阻尼作用

空气钻井中气体的密度小，阻尼作用小，导致钻柱在井下受力更加复杂。

The gas adopted in Air and Gas drilling has a low density and damping action , which led the drill string bear more complicated stress under well .

分析了汽封间隙对机组振动的阻尼作用及其阻尼系数与振幅的关系。

It is analyzed that clearance of gland seal has damping action to vibration of the unit , and relationship of amplitude and damping coefficient of them is analyzed .

Rayleigh阻尼作用下斜拉桥扭转振动

Torsional vibration of the obliquely straightened bridge under Rayleigh damping

分别对中性点直接接地系统和不直接接地系统的铁磁谐振现象进行分析，从理论上证明了PT的铁损对铁磁谐振的阻尼作用。

Based on equivalent model of PT , this paper analyzes the reduced equivalent circuits to the power system with earthed and non-earthed neutral respectively .

对激光与DNA分子相互作用的问题，着重考虑了随机力和阻尼作用，建立了DNA分子在激光作用下的Fokker－Planck方程（FPE）。

Fokker Planck equation ( FPE ) is built up , which is based on the study of DNA molecules in the action of laser , stochastics and damping .

自由Euler-Bernoulli梁在局部阻尼作用下的边界反馈稳定化

Stabilization of Euler-Bernoulli beam of free ends with locally distributed damping and boundary feedback

韧质材质的PVB膜对声波有很好的阻尼作用，使夹胶玻璃能有效阻挡声音的传播，明显的降低外界环境噪音。

Tough PVB film can well damp sound waves and enable insulated glass effectively hinder sound transmission and definitely lower environmental noise .

通过数值模拟，还观察到了在非零温时BEC和外部非凝聚气体相互作用对BEC振荡的阻尼作用。

The numerical simulation showed that the collective BEC oscillations are damped by the interaction of the BEC and the noncondensate Bose gas at a nonzero temperature .

环境阻尼作用下Kelvin-Voigt型输流曲管的混沌运动

The chaotic motions of a Kelvin - Voigt type curved pipe conveying fluid with environmental damping

结果表明：碰撞粘滞对波包的阻尼作用不容忽视，而非线性朗道（Landau）阻尼对波包的阻尼作用较弱。

The results show the effect of collision damping can not be neglected , whereas the nonlinear Landau damping is a weak effect compared with the collision one .

第四章，我们研究弱阻尼作用下非线性单原子链中的波动行为，首次在晶格动力学中得到了参数耗散型非线性Schrodinger方程oDNLS方程人以及阻尼对单原子链中孤立子的影响。

In chapter 4 , we investigated the behavior of wave in a nonlinear monatomic chain with damping . Parameter dissipation nonlinear Schrodinger ( PDNLS ) equation of lattice dynamics is first obtained . Then we discuss effect of damping on soliton of monatomic chain .

非线性阻尼作用时Ⅲ型断裂动力学的解析解

Analytical solution for mode ⅲ dynamic rupture subjected to nonlinear damping

弹簧振子在定常干摩擦阻尼作用下的振动

The oscillation of a spring oscillator under constant dry frictional damping

阻尼作用下带对称双阱势的原子链中的洞孤子

Hole Solitons in an Atomic Chain with Double-well Potentials Under Damping

阻尼作用下悬绳受迫振动的研究

A study of forced oscillations of suspended cord with damping

非绝热过程对噪声的传播能够产生显著的阻尼作用等等。

The propagation of noise can be damped , etc.

对于同一类土，饱和土体阻尼作用大于非饱和土体。

And damp in saturated soil was larger than that in unsaturated one .

复杂阻尼作用下结构风振的相似性分析

Similarity Analysis of Structural Wind Motion under Complex Damp

研究发现瑞利阻尼作用下的壁板颤振幅值和频率远小于无阻尼壁板颤振。

With Rayleigh damping on panel structures , flutter amplitude and frequency decrease rapidly .

伴随变阻尼作用的干摩擦下的车辆系统非线性动力学分析

Non linear Dynamics of Vehicle System with Piecewise Linear Viscous and Dry Friction Damping

阻尼作用下一维非线性单原子链中的孤子

Solitons in one-dimensional nonlinear monoatomic chain under damping

具有粘性阻尼作用的粘弹性直杆的纵向振动

Longitudinal Vibration of Viscoelastic Rod Viscously Damped In-span

叙述了空载灭磁阻尼作用对灭磁过程的影响。

This paper describes the effect of no-load deexcitation damping affect on deexcitation process .

粘性阻尼作用下粘弹性杆振动的定解问题

Initial boundary value problems which describe the vibrations of rods with viscoelasticity in viscose damping

非线性阻尼作用下标准线性固体粘弹性Ⅲ型破裂的解析解

Analytical Solution for Mode ⅱ Dynamic Rupture of Standard Linear Viscoelastic Solid With Nonlinear Damping

阻尼作用下一维体系热传导性质的研究

Heat conduction in one-dimensional systems with damping

挤压气膜阻尼作用研究

A study of air squeeze-film damping

同时说明主销后倾角对横摆角速度超调量有阻尼作用。

This also indicates some damping nature of caster angle with respect to yaw rate overshoot .

阻尼作用下的弦振动研究

Studies on damped oscillation of string

推导了加筋土挡墙在重复荷载和稳态阻尼作用下的竖向位移、速度、加速度振动方程。

The vibration equation of the reinforced earth wall under repeated load of train are also derived .