selectively based on their effect on final assembly deviation. Assembly deviations are accepted such that the range of deviation for LV or for canister is minimum. One particular size of the interface suits to all the canister-LV combination without affecting the mission requirement. This paper explain how optimum inter face size is decided for sets of canister-LV assemblies based on tolerance stack up model. Selective assembly method and genetic algorithm are used to find out suitable canister-LV combinations. The method of finding out optimum interface size helps to avoid nos of assembly-disassembly trials and related testing to find out suitable canister-LV pair and leaves remote chances of getting some assemblies which does not meet the functional requirement.
 Tarak Nath De, Dr. S Sundarrajan, Dr. G Krishna Mohana Rao(2012), ‘Configuaration Design of spring loaded detachable canister-launch vehicle interface for multistage long launch vehicle’-IOSR Journal of engineering(IOSRJEN);ISSN:2250-3021 Volume2,Issue 6(June2012) PP 1328-1333.
 Bryan R. Fischer , ‘ Mechanical tolerance stackup and analysis’, Text Book; Marcel Dekker,Inc; 2004
 Kannan.SM and Jayabalan.V (2001a), ‘A new grouping method to minimize surplus parts in selective assembly for complex assemblies’, International Journal of Production Research, Vol. 39, No. 9, pp. 1851-1863.
 Kannan.SM, Jayabalan.V, Rameshkanna.K and Saravanan. SM (2001b), ‘Selective assembly for minimizing the assembly tolerance in linear assembly’, 12th ISME Conference, 12th ISME National Conference, Chennai, India, pp. 420-425.
 Kannan.SM, Asha.A and Jayabalan.V (2005), ‘A new method in selective assembly to minimize clearance variation for a radial assembly using genetic algorithm’, Quality Engineering, Vol. 17, 595-607.
 Lee.S and Chunsik Yi (1996), ‘Statistical tolerance and clearance analysis for assembly’, Proc. IROS 96, IEEE, 0-7803-3213-X, pp. 688-694.
 Siva kumar.M and Kannan.SM (2007), ‘Optimum Manufacturing Tolerance to Selective Assembly Technique for different assembly specifications by using Genetic Algorithm’,International Journal of Advanced Manufacturing Technology, Vol.32,pp.591-598
Canister-LV interface, selective assembly, tolerance stack-up, genetic algorithm.