[1] Jia Fang, Zhang Fancheng,. Mechanical properties of disc-spring vibration isolatorsbased on boundary friction [J]. Journal of Southeast University (English Edition), 2014, 30 (1): 39-44. [doi:10.3969/j.issn.1003-7985.2014.01.008]
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Mechanical properties of disc-spring vibration isolatorsbased on boundary friction(
)
基于边界摩擦的碟簧隔振器力学性能
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 30
- Issue:
- 2014 1
- Page:
- 39-44
- Research Field:
- Computer Science and Engineering
- Publishing date:
- 2014-03-31
Info
- Title:
- Mechanical properties of disc-spring vibration isolatorsbased on boundary friction
- 基于边界摩擦的碟簧隔振器力学性能
- Author(s):
- Jia Fang; Zhang Fancheng
- School of Mechanical Engineering, Southeast University, Nanjing 210096, China
- Keywords:
- disc-spring vibration isolator; boundary friction; hysteresis curve; dynamic stiffness; damping; finite element analysis(FEA)
- PACS:
- TP391
- DOI:
- 10.3969/j.issn.1003-7985.2014.01.008
- Abstract:
- To ascertain the influence of the boundary friction on mechanical properties of disc-spring vibration isolators, a load-displacement hysteresis curve formula of disc-spring vibration isolators is derived on the basis of the energy conservation law, as well as considering the effect of the boundary friction. The formula is validated through the finite element analysis and static load tests. On this basis, the effect of the boundary friction on the bearing capacity is researched. Then the dynamic performance of disc-spring vibration isolators is studied by dynamic tests. The experimental results indicate that the boundary friction can promise a larger damping with a ratio of 0.23 for disc-spring vibration isolators. Compared with the loading frequency, the loading amplitude has a greater impact on the energy consumption, dynamic stiffness and damping of vibration isolators. This research can provide valuable information for the design of disc-spring vibration isolators.
- 为研究边界摩擦对碟簧隔振器力学性能的影响, 基于能量守恒定律推导了在考虑边界摩擦时碟簧隔振器的载荷位移迟滞曲线公式.通过有限元分析与静载试验验证了该公式的正确性.在此基础上研究了边界摩擦对碟簧隔振器承载能力的影响, 并通过动载试验研究了边界摩擦对碟簧隔振器的动态性能的影响.试验结果表明:边界摩擦可提供较大的阻尼, 使得碟簧隔振器具有良好的阻尼特性, 其阻尼比可达0.23;隔振器的耗能、动刚度和阻尼特性对加载幅值更为敏感, 而对加载频率敏感度较小.该研究成果对碟簧隔振器设计具有重要的指导意义.
References:
[1] Saini P K, Kumar P, Tandon P. Design and analysis of radially tapered disc springs with parabolically varying thickness[J]. Journal of Mechanical Engineering Science, 2007, 221(2): 151-158.
[2] Fawazi N, Lee J, Oh J. A load-displacement prediction for a bended slotted disc using the energy method[J]. Journal of Mechanical Engineering Science, 2012, 226(8): 2126-2137.
[3] Curti G, Montanini R. On the influence of friction in the calculation of conical disk springs[J]. Journal of Mechanical Design, 1999, 121(4): 622-627.
[4] Ozaki S, Tsuda K, Tominaga J. Analyses of static and dynamic behavior of coned disk springs: effects of friction boundaries[J]. Thin-Walled Structures, 2012, 59: 132-143.
[5] Xiong Shishu, Li Huisheng, Huang Liting, et al. Design and application of base isolation system for explosive laboratory[J]. Explosion and Shock Waves, 2006, 26(2): 145-149.(in Chinese)
[6] Du Junmin, Dai Shuangxian. Research on dynamic characteristics of saucer dampers[J]. Construction Machinery and Equipment, 2009, 40(11): 15-18.(in Chinese)
[7] Gong Xiansheng, Xie Zhijiang, Luo Zhenhuang, et al. The characteristics of a nonlinear damper for vibration isolation[J]. Journal of Vibration Engineering, 2001, 14(3): 90-94.(in Chinese)
[8] Peng Z K, Meng G, Lang Z Q, et al. Study of the effects of cubic nonlinear damping on vibration isolations using harmonic balance method[J]. International Journal of Non-Linear Mechanics, 2012, 47(10): 1073-1080.
[9] Almen J O, Laszlo A. The uniform-section belleville spring[J]. Trans ASME, 1936, 58(5): 387-392.
[10] Yi Xianzhong. Analysis of basic characteristic parameters of disk springs [J]. China Petroleum Machinery, 1995, 23(3): 10-17.(in Chinese)
[11] Chen Heshi. Experimental study of nonlinear assembled isolator for high speed press[D]. Nanjing: School of Mechanical Engineering of Southeast University, 2011.(in Chinese)
Memo
- Memo:
-
Biography: Jia Fang(1968—), female, doctor, associate professor, 13851896116@139.com.
Foundation item: Transformation Program of Science and Technology Achievements of Jiangsu Province(No.BA2008030).
Citation: Jia Fang, Zhang Fancheng. Mechanical properties of disc-spring vibration isolators based on boundary friction[J].Journal of Southeast University(English Edition), 2014, 30(1):39-44.[doi:10.3969/j.issn.1003-7985.2014.01.008]