查询词典 vibration-proof

From the motion equation of the bar which vibrates one-dimensionally and longitudinally, the model of mechanical four-terminal network and the transfer equations are set up, and the natural frequency equation of coniform horn and the ratio of speed of vibration are derived.

从变截面杆作一维纵振动的运动方程出发，建立机械四端网络的数学模型及传输特性方程，导出了圆锥形变幅杆的频率方程和振速比。

YZT rubber vibration absorber(for electronic apparatus and instruments) is composed of steel plate with bolt on top and bottom,columniform and coniform rubber in the middle,which can be compressed and stretched.

YZT型橡胶隔振器是由配螺栓的上下钢板、中间圆柱形、圆锥形橡胶体承载，可压缩和伸长，具有结构简单、安装方便，耐酸碱、耐油、抗老化、耐温等性能，广泛应用于电子仪器、仪表、设备柜内，也可应用在风机、水泵、冷水机组和柴油机组等。

Based on the conjugate symmetric frequency spectrum of Complex Discrete Fourier Transformation and the conventional Real Discrete Fourier Transformation,a modified RDFT is implemented in Wiener filter to restore aerial images degraded by motion or vibration.

基于复数离散傅里叶变换频谱的共轭对称性，对传统的实数离散傅里叶变换做了改进，将改进后的RDFT算法用于维纳滤波器中来实现对运动模糊图像的恢复处理。

By the mobility matrix formula developed the power flow transmission path and the coupling between the paths was studied.The power flow by the wall transverse vibration and influence from connecting path's rigidity were analyzed quantitatively.

研究了齿轮箱不同的功率流传递路径及各路径之间的耦合特征，并对传递路径的柔性和引起箱体壁横向振动的功率流进行了定量分析。

Based on the equilibrium equation of an arch element the cubic nonlinear dynamic model with second order is established and the nonlinear differential dynamic system without constant term is obtained through a transfer process of T=U+b. Hence three fixed points and the homoclinic orbits are found. The critical condition of the chaotic vibration of the elastic arch is given by using the method of Melnikov function. The numerical results of the stationary and chaotic motion are given and discussed.

首先利用拱的单元平衡方程建立了拱的二阶三次非线性动力学模型；然后通过变换使方程转化为不含常数项的非线性微分动力系统，并由此得到无扰动系统的3个不动点与同宿轨道；再用Melnikov函数法给出了发生混沌的临界条件；最后给出了该系统出现定常运动和混沌运动的数值结果。

This dissertation first puts forward the model of driving force transformation which the contact region of stator and rotor is divided into three relative sliding areas such as braking—driving—braking by means of research on vibration characteristics of USM stator surface points and micro driving course to rotor, this model can explain variation regularity of USM load characteristics, moreover, simplified calculation formula of rotor driving force concerned with stator teeth is set up.

本文通过对行波超声马达定子表面各点的振动特性和定子对转子微观驱动过程的研究，首次提出将定子和转子接触区划分为制动区—驱动区—制动区三个相对滑动区的驱动力转换模型，这一模型能够解释超声马达负载特性变化规律，并建立了计及定子齿的转子驱动力计算简化公式，该式能应用于多于两个定子齿驱动的转子驱动力计算。

At firstly assuming shear modulus is linear along depth, introducing differentiating operator of structure and using the stochastic vibration theory of continuative linear system, this paper studies the dynamic response problem of non-homogenize site soil.

首先假定土层的剪切模量随深度线性变化，引入结构微分算子，利用连续线性系统的随机振动理论，研究了非均匀场地土层地震的动力反应问题。

Based on the modal superposition method and the exact solution of beam nature vibration, the motion equations of the simply supported and continuo...

基于模态叠加法和梁固有振动的精确解，建立了移动荷载作用下简支梁和连续梁的运动方程；利用样条最小二乘法逼近桥梁应变响应，由样条数值微分求得响应导数；再通过Tikhonov正则化方法结合奇异值分解技术得到了荷载识别的正则解。

For the damped vibration signal with continuous frequency ,this paper presents an accurate estimation method for small damping.

对具有连续频率成分的振动衰减信号，提出了一种小阻尼的精确识别方法。

The position of controlled structure was positively fed back to controller according to position measure and contraposition control, and position of controller was positively fed back to control structure to control the vibration of controlled structure.

将实际系统模型放置在仿真系统中进行半实物仿真控制。通过位置测量、对位控制，将受控结构位置正馈至控制器，再将控制器位置正馈给控制结构，控制受控结构的振动。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。