【作者】 林亮；

【导师】 刘晓婷；

【作者基本信息】 长安大学 ， 机械制造及其自动化， 2010， 硕士

【摘要】 随着城镇化建设的快速发展,城市建筑向高大和多样性方向发展,高层建筑、体育场馆、机场候机楼、宾馆等建筑的内外立面和大堂空间结构安装、清洗、维护和装饰作业的需求越来越多,对适合于此类建筑物施工的设备需求量与日俱增。采用适合高大空间施工作业、移动方便的高空作业平台,可实现施工效率高、施工速度快、使用安全、节能环保等优势,是实现高大建筑空间施工作业要求的首选设备。伸缩臂是高空作业平台的重要承载部件之一,也是整机结构强度相对薄弱的部分,其力学性能对机械的正常运转有直接影响。本文依托国家科技支撑计划项目《无脚手架安装作业装备技术研究与产业化开发》(项目编号：2008BAJ09B07),结合Pro/E和大型有限元通用程序ANSYS建立伸缩臂结构的有限元模型,根据《起重机设计规范》对伸缩臂的载荷及约束进行简化处理,并对其结构进行了有限元结构分析,从而求得伸缩臂结构在几个典型工况下的静态变形和应力。根据分析结果,将伸缩臂结构重量最轻作为优化设计的目标,采用ANSYS的优化平台,提取截面特性,建立伸缩臂结构优化问题的数学模型,对其截面进行尺寸优化。针对该型高空作业平台的伸缩臂变幅铰点位置确定,依据多目标优化理论和理想点法,建立了变幅铰点优化的数学模型,并对其求解,得出优化结果。更多还原

【Abstract】 With the rapid development of urbanization, The urban architecture is to be more diversity and taller, For example, High-rise buildings, Stadiums, Airport terminals, Hotels, Structure installation, cleaning, maintenance and decoration operations of buildings within the facade and lobby space are increasing, which demand more and more the appropriate equipment for the construction of such buildings. Using the Aerial Work Platform which can fit for a large space and easily moving enable be high efficiency and speed of construction, safe, energy saving and environmental protection, the Aerial Work Platform is preferred device for the construction work of a large building space.Telescopic boom is one of an important bearing component in Aerial Work Platform, and also is relatively weak machine parts, whose mechanical properties has a direct impact on the normal operation of the machine. The subject Originates from the project" technology research and industrial development of without scaffolding installation equipment", which is supported by national Science and Technology (Item number:2008BAJ09B07)。The combination of Pro/E and ANSYS finite element program is to establish the finite element model of telescopic structure, the load and the constraints of the telescopic boom are simplified under the "Crane Design", and do the finite element structural analysis to telescopic boom, obtained static response in typical working conditions. Based on the results, the lightest weight of telescopic structure will design as the optimization objective using ANSYS optimization platform, Extracting feature section, establishing optimization mathematical model of telescopic structural, which are for optimal size of its cross section. For amplitude hinge-point of Aerial Work Platform, according to Multi-objective optimization theory and the ideal point method, It can establish optimization model and solve this model, geting the optimization results.更多还原