摘要
以计算多体动力学理论为指导,以船舶柴油发电机组的抗冲击研究为背景,建立了柴油发电机组的多体动力学以及线性隔振系统模型,并通过实验验证模型的正确性;在此基础上构建机组的非线性隔振系统,并对机组额定工况以及冲击条件下隔振系统的动态特性进行分析,结果表明非线性隔振系统较线性隔振系统有良好的隔振效果。文中的建模与求解方法较数学建模与求解简单易行,对隔振器选型与安装、非线性隔振器的参数化设计与优化、其它船用机械的抗冲击研究奠定了一定的工程应用基础。
With the instruction of computational dynamics of multi-body systems,, and under the background of shock resistance study on marine diesel generator, the multi-body dynamics systems of diesel generator and linear vibration isolation system were modeled and verified by diesel vibration intensity experiments. On these bases, the non-linear vibration isolation system was constructed, then, its dynamic characteristics were analyzed when the diesel generator working in rated condition and under impact loads respectively. The results indicate that the effect of the non-linear vibration isolation system is better than that of the linear vibration isolation system. Comparing with the mathematic method, the modeling and solving method in the paper can be process of model selection and vibration isolators installation, resistance study of other mechanisms. more easily realized. The method can be widely used in the in the parametric design and optimization, and in the shock
出处
《振动与冲击》
EI
CSCD
北大核心
2011年第8期139-143,共5页
Journal of Vibration and Shock
关键词
非线性
隔振器
冲击
多体动力学
柴油机
non-linearity
. vibration isolator
impact
dynamics of multi-body
diesel engine
