摘要
提出了线性动力吸振器的宽带数值优化设计 ,推广了前人在线性动力吸振器领域的研究。首先给出了抑振带宽新的定义 ,然后采用数值优化法详细地研究了线性动力吸振器的宽带优化设计 ,系统讨论了最优固有频率比、最优吸振器阻尼比、最大抑振频带和最大抑振带宽与质量比和主系统阻尼比的关系 ;最后针对具体的主系统 ,指出了线性动力吸振器的内在局限性。
Numerical optimal design for broadband limear dynamic absorber is presented. New definition of the suppression bandwidth is described firstly. Then broadband optimal design for linear dynamic absorber is investigated by use of numerical method. The effects of the mass ratio, main system damping ratio, absorber damping ration, natural frequency ratio and excitation frequency ratio on the suppression bandwidth are discussed systematically. Finally the limitation of effectiveness of the linear dynamic absorber is pointed out.
出处
《振动与冲击》
EI
CSCD
北大核心
2001年第2期16-18,共3页
Journal of Vibration and Shock
基金
船舶工业国防基础研究基金资助J40 .3 .1
