查询词典 jib boom

This vehicle adopts Yiqi Jiefang CA5275JQZ special purpose chassis which has full-view driver's cab, high pressure electric spray engine ,Euro Ⅲ emission standards, fits the requirement of the national environment protect announcement the maximum lifting capacity is 20t, the minimum working range is 3.1m, the maximum height of main boom is 31.8m, the maximum lifting height of main and jib boom comes up to 39.2m, the length of all-extended boom is 31.4m,the turning radius is 3.62m and it can 3600rotate continuously .

最大起吊重量为20吨，最小作业幅度3.1米，主臂最大起升高度31.8 米，主臂加副臂最大起升高度达到39.2米，全伸臂长31.4米，回转半径3.62米，360度连续回转。2、采用一汽解放CA5275JQZ全景驾驶室汽车起重机专用底盘，高压共轨电喷发动机，欧Ⅲ排放标准，符合国家环保公告要求。

The medium-duty series products have three operating modes for selection: crane operation with main boom, crane operation with fixed fly jib and crane operation with luffing fly jib

中等吨位系列产品－具有主臂工况、固定副臂工况和塔式副臂工况三种工况。

According to practical work condition, section of a three segment hoist boom is self-determined with SECWRITE commands, then a finite element model is directly established in ANSYS environment with ANSYS finite element analysis software. Using Beam44 beam unit and node degree of freedom coupling technique to simulate connecting between each boom section and conduct finite element analysis, calculated result of stress deformation for the boom is obtained. The result from digital simulation is in relative coincidence with theoretical analytic result and the nonlinear decline occurrence in boom bending moment curve is explained.

以ANSYS有限元分析软件为工具，按吊臂实际工况，运用SECWRITE命令自定义三节吊臂截面直接在ANSYS环境下创建有限元模型，使用Beam44梁单元和节点自由度耦合技术模拟各节臂的连接，进行有限元分析，得到吊臂应力变形数值计算结果，数值模拟所得结果与理论解析解相吻合，解释吊臂弯矩图出现非线性下降的原因。

The invention includes a bridge, a bridge traveling mechanism, a crane trolley, a telescopic boom and a telescopic traveling mechanism; wherein the bridge traveling mechanism drives the bridge to travel longitudinally along the track on elevated beams on the two sides; the crane trolley travels laterally along the track on the bridge; the telescopic boom is arranged between the crane trolley and the bridge, the crane trolley travels laterally along the track on the telescopic boom; and the telescopic traveling mechanism drives the telescopic boom to travel laterally along the track on the bridge.

本发明包括桥架、桥架运行机构、起重小车、伸缩臂和伸缩运行机构；其中，所述桥架运行机构驱动所述桥架沿两侧的高架横梁上的轨道纵向运行；所述起重小车沿所述桥架上的轨道横向运行；所述伸缩臂设置在所述起重小车和所述桥架之间，所述起重小车沿所述伸缩臂上的轨道横向运行；所述伸缩运行机构驱动所述伸缩臂沿所述桥架上的轨道横向运行。

Main technical parameters: hydraulic crane system task is telescopic boom (telescopic range within 10m) luffing jib (boom to change the angle with the ground) 35 ° to 25 ° between.

主要技术参数：起重机液压系统的工作任务是起重臂伸缩（伸缩幅度在10m以内）起重臂变幅（改变起重臂与地面的夹角）35°到25°之间。

The three head sails comprise flying jib, inner jib and a Bentinck sail.

三个船首斜帆是由船首桅帆、内侧船首三角帆以及三角形大横帆构成。

One of two spar s or booms projecting from the side of a bowsprit for spreading the jib or flying - jib guys.

左右撑杆从船首斜桁侧边支出的两根圆杆或桅桁下的一根，用于展开三角帆或伸开三角帆的绳索

Her two masts leaned a trifle backward ;she carried brigantine, foresail, storm-jib and standing-jib, and was well rigged for running before the wind

船上有两只稍向后倾的大帆，此外还有后樯梯形帆，前中帆，前樯三角帆，外前帆和顶帆。

Her two masts leaned a trifle backward;she carried brigantine, foresail, storm-jib and standing-jib, and was well rigged for running before the wind

船上有两只稍向后倾的大帆，此外还有后樯梯形帆，前中帆，前樯三角帆，外前帆和顶帆。他们为一点小事争吵起来。

Her two masts leaned a trifle backward; she carried brigantine, foresail, storm-jib and standing-jib, and was well rigged for running before the wind; and she seemed capable of brisk speed, which, indeed, she had already proved by gaining several prizes in pilot-boat races.

唐卡德尔号上除了船主约翰·班斯比以外，还有四个船员。这些勇敢的海员们经常风雨无阻地到大海上去寻找海船，把它们领进港口，他们对于海上各处的情况都很熟悉。

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。