机械设计与制造工程
機械設計與製造工程
궤계설계여제조공정
MACHINE DESIGN AND MANUFACTURING ENGINEERING
2014年
6期
61-64
,共4页
颗粒直径%颗粒阻尼器%减振性能
顆粒直徑%顆粒阻尼器%減振性能
과립직경%과립조니기%감진성능
Particle Diameter%Particle Damper%Damping Performance
通过试验,研究了颗粒直径的大小对颗粒阻尼器减振性能的影响。搭建了简支梁试验装置,将颗粒阻尼器安装在简支梁上,通过激振器给简支梁不同频率的正弦激振力,用加速度传感器测出了简支梁在不同频率振动下的加速度幅值。试验结果表明:在一阶固有频率时,颗粒阻尼器最大减振效果可以达到50.00%,但也会加剧振动;在其他频率时,最大减振效果可达到94.74%,也会加剧振动;颗粒阻尼器都对高频振动减振效果好。这为颗粒阻尼器减振机理的理论研究提供了依据。
通過試驗,研究瞭顆粒直徑的大小對顆粒阻尼器減振性能的影響。搭建瞭簡支樑試驗裝置,將顆粒阻尼器安裝在簡支樑上,通過激振器給簡支樑不同頻率的正絃激振力,用加速度傳感器測齣瞭簡支樑在不同頻率振動下的加速度幅值。試驗結果錶明:在一階固有頻率時,顆粒阻尼器最大減振效果可以達到50.00%,但也會加劇振動;在其他頻率時,最大減振效果可達到94.74%,也會加劇振動;顆粒阻尼器都對高頻振動減振效果好。這為顆粒阻尼器減振機理的理論研究提供瞭依據。
통과시험,연구료과립직경적대소대과립조니기감진성능적영향。탑건료간지량시험장치,장과립조니기안장재간지량상,통과격진기급간지량불동빈솔적정현격진력,용가속도전감기측출료간지량재불동빈솔진동하적가속도폭치。시험결과표명:재일계고유빈솔시,과립조니기최대감진효과가이체도50.00%,단야회가극진동;재기타빈솔시,최대감진효과가체도94.74%,야회가극진동;과립조니기도대고빈진동감진효과호。저위과립조니기감진궤리적이론연구제공료의거。
Taking experimental method , it studies the influence of particle diameter to the damping performance of particle damper .It builds a test device of a simply supported beam , which installes a particle damper in the simply supported beam , exerts sine excitation force of different frequency to the simply supported beam with vi-bration exciter , measures the acceleration amplitude of the simply supported beam under different frequency with an acceleration sensor .The result reveals that in the first -order inherent frequency , the maximum damping effect of particle damper can reach 50%, but also aggravate vibration;in other frequency , the maximum damp-ing effect of particle damper can reach 94.74%, but also aggravate vibration;the damping effect under high fre-quency is good .This provides basis for the theoretical study on the damping mechanism of particle damper .