查询词典 vibration-proof

The field experiment results indicated that the operating reliability of seed filling of the improved dibbler has been greatly enhanced, and the problem of cavity rate caused by vibration and block was effectively solved.

田间试验表明，改进后穴播轮的充种可靠性能明显增强，有效地解决了由于振动脱落种子和落种卡滞而造成的空穴问题。

The infrared dichroism of a particular vibration of known origin has been used to give valuable information about molecular orientation.

已知基因特有振动频带的红外二色性，可以提供分子定向的有价值资料。

The Fe57-xCo18Nb4Al2Si4B15Smx(x=0-3) amorphous alloy ribbons were prepared byvacuum arc melting and melt spinning. The influences of Sm addition on the glass forming ability, thermal stability, crystallization behavior and magnetic properties of Fe57-xCo18Nb4Al2Si4B15Smx amorphous alloys were studied by X-ray diffraction, differential thermal analyzer and vibration sample magnetometer survey.

摘 要：采用真空电弧熔炼和真空熔融甩带法制备Fe57-xCo18Nb4Al2Si4B15Smx(x=0~3)非晶合金，借助X射线衍射、差热分析以及振动样品磁强计等手段研究稀土元素Sm对制备合金的非晶形成能力、非晶热稳定性、非晶晶化行为以及磁性能的影响。

The unified differential equation of structure vibration and control systems is studied in the paper.

本文研究了结构振动及其控制系统差分方程统一模式的建立问题。

The main contents include: Setting up a theoretic vibration decreasing model of ERSFD and deriving its differential equation; Analyzing and comparing the features of ERSFD, SFD and Porous Squeeze Film Damper , and finding out that SFD and PSFD are the special examples of ERSFD; Giving an over-relaxation differential algorithm for the solution of the oil film force of ERSFD; Deriving the differential equations of the elastic ring deformation with and without tension and solution method.

给出了求解ERSFD油膜力的超松驰差分迭代格式和算法。

The shroud dry friction damping factor is a dimensionless quantity which can be defined as the ratio of the sum of work done per cycle of vibration by all dry friction force at shroud interface to the peak strain energy of corresponding blades under the resonance condition.

干摩擦阻尼因子是一个无量纲量，它被定义为：在共振条件下，所有的凸肩干摩擦力在振动一周内所做功之和与对应叶片系统峰值弹性变形能之比。

In this thesis, with the aid of the method of reconstructive direction cosine matrices of the analysis and synthesis of spatial mechanism, the more overall and systematic theoretical research is done about trident-bar universal joint and drawn some useful conclusions about kinematics analysis, dynamics analysis, kinematical precision analysis, vibration analysis, simulation and experimental results analysis, mechanism type selection analysis based method of fuzzy distinguishable pattern, integrated designing prototype system.

本文以改造的方向余弦矩阵为数学工具，以三叉式万向节为研究对象。进行了机构有关的解析求解、仿真和试验结果分析，基于模式识别技术的机构选型及机构的集成设计原型系统，得出了以下结论：(1)采用改造的方向余弦方法适用于空间机构的运动求解及动力求解。它的特点是解析明了，以矩阵方式体现，适合计算机求解。并以万向节为实例进行了万向节的详细的运动分析，建立了求解的各个变换矩阵，得出了机构的详细的运动关系。

This paper discusses the upper estimates of weighted eigenvalues for Dirichlet problem of membrane vibration.

考虑膜振动Dirichlet问题的带权特征值上界估计，利用试验函数、分部积分以及不等式估计等方法，建立了用前n个特征值来估计第n+1个特征值的上界估计，其估计系数与区域度量无关。

The steady-state response of discrete vibration equation group is obtained using Duhamel integral in setting excavation unloading path and zero initial condition.

在给定开挖卸荷路径和零初始条件下采用Duhamel积分，得到离散振动方程组的稳态响应。

In this thesis, the discreteness of bridge response excited by train will be analysed considering the relationship between system's input energy and vibration response.

本文从系统输入能量与振动响应的关系来分析桥梁车振响应的离散性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。