IJARME

FE Analysis Of Flexural Bearing For Linear Compressor

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Abstract

Flexure bearing is a new concept and used for precision applications such as Programmable focusing mechanism (PFM), linear compressor etc. These bearings are compact and inexpensive. A flexure bearing is designed for specific applications. These designed can usually be done with the advanced design tool like FEA. With the advent of computers FEA has become the most suitable tool for the engineering analysis where the conventional approach is not suitable, geometric complexity are involved etc. This paper deals with the study of flexure bearings in linear compressor and makes theoretical analysis on it to calculate axial stiffness, radial stiffness and parasitic motion. Using software’s like CATIA and PROE ,modeling of flexure bearing done. Also make FEM analysis on it by using Ansys software. Then compare result of theoretical and FEM analysis. And lastly, this project considers the fatigue life criteria for flexure bearing and tries to optimize it. Gaurenkar have made design calculation and FE Analysis for flexure bearing to make appropriate model. This bearing contains three slots having 120° apart and 12 peripheral holes are used to clamp the disc rigidly onto a support structure. One central hole made for movement of shaft.

Recommended Citation

] Ajit S. Gaunekar, Gary P. Widdowson, Narasimalu Srikanth, Wang Guangneng, Design and development of a high precision lens focusing mechanism using flexural bearings, ASM Technology Singapore Pte. Ltd., 2 Yishun Avenue 7, Singapore 768924 2] Yingbai XIE, Xiuzhi HUANG, Liangming GUI, Zhouxuan XU, Analysis of the No-Load Characteristic of the Moving Coil Linear Compressor, International Compressor Engineering Conference at Purdue, July 14-17, 2008. 3] B. J. Huang, Y. C. Chen, System Dynamics and Control of a Linear Compressor for Stroke and Frequency Adjustment, Transactions of the ASME, Vol. 124, MARCH 2002. 4] H.P. Luo, B. Zhang, Z.X. Zhou, A rotary flexural bearing for micromanufacturing, Manufacturing Technology 57 (2008) 179–182. 5] Kyeongbae Park, Eonpyo Hong, Kichul Choi, Wonhyun Jung, Linear Compressor Without Position Controller, International Compressor Engineering Conference at Purdue, July 12-15, 2004. 6] M. Mai, I. Ruehlich, C. Rosenhagen, and Th. Wiedmann, Development of the Miniature Flexure Bearing Cryocooler SF070, International Cryocooler Conference, Inc. Boulder CO, 2009. 7] Cadman.R.V. and Cohen R.,1969,Electrodynamic oscillating compressor part-1page no.-656-663 and part-2 page no. 664-670. 8] T.R.Chandrupatla,A.D.Belagundu : Finite Elements In Engineering ,Pearsons Education 9] Nitin Gokhale, Sanjay Deshpande :Practical Finite Element Analysis , Finite to Infinite Publications, Pune 10] Zhao S-B(1984) Anti –fatigue Design.Mech Industry press,Beijing. 11] Malpani.S.A.(2011) Introductory review on design and FEA Analysis of flexure bearing, Journal Bianano Frontier, page no.- 646 to 649, NCETAES11,at SCOE,Kharghar, Navi Mumbai