摘要
研究了用粘弹阻尼器控制的弦系统的动态特性 ,将分布传递函数方法用于粘弹材料结构 ,给出了受粘弹阻尼器约束的轴向移动弦系统的传递函数。系统频率响应分析表明 ,由粘弹阻尼棒构成的阻尼器既能大大降低弦的振动幅值 ,又能够在较大的范围内调整系统的共振频率 ,从而使系统能更好地满足预定要求。
The dynamic behavior of an axially-travelling string system constrained by a viscoelastic material damper is studied. The damper is a viscoelastic material bar that is attached to the string at a point. The distributed transfer function method is applied to formulate the string-damper system. The frequency response of the constrained string indicates that the viscoelastic material damper can significantly reduce the vibration amplitudes, in the same time can also shift the resonance frequencies in a wider range.
出处
《振动工程学报》
EI
CSCD
北大核心
2001年第3期268-272,共5页
Journal of Vibration Engineering
