摘要
为了使弹性基础的隔振效果达到最佳,对影响其隔振效果的参数进行了优化设计.根据双自由度有阻尼振动动力学模型,应用傅里叶变换法求出振动传递率;基于序列二次规划法的锻锤砧下直接隔振优化设计模型,结合振动传递率化简结果,合理确定隔振系统优化参数.以5t模锻锤为例进行优化设计,分析结果表明,经优化后的参数使振动传递率下降25.29%,该方案使机器振动衰减更快、更平稳,符合实际要求.
The parameters which influence the isolation effect of elastic foundation of forging hammer were optimized to obtain the optimal isolation effect. Based on the dynamic model of damped vibration with double freedom degrees, the vibration transfer ratio was solved using the Fourier transform method. According to the sequential quadratic programming （SQP） based optimization design model of direct vibration isolation for anvil block and through combining with the simplified result of vibration transfer ratio, the optimized parameters for the vibration isolating system were reasonably determined. The optimal design result on the 5 ton stamping hammer demonstrates that with optimizing the parameters, the vibration transfer ratio decreases by 25.29%. The damping in the vibration becomes much more quick and smooth.
出处
《沈阳工业大学学报》
EI
CAS
2009年第5期540-543,572,共5页
Journal of Shenyang University of Technology
基金
教育部高等学校博士学科点专项科研基金资助项目(20060142002)
关键词
弹性基础
砧下直接隔振
隔振效果
序列二次规划法
优化设计
振动传递率
模锻锤
elastic foundation
direct vibration isolation for anvil block
quadratic programming
optimal design
vibration transfer ratio
isolation effect
sequential stamping hammer
