查询词典 joints

Light wood truss is composed of dimension lumber by metal plate connected joints,the metal plate joint can be a weak part in the truss,so its bearing capacity has a direct relation with the whole truss capacity.

轻型木桁架是轻型木结构中一种常见的结构形式，其节点一般由齿板钉接而成，而该齿板节点可能是桁架的薄弱环节，其承载力决定着整个桁架的承载能力，因此齿板连接承载力的确定十分重要。

If arch/high arc rubber joints are adapted (for six—angle bolt cannot pass through hole),double-head bolts shall be used and try to reduce spherical screw thread jut and avoid crushing balls expanding under pressure and prevent early damage of rubber.

5，当橡胶接头在水泵出口距离或开停频繁条件下作用时，为减少橡胶接头长度的拉伸和压缩过大给泵和管道带来的影响，应在法兰两端增加限位装置。

First, the theory of fretting wear and studies on fretting fatigue were introduced and the parametric method was used in the process of creating the model of dovetail joints in UG software. The elastic contact problem is analyzed in finite element method and is used to the parameters' distribution and contact stress of the joint are obtained on the base of ANSYS code. With the effect factor of load frequency, the prediction method of fretting fatigue life of dovetail joint under low and high/low cycle complex load is proposed. The proposed model and the approach were verified by experiments.

本文介绍了微动损伤的机理和微动疲劳寿命的研究方法；利用UG软件对燕尾榫联接结构创建了参数化实体模型；基于ANSYS软件平台求解弹性接触问题，获得了榫联接结构接触应力及接触状态量的分布；在已有微动疲劳寿命预测模型的基础上，引入载荷频率影响因子，对低周、高低周复合载荷作用下的燕尾榫联接结构进行了微动疲劳寿命的预测，与试验结果对比表明采用本文提出的方法预测榫联接结构的微动疲劳寿命是有效的。

The influence of different post weld heat treatment conditions on the microstructures and mechanical properties of friction welded joints between drill pipe DZ60 steel and its tie-in 40Cr steel has been discussed.

摘 要：首次采用摩擦焊接工艺对地质勘探用钻杆的管体与接头进行了焊接试验，探讨了不同的热处理工艺条件对DZ60钢钻杆管体与40Cr钢接头摩擦焊接头组织与性能的影响，并与采用热墩粗工艺生产的钻杆管体组织与性能进行了对比。

In order to ensure that initial roll movements of the vehicle are better controlled, the engineers implemented an improved rear anti-roll bar drop link with special low friction double ball joints.

它给人的印象是和路面紧密相连的，能很平滑和线性地把路面的感觉直观地传达给驾驶者，这样就提高了它在各种状况下的可预见性。

As the economic index of the ordinary long span solid abdomen type portal rigid frame will drop along with the span increasing, a new type of way is presented in this paper, which is fixing up horizontal prestressed cables at the joints between beams and columns.

本文针对普通大跨度实腹式门式刚架随着跨度的增大经济性指标下降的问题，采取另一种方法，在门式刚架的梁柱连接处布置水平预应力拉索。

By changing the dimension of the syphons with rotary joints and fine tuning the steam and condensate system , the drying capacity and production of paper machine can be improved greatly.

通过改变旋转接头虹吸器的尺寸和微调蒸汽冷凝水系统的配置，调整干燥部，以提高干燥部的烘干效率，并达到节能增产的效果。

Enterprises registered trademark "Chuangwei", the main production hardware fast joints, joint campaigns, the connector series, car care tools, blowing dust gun series, PE, PU, PVC pipe, such as wind series, pneumatic tools and accessories group sets of series And so on.

企业注册商标&创伟&，主要生产有五金快速接头、接头系列，连接器系列，汽保工具系列，吹尘枪系列，PE、PU、PVC等风管系列，气动工具组套及附件系列等等。

The roof with elastic rubber is no joints which could be expose in the air without protection.

产品为白色液体橡胶、现场浇筑后，形成一层白色或铝灰白色的弹性橡胶，该橡胶屋面无接缝。直接暴露于空气中，有强的抵抗紫外线能力。

Furthermore,there are a lot of joints around the tunnel adits,and they influence the stability of Fuxi Tunnel a lot.Its discussed too.

除此之外，隧道洞口节理极为发育，其对隧道稳定性影响甚大，文中对此亦予以论述。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。