查询词典 dynamic test

The dynamic performances of the II type and mainframe tripled frequency converter are researched, on the basis of which the experimental mode test of the II type tripled frequency converter is completed and the shell of the mainframe tripled frequency converter is optimized, which has laid the foundation for the following design and improvement.

本文主要针对Ⅱ型三倍频组件和主机三倍频组件的动态性能进行了研究，并在此基础上完成了Ⅱ型三倍频组件的实验模态测试和主机三倍频组件壳体的结构优化，为后续的设计和改进奠定了基础。

If the effective value of the test expression is true, the conditional expression ignores any dynamic errors encountered in the else-expression.

如果测试表达式的有效值为true，条件表达式忽略任何else表达式中遇到的动态错误。

And the computation of pseudo-random numbers was programmed by multiplying the congruent number with the APDL language used. Taking account of the effects of original errors resulting from manufacture and the different working conditions such as rotating speed and load on the dynamic property of a bearing, the K-S inspection was done to determine the distribution of the data resulting from the virtual test and, consequently, the reliability was calculated with respect to the fatigue failure of bearings.

在此基础上，运用APDL语言实现乘同余数法产生伪随机数的计算程序，综合考虑轴承原始制造误差以及转速、载荷等不同工况对轴承动态性能的影响，对轴承进行多次随机虚拟试验，运用K-S检验法确定所获得的实验数据分布，求取轴承疲劳失效的可靠度。

The key of longwall mining along strike safely and efficiently is efficacious controlling of surrounding rock, and the difficult points of surrounding rock controlling are dynamic stability of system "R-S-F" has be made clear by the facts from site test, experimental study and theoretical analysis, and three patterns may cause system "R-S-F" destabilization, such as dislocation, consequentiality and retrogradation among R, S and F in the process of longwall face advancing is put forward in the paper .

大倾角煤层走向长壁工作面开采方法与装备研究由于其矿压显现和围岩破断活动的复杂性而进展缓慢，较少见到国外主要产煤国家此方面的专门文献，我国目前的研究、试验与使用水平处于国际该领域的前沿。

The results are consistent with the test data and the dynamic analysis model is proved correct.

应用三维有限单元和导弹实体简化模型对一种战术导弹的结构振动特性进行分析，并运用ANSYS有限元分析程序，计算得到了"自由-固支"条件下，导弹竖立状态的固有模态，取得了与试验和数据基本一致的结果，证明了所建模型的正确性。

The results indicate that the dynamic shear rheological test helps to obtain the continuous relaxation time spectrum suitable for the research on the pavement performance of asphalt mixture.

结果表明，动态剪切流变试验能够有效获得连续松弛时间谱，连续松弛时间谱能够为沥青混合料的工程性能研究提供有利手段。

As a result, it shows thatthe static or dynamic subsystem optimum alone is not equal to the system optimum. Three initial value problems met in the optimal design of flying vehicle are studied andconclusions are derived that: orthogonal test method can be adopted to decide the initial valueof static optimization problem, some mathematical techniques can be used to deal with thecostate variables of Maximum Principle and decide the initial value of the costate variable,the indirect method can be used to get the analytical solution under ideal case to guide thechoice of the initial control curve in the direct method. With some numerical examples oftrajectory optimization, it shows that all these methods are useful not only in accelerating theconvergence but also in converging to the global optimum.

针对飞行器优化设计中的三种初始值问题进行了研究，以远程弹道导弹弹道的工程优化为例说明，对于静态优化问题，采用正交试验法选取初始值，不仅可以大大加快收敛的速度，而且更有可能收敛到全局最优解；以气动力辅助变轨问题为例说明，用共态变量的一阶泰勒级数展开可以解决极大值原理中共态变量初值难于确定的问题；以二级弹道导弹的主动段弹道优化为例说明，利用间接法在理想情况下得到的解析解来指导直接法初始控制曲线的选择，将大大有利于提高直接法的收敛速度。

By using SEM and contact angle analyzer, the surface properties were investigated. The blood-compatibilities were estimated by blood platelet adhesion and dynamic cruor time test.

运用扫描电子显微镜，接触角测量仪对其表面形貌和亲疏水性进行了表征，采用血小板粘附试验和动态凝血试验对涂层的血液相容性进行了评价。

Dynamic Mechanical Analysis was used to test the damping properties of materials.

采用动态粘弹谱仪对材料的阻尼性能进行了测试。

Purpose: To evaluate whether a single-breath hold and single-level test bolus-injection dynamic scanning was a good way of defining the portal contrast media peak time and its preliminary application with spiral CT portography.

目的 ：探讨一次屏气试验剂量团注单层动态扫描是否能很好确定门脉造影剂峰值及其在SCTP成像中的应用价值。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。