【摘要】 利用四端参数分析导纳功率流方法,研究板梁结构的振动功率流。由于梁和基础的弹性,输入系统和进入基础的功率流出现许多共振峰值,通过四端参数法的导纳功率流分析对比分析得到增大梁的弹性模量、梁高度,基础弹性模量、基础高度,以及减小隔振器刚度和损耗因子有利于减小进入基础的功率流。更多还原

【Abstract】 This thesis is to employ the four-end parameter analysis of admittance power flow to study the vibration power flow in the slab and beam structure.Due to the beam and the foundation elasticity,the input system and the power flow that enters the foundation appear many resonance peak values. The elastic modulus,the beam height,the foundation elastic modulus,and the foundation height of the enlarged beam as well as the decrease of the rigidity of the vibration isolator and the dissipation factor,obtained from the comparative analysis of the admittance power flow with four-end parameter analysis,can help subtract the power flow entering the foundation.更多还原