摘要
经典隔振理论评价隔振效果常假定基础为绝对刚性,这在隔振效果评价和测量上带来了很大的问题,导致计算结果偏差很大.针对这一问题推导了柔性基础上的传递率计算公式,讨论了基础阻抗对隔振效果的影响.理论分析表明,柔性基础的基频和质量是影响隔振效果的最重要因素.
In evaluation of vibration isolation efficiency, the classical vibration isolation theory usually assumes the base to be absolutely rigid, which to some extent causes great problems in evaluating and measuring, and thus leads to great mistakes. Transmissibility formula is brought forward on the basis of flexible base, and the effect of base impedance on vibration isolation efficiency is discussed. Theoretical analysis shows that the basic frequency and the mass of flexible base are the most two important factors which influence the isolation efficiency.
出处
《海军工程大学学报》
CAS
2004年第4期102-104,共3页
Journal of Naval University of Engineering
关键词
基础阻抗
传递率
隔振
base impedance
transmissibility
vibration isolation
