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Development of Gyroscopic Damper for Vibration Control

用于振动控制的陀螺仪阻尼器的开发

基本信息

批准号：
08555058
负责人：
MATSUHISA Hiroshi
金额：
$ 6.59万
依托单位：
Kyoto University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08555058/
关键词：
Vibration Control Dynamic Dapper Passive Gyroscopic Damper Ropeway Carrier Cable Suspended Structure Wind Induced Vibration Gimbal damper ロープウェイ搬器ジャイロ制振索道搬器風励振受動制振

项目摘要

Ropeway carrier does not have AC power supply, the passive gyroscopic damper was investigated in this research. The gimbal is supported by a rotary spring and a rotary damper. The precession of the gimbal is caused by a rolling of the main system and it yield a moment to supress the rolling of the main system. Since this passive gyroscopic damper does not consume much energy and is light, it is suitable for a ropeway carrier. The investigators have developed the passive gyroscopic damper and made research on the optimum design methods, the maximumstability theory, the fixed points theory, the minimum variance criteria, the numerical optimization under random excitation, the accelerance minimization, the genetic algorism, the stability degree maximization. The passive gyroscopic dampers were constructed. The weight of rotor was 30kg, rotational speed was 3000rpm, damping was given by viscosity of silicon oil. The basic test was carried out with a seesaw-type test bench and good result was obtained. Two gyroscopic damper were set on a real gondola for 31 passengers whose weight was 2000kg and natural period was 3.5s. The natural frequency and the damping coefficient of the gyroscopic damper were tuned precisely. The step response with the initial angle of 3 and 5 degrees was measured. The swing of gondola decreased remarkably and stopped in several periods, 30 seconds. This research showed that the passive gyroscopic damper is one of suitable devices for structures which have rotational vibration such as a gondola and a ship.

针对索道载体无交流电源的情况，本文对被动陀螺阻尼器进行了研究。万向节由旋转弹簧和旋转阻尼器支撑。框架的进动是由主系统的横摇引起的，框架产生一个力矩来抑制主系统的横摇。由于这种被动陀螺阻尼器不消耗太多的能量，并且重量轻，因此它适合于索道载体。研究人员研制了被动陀螺阻尼器，并对被动陀螺阻尼器的优化设计方法、最大稳定性理论、不动点理论、最小方差准则、随机激励下的数值优化、加速度最小化、遗传算法、稳定度最大化进行了研究。构造了被动陀螺阻尼器。转子重量为30kg，转速为3000rpm，阻尼由硅油的粘度提供。在跷跷板试验台上进行了基础试验，取得了良好的效果。在真实的敞车上安装了两个陀螺阻尼器，该敞车可容纳31名乘客，重量为2000 kg，固有周期为3.5 s。对陀螺阻尼器的固有频率和阻尼系数进行了精确调谐。测量了初始角度为3度和5度的阶跃响应。吊篮的摆动明显减小，并在30秒的几个周期内停止。研究表明，被动陀螺阻尼器是一种适用于具有旋转振动的结构，如吊舱和船舶的设备。