Dynamic Analysis and Multiparameters Optimization of Hydrostatic Supported Worktable System

Abstract:

The natural frequency at lower orders for hydrostatic supported worktable system may easily give rise to vibration as in resonance with excitation frequency. This paper is concerned with the geometrical optimum design and dynamic modal analysis for system with hydrostatic oil fluid and worktable simultaneously. The variations of eigenfrequency, respect to oil film thickness, outer radius of worktable, recess shape and number, were discussed. The results show that, under linear increment/decrement of geometry dimension, frequency increase/decrease but in nonlinear regularity. Therefore there exists an optimum dimension resulting the optimum frequency that deviate from the rotary frequency at work and its multiple ones. Then two-phase optimization strategy was effectively programmed to get involved with finite element analysis software. It is theoretically critical to get the optimum parameter of hydrostatic supported worktable on how and practically important to guide the design in engineering.

• Periodical: Advanced Materials Research (Volumes 562-564)
• Pages: 1155-1158
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.562-564.1155
• Online since: August 2012
• Authors: Hong Ling Ye, Pin Wen, Xiao Long Zheng
• Keywords: Dynamic Analysis, Hydrostatic Supported Worktable System, Parameters Optimal Design, Response Surface Function

References

[1] S. C. Sharama, S. C. Jain, D. K. Bharuka. Influence of Recess Shape on the Performance of a Capillary Compensated Circular Thrust Pad Hydrostatic Bearing[J]. Tribology International. 2002, 35(6): 347-356.

DOI: 10.1016/s0301-679x(02)00013-0

[2] Chen D, He Cunfu. Dynamic and static characteristics of a hydrostatic spindle for machine tools[J]. journal of manufacturing system. 2010, 11: 1-6.

[3] Satish C. Sharma, Vikas M. Phalle, S.C. Jain. performance analysis of a multirecess capillary compensated conical hydrostatic journal bearing[J]. Tribology International2011, 44: 617-626.

DOI: 10.1016/j.triboint.2010.12.012

[4] S Sarkar, A Nandi et. al. finite element analysis of misaligned rotors on oil-film bearings[J]. Sadhana 2010, 35, 1: 45-61.

DOI: 10.1007/s12046-010-0005-1

[5] E. Solmaz, F.C. Babalik et. al. multicriteria optimization for hydrostatic bearing design[J]. industrial lubrication and tribology 2002, 54, 1: 20-26.

DOI: 10.1108/00368790210415338

[6] Rongxue Ye, Sun Wei, Zhang Minquan et. al. Oil Layer Stiffness Variable Affects on Vibration Characteristics[J]. 2006, 48(2): 114-116.

[7] Zheng Xiaolong, Ye hongling, Sui Yongkang et. al. The Fitting of Response Surface Function with Maximum Difference Minimization Method[J]. 2010, 28(17).