Summary
The aim of this article is to provide a systematic investigation to the design or optimal design of the shock absorber for the protection of a precision system as electronic packaging system in harsh vibration-impact environment. To get the dual demand of resisting violent impact and attenuating vibration in vibration-impact-safety for precision equipment or components, a novel micro fluid coupling damping shock absorber is designed and manufactured through coupling the oil, rubber ball and spring by ingenious tactics. The physical mechanism of the actual shock absorber is systematically investigated. The experimental results of the key-model machine in dynamic tests show complex nonlinear dynamic characteristics. Based on the test, the nonlinear dynamic model for the shock absorber is presented by analyzing the internal fluid dynamic phenomenon with respect to the shock absorber. Comparisons with experimental data confirm the validity of the model. The model is integrated by introducing normalization measure in progress. The approximate formulae are deduced by introducing some transformation tactics. These approximate theoretical formulae include the output response of the system, absolute acceleration transmissibility in vibration or impact, and the maximum relative displacement in impact process etc. So the optimal model for parameters matching the design is built. The parameters matching the design are discussed based on an approximate solution in progress. Finally, an example of the applied product is described.
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References
Ping, Y.: Research on design, modelling, simulation and testing of nonlinear coupling shock absorber. PhD Dissertation, Huazhong University of Science and Technology 2001.
B. Raindra A. K. Mallik (1993) ArticleTitleHard Duffing-type vibration isolator with combined Coulomb and viscous damping Int. J. Non-linear Mech. 28 427–440 Occurrence Handle10.1016/0020-7462(93)90017-F
N. Chandra Shekhar H. Hatwal (1998) ArticleTitleResponse of non-linear dissipative shock isolators J. Sound Vibr. 214 589–603 Occurrence Handle10.1006/jsvi.1997.1468
S. S. Gurleyuk (2005) ArticleTitleVibration reduction in a step motor using optimal control time intervals and amplitudes Acta Mech. 177 137–148 Occurrence Handle10.1007/s00707-005-0231-5
M. J. Hochrainer (2005) ArticleTitleTuned liquid column damper for structural control Acta Mech. 175 57–76 Occurrence Handle1068.74046 Occurrence Handle10.1007/s00707-004-0193-z
Y. Ping (2003) ArticleTitleExperimental and mathematical evaluation of dynamic behaviour of an oil-air coupling shock absorber Mech. Systems Signal Proces. 17 1367–1379 Occurrence Handle10.1006/mssp.2002.1528
Y. Ping (2006) ArticleTitleApproximate solution of a multi-medium coupling nonlinear isolator under random vibration excitation Engng. Mech. 23 170–175
S. Jingchao (1980) Hydraulic Fluid Mechanics Machine Press Beijing
A. L. Audenino G. Belingardi (1995) ArticleTitleModelling the dynamic behavior of motorcycle damper Proc. Instn. Mech. Engrs. Part D: J. Automobile Engng. 209 249–262
C. Surace K. Worden G. Tomlinson (1992) ArticleTitleOn the non-linear characteristics of automotive shock absorbers Proc Instn. Mech. Engrs. Part D: J. Automobile Engng. 206 3–16
J. Wallaschek (1990) ArticleTitleDynamics of nonlinear automotive shock absorbers Int. J. Non-linear Mech. 25 299–308 Occurrence Handle10.1016/0020-7462(90)90059-I
Harris, C. M., Crede, C. E.: Shock and vibration handbook. Mc-Graw-Hill 1990.
A. Evkin (2004) ArticleTitleSymptotic investigation of vehicle shock absorber with reversing shell of revolution Int. J. Vehicle Design 34 399–410 Occurrence Handle10.1504/IJVD.2004.004065
Anon.: Reciprocating seal for shock absorber applications. Sealing Technology 7, 10 (2004).
J. C. Ramos A. Rivas J. Biera (2005) ArticleTitleDevelopment of a thermal model for automotive twin-tube shock absorbers Applied Thermal Engng. 25 1836–1853 Occurrence Handle10.1016/j.applthermaleng.2004.11.005
M. H. Holdhusen K. A. Cunefare (2004) ArticleTitleOptimization of a state-switched absorber applied to a continuous vibrating system Proceedings of the SPIE – The Int. Society Optical. Engng. 5386 319–328
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Ping, Y. Dynamic investigation and optimal design of a novel fluid coupling shock absorber for dual demand of vibration and impact safety of precision systems. Acta Mechanica 190, 205–222 (2007). https://doi.org/10.1007/s00707-006-0433-5
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DOI: https://doi.org/10.1007/s00707-006-0433-5