查询词典 Crane

Applying the software ADAMS for dynamic simulation and Pro/E for three-dimensional design creates the mechanical system of virtual prototyping model of the 200t crawler crane. The models of the drag bar, the spring backstop, the luffer rope and the crawler in the system are established well by ADAMS/View module. The dynamic simulation of the complete mechanical system is researched at series of work condition, which occurs possibly the crawler crane boom backward tipping as the crawler crane unloads suddenly.

本文应用虚拟样机技术动力学仿真软件ADAMS，结合三维实体设计软件Pro/E构建了200t履带起重机的虚拟样机机械系统模型，并利用ADAMS/View模块完善了系统中拉板、弹簧式防后倾装置、变幅钢丝绳和履带模型：研究了履带起重机突然卸载时可能发生臂架后倾的一系列工况下，整机机械系统模型的动力学仿真。

Through the contrast analysis of the level of cell, protein and DNA, combined with the application of cladistic taxonomy system and numencal classification system and all the result of classification such as geographical distribution and fossil information, it can be deduced that the relationship of phylogenetics of Chinese crane is the following: the related relationship among Red crowned Crane , Black-necked Crane G.

通过细胞水平，蛋白质水平以及基因水平的对比分析，并结全宏观性状的支序分析和数值分析，以及地理分布化石资料等多方面分类结果推断，中国鹤类的系统发育关系是：丹顶鹤、黑颈鹤、白枕鹤、赤颈鹤的亲缘关系较近，而与灰鹤、白头鹤、沙丘鹤的关系较远，与白鹤、蓑白鹤关系最远。

This paper fucuses on research about the methods of comprehensive evaluation for engineering crane according to studying the traits of the engineering crane, fuzzy math, grey theory, analytic hierarchy method and etc. The primary research contents and results are presented as follows:(1) Factors system of comprehensive evaluation for engineering crane is put forward.

本文在了解履带起重机、汽车起重机等工程起重机的特点、熟悉模糊数学、灰色理论、层次分析法等综合评价方法的基础上，进行了工程起重机综合评价方法的深入研究。

The main products: the national standard series of single, double-beam bridge crane, gantry crane, Elevator, the national standard DT-DY series of conveyor belt, screw conveyor, bucket elevator, rigid impeller feeder, the feeder disk Machine, grab, light crane, multi-purpose portal cranes, chain-Doumen Unloading machine, loading machines, Fudiao, chain-Doo Unloading, quay cranes port facilities and various large pieces of metal structures and other non-standard, widely used , Complete specifications.

国家标准系列单、双梁桥式起重机、门式起重机、电梯、国家标准系列DT型DY型胶带输送机、螺旋输送机、斗式提升机、刚性叶轮给料机、圆盘给料机、抓斗、轻型装卸桥、多用途门座起重机、链斗门式卸车机、装船机、浮吊、链斗卸车机、岸吊港口设备及各种大型非标准金属结构件等，用途广泛，规格齐全。

The thesis mainly includes: According to crane dynamic theory, established relevant dynamic model, and analyzed the dynamic properties of the bridge structure of the bridge crane, including the natural frequency, the model shape and the dynamic stress. A way to analyse the dynamic response of the bridge structure of the bridge crane which takes into account the dynamic properties of the steel rope pulley block has been explored successfully.

本文基于有限元理论和起重机动力学理论，以有限元分析软件ANSYS为平台，实现了计算机对钢丝绳系统和桥架的模态分析和瞬态动力学分析，得到的分析数据和结论对桥式起重机动态设计提供了有效的手段，论文主要内容包括：根据起重机动力学理论，建立了相关动力学模型，并对桥架结构进行动态性能分析（包括固有频率、振型以及动应力）的分析，探索出一种考虑钢丝绳滑轮组的动态特性在内的桥式起重机桥架结构动态应力分析的方法。

East brand products mainly single, double bridge, gantry crane; insulation bridge crane; explosion-proof bridge crane; wire rope electric hoist, and so on and accessories (wheels, of drum group, hook group, pulley blocks, Coupling), and other top-five 600 species.

东起牌产品主要是单、双梁桥、门式起重机；绝缘桥式起重机；防爆桥式起重机；钢丝绳电动葫芦等及配件（车轮组、卷筒组、吊钩组、滑轮组、联轴器）等五大类六百余种。

Wall crane is fixed to the wall cantilever crane, or may be along the wall or other support structure on the elevated track running cantilever crane.

壁上起重机是固定在墙壁上的悬臂起重机，或者可沿墙上或其他支承结构上的高架轨道运行的悬臂起重机。

The third chapter mainly focuses on the analyse the electric control of container tyre-crane, including the detailed analyse of working principle and condition from different aspect such as Gantry、Trolley、Hoist, bring forward the thought that the simulator should finish the same movement as container tyre-crane, meanwhile, get ready for distinguish the simulator and container tyre-crane.

最后整体介绍轮胎吊模拟器的各器件组成。第三章介绍集装箱轮胎吊及其电气控制，从大车、小车、起升等各机构进行详细分析集装箱轮胎吊的工况及工作原理，提出轮胎吊模拟器需要完成的与集装箱轮胎吊相一致的运动，并且为区分模拟器与轮胎吊做好准备。

The Yellow Crane Tower is the outside air swallowing Yunmeng 9 V to the ancient buildings at the Yellow Crane Tower in front of a stone, is a crane and a snake standing on a turtle's shell.

气吞云梦黄鹤楼是外五内九的古代建筑物，在黄鹤楼的前面有一个石雕，是一只仙鹤和一条蛇站在一只龟的壳上。

I heard the tour guide said, symbolizes the Yellow Crane Tower crane, snake symbolizes Snake Mountain is the Yellow Crane Tower is located in the mountains, symbolizes turtle Turtle Mountain Snake Mountain is the opposite hill.

我听导游说仙鹤寓意为黄鹤楼，蛇寓意为蛇山就是黄鹤楼坐落的山，龟寓意为龟山就是蛇山对面的那座山。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。