基于蒙特卡罗法的摩托车车架灵敏度分析
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摘要
摩托车车架的灵敏度分析有助于提高其设计的成功率。在阐述蒙特卡罗全局灵敏度分析法原理以及车架灵敏度分析数值模拟实现的基础上,以某250型新开发摩托车车架为例,通过建立其整车动力学和灵敏度分析模型,进行该车车架的动态灵敏度分析,找出对车架振动响应影响较大的敏感设计参数,并通过修改敏感设计参数降低某些测点的振动响应,从而验证该方法的可靠性和实用性。同时也为其它复杂结构的灵敏度分析提供了一种可借鉴的方法。
Sensitivity analysis of motorcycle frames is useful for improving the design success rate.Based on sensitivity analysis theory and using the Monte Carlo and numerical simulation methods,a new 250-type integral motorcycle model was built and dynamic sensitivity analysis conducted.Sensitive design parameters that have great influence on frame vibration were discovered.By modifying the values of sensitive design parameters,the vibration of some measuring points was reduced.This reduction shows that the sensitivity analysis method is reliable and practical,and it can be used in sensitivity analyses of other complicated structures.
Sensitivity analysis of motorcycle frames is useful for improving the design success rate.Based on sensitivity analysis theory and using the Monte Carlo and numerical simulation methods,a new 250-type integral motorcycle model was built and dynamic sensitivity analysis conducted.Sensitive design parameters that have great influence on frame vibration were discovered.By modifying the values of sensitive design parameters,the vibration of some measuring points was reduced.This reduction shows that the sensitivity analysis method is reliable and practical,and it can be used in sensitivity analyses of other complicated structures.
引文
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[2]于德介,李睿.Sobol法在非线性被动隔振体灵敏度分析中的应用研究[J].振动工程学报,2004,17(2):200-213.YU DE-JIE,LI RUI.Application of Sobol’method tosensitivity analysis of a non-linear passive vibrationisolators[J].Journal of Vibration Engineering,2004,17(2):200-213.
[3]周斌,董大伟,谭达明.曲轴扭转和转速附加波动的蒙特-卡洛模拟分析[J].内燃机工程,1997,18(4):33-37.ZHOU BIN,DONG DA-WEI,TAN DA-MING.Ananalysis of additional fluctuation of crankshaft torqueand speed by using Monte-Carlo simulation[J].ChineseInternal Combustion Engine Engineering,1997,18(4):33-37.
[4]肖刚,李天柁.系统可靠性分析中的蒙特卡罗方法[M].北京:科学出版社,2003.
[5]张蕾,董恩国,申焱华.基于蒙特卡罗法的行星齿轮机构稳健性分析[J].机械传动,2008,32(4):17-19.ZHANG LEI,DONG EN-GUO,SHEN YAN-HUA.Robustness analysis of planetary gear mechanism basedon Monte Carlo method[J].Journal of MechanicalTransmission,2008,32(4):17-19.
[6]王强,刘刚,温家伶,等.基于Monte-Carlo法和有限元的起重机结构可靠性研究[J].武汉理工大学学报:交通科学与工程版,2003,27(5):702-704.WANG QIANG,LIU GANG,WEN JIA-LING,et al.Reliability of crane structure based on Monte Carlo andfinite element method[J].Journal of Wuhan Universityof Technology:Transportation Science&Engineering,2003,27(5):702-704.
[7]De LATAILLADE A,BLANCO S,CLERGENT Y,etal.Monte Carlo method and sensitivity estimations[J].Journal of Quantitative Spectroscopy&RadiativeTransfer,2002,75:529-538.
[8]SMIDTS O F,ROUSSILLE O.Sensitivity analysis inthe migration of radionuclides:differential Monte Carloversus double randomization[J].Mathematics andComputersin Simulation,2001,55:259-270.
[9]AHAMMED M,MELCHERS R E.Gradient andparameter sensitivity estimation for systems evaluatedusing Monte Carlo analysis[J].Reliability Engineeringand System Safety,2006,91:594-601.
[10]MARSEGUERRA M,ZIO E,PODOFILLINI L.First-order differential sensitivity analysis of an unclear safetysystem by Monte Carlo simulation[J].ReliabilityEngineering and System Safety,2005,90:162-168.
[11]博弈创作室.ANSYS9.0经典产品高级分析技术与实例详解[M].北京:中国水利水电出版社,2005.
[12]王鹰宇,姚进,成善宝.基于ANSYS环境的参数化有限元建模[J].机械,2003,30(4):12-14.WANG YING-YU,YAO JIN,CHENG SHAN-BAO.FEA parameter modeling based on ANSYS[J].Machinery,2003,30(4):12-14.
[13]张令心,江近仁.Latin超立方采样技术及其在结构可靠性分析中的应用[J].世界地震工程,1997,13(4):1-6.ZHANG LING-XIN,JIANG JIN-REN.Latinhypercube sampling and its application to structuralreliability analysis[J].World Information onEarthquake Engineering,1997,13(4):1-6.
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