查询词典 jib boom

Though a wellpreserved man of no little stamina, if a trifle prone to baldness, there was something spurious in the cut of his jib that suggested a jail delivery and it required no violent stretch of imagination to associate such a weirdlooking specimen with the oakum and treadmill fraternity.

此人虽然已经有点儿歇顶了，却保养有方，精力充沛；但是神情有些诡谲，令人想到会不会是个刑满出狱者。用不着费多大脑筋就能把这样一个看来怪诞不经的人物跟拆麻絮或踏车联系起来。说不定杀死那个对手的就是他本人哩。

For portal cranes, jib crane system is the main one of the bearing components. mechanical properties of the normal functioning unit has a direct impact.

对于门座起重机而言，臂架系统是起重机主要的承载部件之一，其力学性能对整机的正常运转有着直接影响。

Designed with a 5-1 factor making the ITNAC Articulating Jib Crane perfect for heavy duty applications.

设计使得ITNAC的链接式挺杆起重机更适合重型机械应用领域。

And also this paper deduced load of tower crane jib according a typical tower crane operating cycle.

通过雨流计数法统计了危险截面应力—时间历程中应力幅和循环次数，根据应力幅和循环次数利用数理统计方法假定了吊臂钢结构在工作过程中的应力幅分布服从对数正态分布，最后通过检验母体是否服从某种分布的

Based on ANSYS, this paper obtains some useful conclusion about parametric modeling in structure finite element analysis and its dynamic response analysis for the study of jib structure of MQ518 crane.

本文以ANSYS为平台，以MQ518门座起重机臂架结构为研究对象，获得了该结构的有限元模型及其动态响应，得到了一些有用的结论。

Fuzzy Reliability Analysis of Railway Crane Telescopic Jib under Stochastic Load.

随机载荷作用下铁路起重机伸缩臂模糊可靠性分析。

Main contents:(1) The paper introduces the structure form of portal crane jib system and analyses the working principle, process, parameters affection of four—bar portal crane.

具体说来，本论文的主要内容有：(1)综合介绍了门座起重机臂架系统的结构形式，重点分析了四连杆门座起重机的工作原理，工作过程以及各参数对整机工作性能的影响。

In a word,virtual prototype study of double link jib system of portal crane is a trial that apply advanced design analysis, emulation techniques in design of portal crane and offers efficient tool and method to design portal crane that is economic, credible stable and high performance.

总之，门座起重机组合臂架系统的虚拟样机研究，是先进的设计、分析、仿真技术应用于门座起重机设计中的初步尝试，为起重机虚拟设计、动态设计和结构分仿真分析提供了有力的工具和实现方法。

Standard equipment includes: crane with telescopic jib that can lift a maximum load of 15 tons, front mounted stabilizing dozer blade, main and secondary winch.

标准配备包括：起重机，伸缩臂，可以解除最大载荷为15吨，正面安装稳定推土机刀片，主要和次要绞车。

Bottom slewing crane with luffing jib and tower without backstavs.

与俯仰运动三角帆的底下旋转没有backstavs的起重机和塔。

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。