本文選題：碰撞阻尼 + 顆粒�。� 參考：《振動與沖擊》2017年13期

【摘要】：具有雙重減振結(jié)構(gòu)的帶彈性支撐的顆粒碰撞阻尼具有優(yōu)秀的減振性能。為了探索帶彈性支撐的顆粒碰撞阻尼的減振機(jī)理,建立了帶彈性支撐的顆粒碰撞阻尼系統(tǒng)的動力學(xué)模型,在Matlab環(huán)境下編制了仿真計算程序,模擬計算了在帶彈性支撐的顆粒碰撞阻尼作用下的懸臂梁的減振性能。理論計算結(jié)果與實(shí)驗(yàn)結(jié)果進(jìn)行比較,驗(yàn)證了提出的動力學(xué)模型。運(yùn)用該動力學(xué)模型討論了阻尼器腔體間隙比、沖擊器質(zhì)量比、剛度比的基本規(guī)律。得到了以下結(jié)論:(1)帶彈性支撐的顆粒碰撞阻尼系統(tǒng)的動力學(xué)模型是可靠的;(2)帶彈性支撐的顆粒碰撞阻尼具有優(yōu)秀的減振性能,遠(yuǎn)遠(yuǎn)超過單體碰撞阻尼;(3)帶彈性支撐的顆粒碰撞阻尼最優(yōu)的結(jié)構(gòu)參數(shù)組合(間隙比為0.15,剛度比為0.007)。
[Abstract]:Particle impact damping with elastic braces has excellent damping performance. In order to explore the damping mechanism of particle collision damping with elastic support, a dynamic model of particle impact damping system with elastic support was established. A simulation program was compiled under Matlab environment. The vibration absorption performance of cantilever beam under the action of particle impact damping with elastic support is simulated and calculated. The theoretical results are compared with the experimental results, and the proposed kinetic model is verified. Using the dynamic model, the basic laws of the damper cavity clearance ratio, impact mass ratio and stiffness ratio are discussed. The following conclusions are obtained: (1) the dynamic model of the particle impact damping system with elastic support is reliable and the particle impact damping with elastic support has excellent damping performance. The optimal structural parameter combination of particle impact damping with elastic support (clearance ratio is 0.15, stiffness ratio is 0.007).
【作者單位】： 上海理工大學(xué)醫(yī)療器械與食品學(xué)院;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51475308)
【分類號】：TB535.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 胡溧;唐U，

本文編號：2047297