摘要
提出了反共振频率灵敏度概念,阐述了对反共振频率进行修改的工程应用价值,将求反共振频率问题化为求实一般矩阵广义特征值问题,在此基础上推导出反共振频率的灵敏度计算公式,并提出用反振频率灵敏度分析理论对结构反共振频率进行修改的方法,算例证明该方法是切实可行的。
This paper introduces the concept of anti-resonance sensitivity and presents a new method for analysing the anti-resonance sensitivity.It also gives a procedure of structural dynamic optimization based on the method.The method can be used to reduce the local vibration of a structure by shifting anti-reso- nance frequencies to desired values.Two examples are provided to indicate the feasibility of the techniques.
出处
《振动工程学报》
EI
CSCD
1996年第1期9-15,共7页
Journal of Vibration Engineering
关键词
反共振频率
灵敏度
模态分析
结构振动
anti-resonance
sensitivity
structural dynamic
modification
modal analysis
optimization muthod
