vibration acceleration

Even though the adoption of MTMD can not improve the free vibration frequency of structure, after the adoption of MTMD, the maximum vibration acceleration of footbridge will not exceed 0.35m/ s2, which meet the requirements of vibration limit value specified by overseas regulations.

虽然采用MTMD并不能提高结构的自振频率，但采用MTMD后桥梁最大振动加速度不超过0.35m/s2，满足国外规范对人行桥振动限值的要求。

We apply advanced vibration testing system to do field test of the tunnel structures by testing Shanghai railway track and get the time-history response rule of track vibration acceleration, tunnel structure acceleration and velocity, displacement.

以上海轨道交通线路为测试对象，采用先进的振动测试系统对隧道结构的动力响应进行现场测试，获得轨道振动加速度、隧道结构加速度和速度、位移的时程响应规律。

It points out that in tunnel, the lateral vibration acceleration of the car body can reduce by about 30%.

指出在隧道内，车体的横向振动加速度可减少30%左右。

Through piping model test and pump unit trial it is shown that with the two types of isolating shims the vibration acceleration of the piping system can be reduced evidently.

经管路模型试验和水泵机组试验证明，这两种隔振垫可使管路系统振动加速度级明显下降。

Velocity-acceleration feedback control law of structural vibration systems

结构振动的速度加速度反馈控制律

Two types of signals-crankcase pressure signal and block vibration acceleration signal were considered to have the property of mutual complementarity. The signals could be used to identify the status of piston-cylinder-ring assembly, and several effective characteristic parameters of the signals were selected.

认为曲轴箱压力和机身振动加速度这两类信号具有互补性，可以用于识别活塞缸套活塞环组件工作状态，对其选取了几个有效的信号特征参数。

Pulse signals are found of the pressure, and the pulse strength undergoes subharmonic bifurcations controlled by the scaled vibration acceleration.

发现这种压力是脉冲式的，并表现出受振动加速度控制的倍周期分岔现象。

The speed test has train ride index and body vibration acceleration as the speed an important indicator to judge the requirements to achieve excellent standard.

提速试验将列车平稳性指标及车体振动加速度做为铁路提速重要指标来评判且要求达到优的标准。

The proposed control model provided continuous acceleration and avoided intense vibration in high speed NC machining.

该模型能保证高速运行过程中加速度的连续,使机床运行平稳,避免产生大的冲击.

by using this analysis system, the influence on capsizing stability of emu was studied from the different factors, such as weight of the vehicle, height of the barycentre, lateral vibration acceleration, curve radius, curve superelevation.

最后利用车辆倾覆稳定性分析系统研究了车体自重、重心高、横向振动加速度、曲线半径、曲线超高等因素对动车组倾覆稳定性的影响，并给出提高动车组抗倾覆性能的方法。

Environmental test methods have high and low temperature test, impact test, temperature resistant and corrosion test, test, test, and dustproof sealing test, vibration test, impulse hammer and crash test, transport test, constant acceleration test, life test ( durability).

环境试验方法有高低温试验、温度冲击试验、耐潮及防腐试验、防霉试验、防尘试验、密封试验、振动试验、冲击和碰撞试验、运输试验、恒加速试验、寿命（耐久性）试验等。

That fiberboards with smaller thickness have high vibration acceleration, acoustic reflex and acoustic radiation with high wastage of vibration energy.

厚度小的纤维板其振动加速度较大，声反射及声辐射能力均较强，但振动能量损耗较高。

It is found that the motion modes strongly depend on the bed thickness and vibration acceleration.

发现运动模式与颗粒床厚度及振动加速度有很强的依赖关系。

The car was controlled with a different speed at a constant speed in randomly generated Class B road to test the vibration acceleration by the road roughness in driver seat.

在随机生成的B级路面上使该车以不同的车速匀速行驶，测试驾驶员座椅处的由路面不平度传递来的振动加速度。

Analytical results indicate that moving velocity and acceleration of motion platform are smooth, vibration of parallel mechanism is small and propellent machining can be accomplished.

分析结果表明，在给定轨迹下，并联机构动平台中心的速度和加速度变化平稳，产生的振动很小，可以完成药柱整形加工。

Abundant aircrafts such as missile, airplane often have to be worked in wretched conditions like vibration, linear acceleration, temperature and noise.

飞机、导弹等飞行器在其使用过程中会遇到振动、线加速度、温度、噪声等恶劣的环境。

Analysis Method for Vibration Acceleration of Electromagnetic Relay

电磁继电器触簧系统振动加速度的分析方法

A lot of test re sults dis play that vibration acceleration of motor and force of gear box bar exceed enormously the original normal, which is the radical reason.

大量的试验结果表明电机的振动加速度和齿轮箱吊杆力都大大超过了原设计标准，这是产生裂纹的根本原因。

In the condition of two types of acceleration induced by the nuclear explosion, the isolation properties of double mass spring system are studied by the Runge Kutta method based on vibration dose value ( VDV) criterion.

根据振动剂量值（VDV）隔震标准，采用Runge-Kutta法研究了双层线性隔震系统在核爆炸产生的两类冲击震动作用下的隔震性能。

Space permitting, we can increase the Counterbalance reasonably to reduce effectively the bearing average load and the vibration average acceleration to improve the vibration conditions.

在空间允许的情况下合理加大平衡块可以有效地降低轴承平均负荷并可以减小机体平均振动加速度，使得整机振动情况得以改善。