查询词典 vibration-proof

Finally, experiments and analyses in valve gear vibration and noise are conducted by means of the advanced measuring and processing instruments. Especially, the noise caused by valve setting is separated and analysed from the total noise, such work has never been done before. The conclusions are significant for reducing vibration and noise of valve gear.

本文使用目前国际上先进的测试、分析仪器对配气机构的振动、噪声进行了实验和分析，特别是在噪声分析上设法将气门的落座噪声分离出来，专门地进行了分析，这在配气机构的噪声分析上还是第一次，得到了一些有意义的结论，为配气机构的减振、降噪提供了依据。

Tractor and truck usually produces strong vibration when they are working,this vibration badly affects the driver's health and control stability.

工程车辆受行驶场地和工作路面的限制，通常在行驶过程中产生强烈的振动，严重影响着乘员的身体健康和操纵稳定性。

The flexible workpiece vibration modes are available for partitioning the distinct machining stages that denote the dynamic variation characteristics of the workpiece in the process and for selecting the high-order dynamic frequency modes that can produce the displacement at the tool-cutting position as the virtual vibration modes to predict the cutting stability.

根据薄壁零件的振型模态，划分表示工件在加工过程中动态特性变化的不同加工阶段、选取能够在刀具切削位置激起振动位移的高阶动态频响模型作为预测切削稳定性的有效振型。

The unique structure of bottom link swing arm suspension and double cylinder vibration damper, can efficiently avoid of vibration.

03的底部的链接摇臂悬挂和双缸减振器独特的结构，可以有效避免震动。

Based on the work principle of the speed reducer ,the paper studies the produced mechanism of the vibration signal,the fault forms and the different type of vibration caused by the faults.

文章以减速机工作原理为基础，研究了减速机振动信号产生的机理、减速机故障的形式，以及由于故障的不同引起的不同形式的振动，从减速机外部振动信号中获取故障特征信息，有效地实现了减速机的故障诊断。

In order to evaluate the injury caused by vibration, the packaged Malaysian carambola was vibrated by the electro-dynamic shaker as the trip from Tainan county to Taipei city. The simulation of random vibration controlled by random profile of a small-type agricultural transporter in the conditions of regular tire pressure, farm road, 400 kg loading and velocity at 8.5 km/h ran for 20 minutes. The following procedure was a 20-minute mountain road trip and a 4.5 hr-trip on high way. Finally, a 30-minute trip was on the urban road.

且以台南县楠西乡密枝村至台北果菜公司第一市场为例，以马来西亚种装箱杨桃进行模拟运输过程之随机振动，先经20分钟的第一运输阶段(小型农用搬运车，正常胎压、农路、2/3最大负载、速度8.5 km/h)进行模拟，接著20分钟山区道路，再以四个半小时的高速公路的路程，最后半个小时以市区与一般道路的随机控制曲线进行随机振动。

But because of its big slenderness ratio, smaller rigidity and damping, it is easy to cause a larger vibration in the windload and iceload function and so on, mast structure destruction accidents frequently occurred, has caused engineering and academic circles\\\s concern, this article summarizes the main structure damage diagnosis methods, carrys on preliminary dynamic analysis and the time-frequency distribution analysis with the vibration signal to the mast structure, and proposes the signal processing method is a appropriate method on the diagnosis to the mast damage.

但是，由于桅杆结构长细比很大，刚度、阻尼较小，在风荷载、裹冰荷载等作用下容易产生较大幅度的振动，桅杆结构的破坏事故时有发生，引起了工程界和学术界的重视，本文总结了几种主要的结构损伤诊断方法，并对桅杆结构进行了动力分析和振动信号时频分析，并提出信号处理的时频方法对桅杆损伤进行诊断比较合适的。

In the design and improvement section, took the three methods as follow: changed the section form of the beam, amended the fixing method of both side of the beam and design the dynamic vibration absorber according to the vibration theory to raise the working speed of the computerized embroidery machine.

改进设计部分，根据振动理论和建立有限元模型时的一些结论，通过改变横梁截面形状，修改横梁两端的固定方式，设计动力吸振器三个方面来实现减振，以达到提高电脑刺绣机工作转速的目的。

In chapter three, the passive vibration control of a smart cantilever beam with piezoelectric shunt damping system is studied theoretically. In this chapter, the mechanical impedance of piezoelectric shunt damping system is analyzed, and the parameters of the RLC piezoelectric shunt circuit are optimized via transfer function of the piezoelectric shunt damped beam in order to optimize the vibration damping effect.

第三章。研究了利用压电分流阻尼系统进行压电智能悬臂梁被动振动控制的方法，分析了压电分流阻尼系统的机械阻抗，并通过传递函数方法对RLC串联压电分流谐振电路元件的参数进行了优化，以使压电分流阻尼系统的阻尼效果达到最优。

Results vibration induced an average threshold shift of 40 db hl. in the cochlea measured immediately after vibration, the scala media showed uptake of gd-dtpa-bma, which indicated an increase in the permeability of the blood-labyrinth barrier.

结果 振动诱导平均听力损失40 db hl，在振动后立即测试的耳蜗中，其中阶摄取gd-dtpa-bma，提示血迷路屏障通透性增加。

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％。