1) constrained damping
约束阻尼
1.
The governing equations of a beam with electro-magnetic constrained damping layers(EMCLD)are derived based on Hamilton Principle and simulated,which indicates the control current and thickness of damping layer how to affect the control results,and verifies EMCLD with simply configuration,reasonable actuated manner and low energy consumption,to be effective for active vibration control.
结果表明电磁约束阻尼技术具有结构简单、作动方式合理、耗能低的优点,是一种有效的振动主动控制方式。
2.
The shear strains in visoelastic damping layers resulting from the attraction arrangement magnets at the constraining layers end are higher than that in the conventional passive constrained damping layer(PCLD).
采用在约束层端部上设置永磁体的新方法可使阻尼层获得比传统约束阻尼处理方法更高的剪应变 ,从而增强粘弹层的阻尼耗能。
2) damper restriction
阻尼约束
3) constrained damping layer
约束阻尼层
1.
Beam element model analysis of composite beam with constrained damping layer;
附加约束阻尼层的复合材料梁单元建模分析
2.
Secondly with non-damping layers,free damping layers and constrained damping layers,the oil pan noise radiation is analyzed.
对某柴油机的油底壳进行了模态试验、模态分析和谐响应分析,得到其振动响应特性的基础上,利用边界元方法对没有阻尼层结构、具有自由阻尼层结构和具有约束阻尼层结构的油底壳的声辐射特性进行了研究,得出了阻尼结构对改善油底壳的声辐射特性的一些规律。
3.
To cut down element number for modeling structure with constrained damping layer(CDL) in general FEM software,the whole element method is adopted to solve the extension,bending and torsion vibration of the hollow circular beam with CDL.
分析结果同三维有限元分析结果作了比较,证明了该方法的可行性,为圆形截面构件组成的刚架和桁架结构约束阻尼层振动抑制分析提供了简单的计算方法。
5) semi-damping enwrapped
半约束阻尼
1.
Oil pan shoulder function due to the uniqueness of oil cooling, so the oil pan was semi-damping enwrapped in the experimentation , The results showed a piece of sound power level lower 1.
由于油底壳担负着机油散热功能的特殊性,试验对油底壳采用半约束阻尼包裹处理,结果显示整机声功率级降低了1。
6) restricted damped beam
约束阻尼梁
1.
This paper discusses using restricted damped absorber in field of reducing vibration by method analysis and project application,and forom the view of power flow analysises the result of vibration reduction by using restricted damped beam has the ability of reducing vibration and absorbing energy with wide frequency band and high effect.
本文通过理论分析和工程应用讨论了利用约束阻尼梁作为波导吸振器 ,在减振方面的应用 ,并从能量流的角度分析约束阻尼梁用于减振的效果。
补充资料:单位阻尼能
分子式:
CAS号:
性质:变形周期中损失的能量与材料体积之比。亦称之为单位阻尼能。高分子材料具有黏弹性,发生变形时不是完全的弹性变形,而伴随着发生塑性变形。在发生塑性变形时,由于分子间或晶面间的滑移,摩擦生热等耗去了能量,因此不能使原加的能量完全以形变能贮存,并在恢复过程中释放。失去的那部分能量就属于能量损耗。正确了解这一点,就可以根据不同用途来进行选材,也对新材料的研究起指导作用。
CAS号:
性质:变形周期中损失的能量与材料体积之比。亦称之为单位阻尼能。高分子材料具有黏弹性,发生变形时不是完全的弹性变形,而伴随着发生塑性变形。在发生塑性变形时,由于分子间或晶面间的滑移,摩擦生热等耗去了能量,因此不能使原加的能量完全以形变能贮存,并在恢复过程中释放。失去的那部分能量就属于能量损耗。正确了解这一点,就可以根据不同用途来进行选材,也对新材料的研究起指导作用。
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参考词条