摘要
针对船舶轴系纵向振动控制展开研究。结合智能材料磁流变弹性体结构特点,提出一种新型动力吸振器结构--磁流变弹性体动力吸振器(MRE-DVA)—的思想,通过利用磁流变弹性体的刚度可调特性设计一种新型的宽频吸振器,实现变转速工况下对船舶轴系纵向振动的有效控制。加工相应的轴系半主动控制吸振器,并进行移频效应测试试验,验证利用磁流变弹性体流变特性设计动力吸振器的构想,从而为推进轴系的纵向振动控制提供理论和工程依据。
Longitudinal vibration control of ship propelling shaft system was studied. The idea of a new-type dynamic vibration absorber （DVA） was put forward based on the structural characteristics of the smart material of magneto- rheological elastomers （MILE）. A new-type broad frequency absorber was designed, employing the characteristic of stiffness adjustable of MRE material, to realize the effective control of the longitudinal vibration of the ship shafting system under variable operating conditions, A semi-active control absorber for the shaft system was processed, and the frequency shift effect was measured. The experiment results agree well with the theoretical analysis. This idea is verified. It is of directive significance for engineering design and application of the dynamic vibration absorbers.
出处
《噪声与振动控制》
CSCD
2015年第4期138-142,共5页
Noise and Vibration Control
关键词
振动与波
船舶推进轴系
磁流变弹性体
动力吸振器
移频效应试验
vibration and wave
propelling shaft system
magneto-rheological elastomers （MRE）
dynamic vibration absorber
frequency shift effect test
