RSS机座拓扑结构对径向刚度和稳定性的影响

邓晗,2,买买提明?艾尼1,2,王晓亮1,2,陈华磊3,徐华4,周广民5,

振动与冲击 ›› 2016, Vol. 35 ›› Issue (11) : 102-108.

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (11) : 102-108.
论文

RSS机座拓扑结构对径向刚度和稳定性的影响

  • 邓晗 ,2,买买提明•艾尼1,2,王晓亮1,2,陈华磊3,徐华4,周广民5,刘龙毅5,柳浩5
作者信息 +

RSS Support Topological Structure Influence to Radial Stiffness and Stability

  • Han DENG 1,2  Mamtimin GENI1,2Hua-lei CHEN3 Hua XU4 Guangmin ZHOU5 Longyi LIU5 Hao LIU5
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文章历史 +

摘要

以燃气轮机透平端RSS(旋转对称支承板)机座为研究背景,通过用D’Alembert原理建立了RSS机座的拓扑优化域和等价边界条件,从而用均匀化方法为基础的变密度法(SIMP)实现了RSS机座拓扑结构优化,得到了旋转对称的弧形支承板拓扑结构的机座。然后,在统一基本尺寸和边界条件下在ANSYS workbench中建立了三种不同的RSS机座拓扑结构的光滑有限元模型并进行了有限元分析、计算了中心标高的变化量,对比分析了三种RSS机座的对中性和径向刚度。同时,通过建立转子系统动力学方程,运用穷举法分析了三种机座支承参数对转子-轴承系统过临界振幅的影响,对比分析了三种机座支承最佳匹配刚度以及振幅的变化。通过分析可知,RSS机座的拓扑结构对机座中心标高、支承刚度和过临界振幅的影响很大。特别是,偏心率越大其影响也越大。偏心率的影响也影响最佳匹配的支承参数。这将为转子系统设计过临界振幅最小的RSS机座最佳支承刚度匹配提供参考。

Abstract

Takes the gas turbine end RSS (Rotationally Symmetric Struts) support as the research background, RSS support topology optimization domain and the equivalent boundary conditions was established by using the principle of D’Alembert, and the topology optimization of RSS supports are realized by using SIMP based on the homogenization method, then the topological structure of rotationally symmetric arc-shaped struts supports are obtained. After that, the smoothing finite element models of three kinds of RSS supports topological structure are established in the unity of the basic size and boundary conditions by using the ANSYS workbench, and the finite element analysis and calculations of center elevation variation are carried out, and the centering and radial stiffness of three kinds of RSS support are analyzed comparatively. At the same time, through the establishment of dynamic equation of rotor system, the influence of three kinds of support parameters on the critical passing through amplitude of rotor bearing system are analyzed by using the EA (Exhaustive Attack) method, and three kinds of optimal matching support stiffness and amplitude changes are discussed. Through the analysis of RSS support it is clear, the support central elevation, stiffness and the critical amplitude are greatly influence by its topological structure. Especially, the larger eccentricity ratio and its influence are bigger. The eccentricity effects also influence of optimum matching support parameters. This will provide the reference for the rotor system to design the RSS support best matching support stiffness with minimum critical passing through amplitude.

关键词

RSS机座 / 拓扑优化 / 穷举法 / 最小临界振幅 / 最佳刚度匹配

Key words

RSS Support / Topology Optimization / Exhaustive Attack Method / Minimum Critical Amplitude / Best Matching Stiffness.

