复合隔振体系多目标优化研究
发布时间：2019-02-14 07:27
【摘要】：传统动力设备的隔振,往往仅着眼于设备本身的振动抑制,而将其连接基础视为绝对刚性,忽略其振动.考虑"设备-隔振器-薄板基础"为复合隔振体系,设备通过4点安置在薄板上;并基于机械四端连接特性,推导了力的传递率.随后,在固支薄板振动分析的基础上,引入功率流理论,提出了多目标优化策略:使多点安置的设备隔振体系输入薄板的峰值功率流最小;与此同时,使动力设备尽可能地趋于均匀振动,以降低设备振动损害.多目标粒子群优化算法具有参数设置少,收敛快,优化能力强等优点,且可基于Pareto支配获得最优解.该研究将设备隔振、薄板振动、功率流传递以及智能多目标优化技术结合,固支薄板振动理论作为切入点为优化策略创造了有利条件.多目标粒子群优化算法的应用亦为工程隔振及振动控制提供了新思路.
[Abstract]:The vibration isolation of traditional power equipment is usually focused on the vibration suppression of the equipment itself, but the connection foundation is regarded as absolute rigidity, and the vibration is ignored. Considering that "equipment, vibration isolator-thin plate foundation" is a composite vibration isolation system, the equipment is placed on the thin plate through four points, and the force transfer rate is derived based on the characteristics of the mechanical four-terminal connection. Then, on the basis of the vibration analysis of clamped thin plate, the power flow theory is introduced, and the multi-objective optimization strategy is put forward: the peak power flow of the input plate is minimized by the multi-point isolation system; At the same time, the power equipment tends to the uniform vibration as far as possible, in order to reduce the vibration damage of the equipment. Multi-objective particle swarm optimization algorithm has the advantages of less parameter setting, fast convergence and strong optimization ability, and the optimal solution can be obtained based on Pareto domination. In this study, the vibration isolation of equipment, thin plate vibration, power flow transfer and intelligent multi-objective optimization technology are combined, and the theory of clamped thin plate vibration is used as the starting point to create favorable conditions for the optimization strategy. The application of multi-objective particle swarm optimization provides a new idea for engineering vibration isolation and vibration control.
【作者单位】： 中国中元国际工程有限公司;中国机械工业集团有限公司;合肥工业大学土木与水利工程学院;安徽土木工程结构与材料省级实验室;中国电子工程设计院;清华大学土木工程系;合肥工业大学机械与汽车工程学院;
【基金】：国家自然科学基金(51078123;51179043)~~
【分类号】：O328
本文编号：2421973
[Abstract]:The vibration isolation of traditional power equipment is usually focused on the vibration suppression of the equipment itself, but the connection foundation is regarded as absolute rigidity, and the vibration is ignored. Considering that "equipment, vibration isolator-thin plate foundation" is a composite vibration isolation system, the equipment is placed on the thin plate through four points, and the force transfer rate is derived based on the characteristics of the mechanical four-terminal connection. Then, on the basis of the vibration analysis of clamped thin plate, the power flow theory is introduced, and the multi-objective optimization strategy is put forward: the peak power flow of the input plate is minimized by the multi-point isolation system; At the same time, the power equipment tends to the uniform vibration as far as possible, in order to reduce the vibration damage of the equipment. Multi-objective particle swarm optimization algorithm has the advantages of less parameter setting, fast convergence and strong optimization ability, and the optimal solution can be obtained based on Pareto domination. In this study, the vibration isolation of equipment, thin plate vibration, power flow transfer and intelligent multi-objective optimization technology are combined, and the theory of clamped thin plate vibration is used as the starting point to create favorable conditions for the optimization strategy. The application of multi-objective particle swarm optimization provides a new idea for engineering vibration isolation and vibration control.
【作者单位】： 中国中元国际工程有限公司;中国机械工业集团有限公司;合肥工业大学土木与水利工程学院;安徽土木工程结构与材料省级实验室;中国电子工程设计院;清华大学土木工程系;合肥工业大学机械与汽车工程学院;
【基金】：国家自然科学基金(51078123;51179043)~~
【分类号】：O328
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，本文编号：2421973
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