查询词典 joints

We can find the joints of the weakest stiffness and its directions by using the method of modified Guass elimination.

令每一个最弱劲度点的移动量为一单位，加上每支杆件长度不变的束制条件，得到对应的移动模态向量。

These self-priming pumps accommodate flow rates from 0.1 microliter to 350 gpm and are extremely durable, withstanding pressures up to 232 psi. There are no internal universal joints, valves, dead corners or glands to impede flow and these pumps are reversible for back flushing lines.

这些可自我启动的泵可用流是从0.1microliter到350gpm，非常持久耐用，可承受的压力可高达232psi，没有内在的万向街头，阀、死角和流通控制管，这些泵还可以逆转。

The main results of this study includes: 1 The stiffness and moment capacity of minor axis connected joints are related to displacement and failure mode of connection components.

弱轴顶底角钢连接作为一种典型的半刚性连接，具备良好的变形能力、一定的弯矩承载能力和钢材屈服后的塑性强化能力。

Use miter joints at the corners for a more finished look.

使用时的船闸人字缝了更多的外观。

Firstly, the 3D solid model of the analyzed object is built directly in the FEM software ANSYS 8.0 without using other CAD software. The influence of the side sizes of solid elements on computing results and the influence of coupling ways between different parts on the modal parameters are researched by simply modeling. And a new connecting method about joints in ANSYS is proposed and applied to finite element modeling of the test-bed for spindle system. Furthermore, several different computing techniques for modal parameters extraction are compared in solving the finite element model of spindle system test-bed. Many modal solutions are also done to achieve the relationships between the whole or part stiffness value and computed modal parameters. The laws about joint rigid parameters" influences on modal parameters are discussed by means of altering their values for conjoint parts. And by changing local rigid parameter values, the different location selections" influence on computed modal parameters is also studied.

本文通过使用ANSYS 8.0软件直接建立研究对象的实体结构模型，而没有借助其他的CAD软件；通过构建简单的模型研究实体单元边长大小对计算结果的影响，部件之间不同的联结方式对模态参数的影响，探讨在ANSYS中实现结合部的方法，提出一种新的联结方法，并建立主轴系统试验台的有限元模型；对建立的主轴系统试验台有限元模型求解，比较几种不同模态提取方法；通过改变结合部联结单元的刚度参数进行的计算，寻找联结刚度对模态参数变化的影响规律；改变局部联结单元的刚度参数，研究刚度值位置差异对计算模态参数的影响。

The calculation and tests of vibration strain mode on a frame structure model to detect the damage of joints are presented in this paper.

通过对某7层钢制框架结构节点损伤的数值模拟和模型试验，利用应变模态在结构损伤前后的相对变化进行框架结构节点损伤的诊断。

It was proved that they can all improve the monomial strength of the joints, and the range of augment was related to some geometrical parameters.

研究结果表明三种加强方式对于T形节点的单项承载力都有不同程度的提高作用，且提高幅度与几何参数有关。

Results from dimension optimizing of soldered joints show that the stress will decrease monotonously with the height of the soldered joint.

焊点优化结果显示，焊点高度对应的应力值曲线具有明显的单调递减特性。

The mortise and tenor joints unearthed here are present the earliest use of this type of joint in wooden structures in China.

遗址中发现的榫卯，是中国现已发现的古代木构建筑中最早的榫卯。

The mortise and tenor joints unearthed here are at present the earliest use of this type of joint in wooden structures in China.

遗址中发现的榫卯，是中国现已发现的古代木构建筑中最早的榫卯。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。