引用本文

导出引用
邓晗,2,买买提明?艾尼1,2,王晓亮1,2,陈华磊3,徐华4,周广民5,. RSS机座拓扑结构对径向刚度和稳定性的影响[J]. 振动与冲击, 2016, 35(11): 102-108
Han DENG 1,2 Mamtimin GENI1,2Hua-lei CHEN3 Hua XU4 Guangmin ZHOU5 Longyi LIU5 Hao LIU5. RSS Support Topological Structure Influence to Radial Stiffness and Stability[J]. Journal of Vibration and Shock, 2016, 35(11): 102-108

参考文献

[1] FederalRegister[EB]. Vol.73, No.23, 04.02.2008.
[2] 虞烈,刘恒.轴承-转子系统动力学[M].西安:西安交通大学出版社,2001
YU Lie, LIU Heng. Dynamics of bearing rotor system[M]. XI’an. Xi'an Jiao Tong University press, 2001
[3] Y. Fukuizumiet. al, Journal of Engineering for Gas Turbines and Power[J].Vol.127, 2005, 369-374.
[4] United States Patent, Pn[P].5483792, Jan.16, 1996.
[5] EuropeanPatent,EP[P]. 1775428A2, 8.04.2007.
[6] LI Zhen-shi, Mamtimin, Lie Yu. Study on Parametric Modeling Method for FEA Model of Periodic Symmetric Struts Support[J]. KeyEngineering Materials,2011,462-463:985-989
[7] Mamtimin, LIU Wei-bing, YU Lie. Study on Dynamic Response and the Effect to Center Level Height of Periodic Symmetric Struts Support [J]. Key Engineering Materials,2011,462-463: 1013-1018
[8] 陈开银,买买提明•艾尼.RSS机座参数化设计与结构优化[J].汽轮机技术, 2011,23 (6):419-421
CHEN Kai-yin, Mamtimin. Parametric Design and Structural Optimization of Rotational Symmetric Struts Support [J].Turbine Technology, 2011,23(6):419-421
[9] 陈华磊,买买提明•艾尼,王豫鄂.旋转对称支承机座的热分析与变工况计算[J].机床与液压,2013,41(1):35-37
CHEN Hua-lei, Mamtimin, WANG Yu-e. Partial Load Calculation and Thermal Analysis of Rotational Symmetric Struts Support[J]. Machine Tool and Hydraulics, 2013,41(1):35-37
[10] 王豫鄂,买买提明•艾尼,郭艳朋,李俊猛,吕超.RSS机座多目标驱动尺寸优化及动态分析[J].汽轮机技术,2013,55(4):275-278
WANG Yu-e, Mamtimin, GUO Yan-peng, LI Jun-meng, LV Chao. Dynamic Analysis and Multi-objective Drive Size Optimization of Rotational Symmetry Struts Support[J]. Turbine Technology,2013,55(4):275-278
[11] 闫水中,买买提明•艾尼,徐宁.燃气轮机轴系的振动特性数值分析[J].机械设计与制造,2012,(12):22-24
YAN Shui-zhong, Mamtimin, XU Ning. Numerical Analysis on the Non-Synchronous Responses of Shaft System for Gas Turbine[J]. Mechanical design and manufacturing,2012,(12):22-24
[12] Bendsoe M P,Kikuchi N .Generating optimal topologies in structural design using a homogenization method[J]. Computer Methods in Applied Mechanics and Engineering,1988,(71):l97-224.
[13] 林丹益,李芳.基于ANSYS的结构拓扑优化[J].机电工程,2012,(8):899-901
LIN dan-yi,LI Fang. Topological    Optimization of Continuum Structure base on ANSYS[J].Journal of Mechanical & Electrical Engineering,2012(8):899-901
[14] 常萍萍,买买提明•艾尼,陈开银.旋转对称支承板刚度的数值分析与评价[J].机械设计与制造,2012,(4):224-226
CHANG Ping-ping, Mamtimin, CHEN Kai-yin. Numerical Evaluation of Rotational Symmetric Struts Support Stiffness[J]. Mechanical design and manufacturing, 2012,(4):224-226
[15] 徐宁,买买提明•艾尼,闫中水. 燃气轮机转子系统支承刚度阻尼匹配的研究[J]. 机械设计与制造,2013,(1):134-136
XU Ning, Mamtimin, YAN Zhong-shui. Research on Support Stiffness and Damping Matching of Gas Turbine Rotor System[J]. Mechanical design and manufacturing,2013,(1):134-136

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