Flexible fixtures are usually used in vibration tests of large test items.
大型试件的振动试验通常采用的是柔性夹具。
A method of modal parameter identification using datas of random vibration tests is introduced.
文章介绍了利用随机振动的试验数据进行模态参数辨识的方法。
A new method is presented in this paper for the control of multi-shakers in random vibration tests.
为适应多振动台试验控制的需求，提出了一种新的多点随机振动实验控制方法。
Vibration tests carried out on the experimental converter have proved the validity of the vibration formula derived.
本文还进行了实验转炉的振动测试，验证了所推导的激振力公式的正确性。
The forced transverse vibration tests of a ship propeller shafting with a variety of propeller blades were carried out on a test bed.
本文论述了在试验台上进行的不同叶片数螺旋桨轴系横向受迫振动实验。
Carbon fiber, aluminum and steel components are assembled with a special high-precision process, which includes a series of vibration tests.
碳纤维、铝质和钢质的各种部件都是在高精准的生产过程中进行安装，还需经受各种震荡测试。
Temperature and vibration tests on the new hardware; and functionality tests of all the display-related software upgrades, including the new moving maps.
新硬件的温度和振动测试以及所有显示软件升级的功能测试，包括新移动地图。
Simultaneously, the sine sweep vibration tests are carried out to measure the vibration frequencies and amplitude which lead to operation failure of HDD.
同时进行了裸盘正弦扫频振动失效试验，准确测量了硬盘的振动失效频率点和振动幅值。
A set of experiments corresponding to different application areas are designed to test the system's performance and the outcome of vibration tests is given.
针对振动光纤传感器的不同应用领域，设计了一组实验对系统性能进行测试，并给出了振动测试的实验结果。
Compared with forced vibration tests, the ambient vibration test is more convenient and it has enough accuracy for the small amplitude response characteristics.
与强迫振动试验相比，环境振动试验比较简单、方便，所确定出的小振幅水平下的木塔结构动力特性具有足够的精度。
The main controller passed the electro-magnetic compatibility tests, high and low temperature tests and vibration tests and presented a normal working condition.
该主控制器通过电磁兼容测试、高低温及振动测试后，系统工作正常。
The vibration tests are made for SAM and DSAM, and the results demonstrate that both methods are insensitive to the displacement or vibration of the specimen surface.
对SAM和DSAM进行了样本表面的振动测试，结果表明，SAM和DSAM对样本面的位移或振动是不敏感的。
Vulnerable parts in tractor cab are found by using stress measurement, vibration tests and finite element approach, and verified by fatigue tests on vibration test table.
本文通过电测应力、振动测试及有限元计算找出驾驶室的薄弱环节，并在振动试验台上进行疲劳试验验证。
Vibration tests were done in order to verify the simulation results, finally the resonance frequency was detected and made a conclusion that the simulation result is right.
为了验证有限元法计算结果，又通过实地的振动试验，具体测出了横梁的共振频率，验证了有限元计算结果的正确性。
The noise and vibration tests show that this transitional curve is better than normal ones, which provides the reference for studying high performance rigid rotator model vane pump.
通过噪声和振动实验验证该定子过渡曲线优于目前刚性转子式叶片泵的过渡曲线，对研制高性能刚性转子式叶片泵结构理论有参考价值。
The experiments include modal tests, vibration tests by knocking, shaking table tests by inputting white-noises and seismic waves, and tests of cable forces and vibration frequencies.
进行了模态实验、敲击激振实验、白噪声和地震波输入的振动台实验，以及缆索拉力和振动频率的测试。
In June, a Crew Module Adapter (CMA) simulator arrived at NASA Glenn's Plum Brook Station for testing, including all-important acoustics and mechanical vibration tests to simulate launch conditions.
六月，一个乘员舱适配器(CMA)模拟器抵达nasa格伦的梅溪站进行检测，包括所有重要的声学和机械振动试验，模拟发射条件。
Based on the principle of equivalent mass, it tests the impelling vibration in sonic wave vibration system, introduces the experiment condition and process.
为此参照等效质量原理对声振系统进行了激振试验，并对试验条件和试验方法进行了介绍。
Calculation results indicate that tire vibration and noise can be predicted with actual excitation spectrum from tests according to the method presented in the paper.
计算结果表明，只要有通过试验获得的轮胎在滚动过程中所受到的真实激励谱，利用本文的方法即可对轮胎的振动噪声进行预报。
Vibration test system is essential to reliability tests in engineering development, qualification and production.
振动控制系统是研制、鉴定和生产可靠性试验必备的设备。
Peculiarities and mechanism of propeller singing are described based on results of acoustic measurements and vibration excitation tests of a Marine propeller.
本文根据某船螺旋桨的噪声测量和激振试验结果，描述了螺旋桨鸣音的特点和产生鸣音的机理。
This paper deals with the principle of the vibration pattern measurement, blade simulation tests in LABS and the application in power plants.
文章介绍了振型测量的基本原理、实验室模拟叶片试验以及在电厂的实际应用。
Researchers scanned their brains while doing touch-tests on their arms and feet, using two vibrating discs to stimulate both sides of the body while controlling for frequency and vibration.
研究者在对患者的上肢和下肢做触觉试验时扫描了大脑，试验是用两个振动的碟对双侧肢体同时进行一定频率和强度的刺激。
The road tests of the dump truck were carried out based on abnormal vibration of dump truck chassis.
针对某自卸汽车底盘在使用过程中出现的异常振动问题，进行了道路行驶试验研究。
In this paper, the effect of electromagnetic vibration and stirring on the fining of crystal grains and its mechanism are discussed based on the results from laboratory and industrial-scale tests.
本文在实验室和工业试验的基础上对电磁振动和电磁搅拌的晶粒细化机理和效果进行了探讨，并获得满意的晶粒细化效果和消除偏析的作用。
A turnable damping was designed, and based on these, the road tests were done, analytical study on vibration performances of passenger seat were carried out, and the results were accordant.
在可调减振器的设计基础上，分别对车辆阻尼优化前后进行了试验，分析了车身与驾驶员座椅处的振动特性，计算与试验基本吻合。
Simulated tests of vibration damage in apple transportation were performed by using vibration testing machines.
利用振动试验台，进行了苹果运输振动损伤的模拟试验。
The residual vibration fatigue life of TC4 plate blade subjected to Foreign Object Damaged (FOD) is investigated by means of eddy current excited vibration fatigue tests.
采用电磁涡流激振的振动疲劳试验，对TC4材料制成的平板叶片受外物损伤后的剩余振动疲劳寿命进行了研究。
On the basis of steady state tests, the vibration suppression of the rotor through the first two critical speeds has been done.
在稳态试验的基础上，对转子过前两阶临界转速的振动抑制进行了研究，并实施开环瞬态振动控制。
Dynamic characteristics tests show that the natural vibration period of steel frame can be prolonged with the reducing of connection rotation stiffness.
动力特性测试结果表明：随着节点转动刚度的减小，框架自振周期延长。
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