|
The vibration analysis of a coupled system composed of a beam and multiple degree of freedom (MDOF) subsystem is carried out, and the analytical expressions for harmonic responses as well as the natural characteristics of this kind of system are obtained
|
|
|
摘要采用递归方程方法，对梁－多自由度耦合系统的振动响应进行了分析，得到了该耦合系统在简谐激励作用下振动响应的解析表达式，在此基础上，仍应用递归方程方法对该耦合结构的固有特性进行分析，给出了固有频率及模态振型的公式。 |
|
The vibration characteristics testing is an important contents in assessing the bridge's present condition, through an example of a bridge's dynamic test, this paper applies MATLAB to analyze the test data in frequency domain, In the end, the results expr
|
|
|
摘要桥梁结构的自振特性测试是评定桥梁结构现状的一个重要内容，通过某大桥的动力特性测试实例，运用MATLAB语言编程对测试数据进行频域识别分析，分析结果表明这种分析方法是可行的，为以后进行桥梁结构检测的动力特性试验提供了依据。 |
|
The vibration fault diagnosis of hydro-turbine generating unit is investigated by the method of spectrum analysis and wavelet neural network classifier.
|
|
|
摘要提出应用频谱法和小波神经网络对水电机组的振动故障进行诊断。 |
|
The vibration of single cylinder and multi-cylinder engine is the main research, which is caused by the unbalance force and moment.
|
|
|
重点研究单缸发动机和单列多缸发动机的振动激励，即发动机运行时的不平衡力及力矩。 |
|
The vibration signal is decomposed into several intrinsic mode functions (IMFs) by EMD, and the fault information is extracted from the IMFs containing modulated signals, which then is effectively separated by EMD, thereby the signal to noise ratio (SNR)
|
|
|
首先，对复杂的振动信号进行经验模式分解，得到若干个基本模式分量，再对包含调制信号的基本式分量进行包络分析以提取故障信息。 |
|
The vibration strength training is a new type of strength training which gets more and more concerned by experts at home and abroad for effectively increase targeted muscle strength improve the character of flexor and extensor elevate balance capability b
|
|
|
摘要振动力量训练是一种新兴的力量训练方法，可根据专项动作的要求有效地增加目标肌肉力量、改善屈伸肌特性、提高平衡能力而受到越来越多的国内外专家关注。 |
|
The vibrator and frame are connected and fixed up and down with the buffer by six groups of soft rubber.
|
|
|
振动部与机体座有六组软橡减振器上下连接固定。 |
|
The vicar has been asked to have the tree cut down, but so far he has refused.
|
|
|
人们曾请求教区的牧师叫人把树砍掉，但他直到现在也没有同意。 |
|
The vicar preached a sermon on the importance of honesty.
|
|
|
教区牧师就诚实之重要性布道。 |
|
The vicar preached to the congregation for half an hour.
|
|
|
那位教区牧师向会众讲道半个小时. |
|
The vicars and lords and widows whose cordial yet machinating lives Trollope recounted seemed reasonably settled, yet being people they managed to muck things up.
|
|
|
在特罗洛普的笔下，那些牧师、贵族和寡妇们，对生活充满热情却又诡计多端。 |
