文档介绍：摘要
履带式起重机是工程起重机行业的一个重要门类,是现代工程建设施工中不可缺少的大型设备之一。臂架作为履带式起重机的主要承载结构件,尤其是在大吨位履带式起重机中,其设计和制造质量直接关系着起重机的整机安全性,因此设计研究履带式起重机臂架是十分必要的。
目前国内履带式起重机的开发能力、产品规模和质量都与国外有相当大的差距。长期以来,起重机设计多采用以古典力学与数学为基础的半理论半经验设计发法、模拟方法等。设计过程重复、周期长、精度低、消耗资金大、效率低,设计出的产品粗大笨拙,难以适应市场需求。现今采用现代设计方法,以ANSYS 软件为平台,完成产品的三维建模及有限元分析,弥补了传统设计方法的不足。
主要研究工作如下:
以传统设计方法为依据,进行履带式起重机臂架的设计计算。
根据臂架结构的受力特点,运用ANSYS建立有限元模型,进行相关的约束及加载。
利用ANSYS软件对臂架进行有限元静力分析,得到整个臂架的应力应变情况,并对其强度进行评定。
对传统设计方法手算得出的结果和现代设计方法ANSYS分析的结果进行比较,说明现代设计方法的优越性。
关键词: 履带式起重机,臂架结构,有限元法,ANSYS
ABSTRACT
Crawler crane is one of the necessary equipments and weightily type in project construction at hoist industry. As main bearing weight structure of the crawler crane, the design and manufacture quality for boom system are important influence to the safety of thewhole machine, especially in the great tonnage cranes. So the design and research of the boom of crawler crane is necessary.
The current domestic crawler cranes’development capabilities, product scale and quality products with foreign countries have a large gap. Crane used to design more classical mechanics and mathematical theory based on the semi-half experience in the design, simulation, etc. Repeat the design process, long cycle, precision low consumption of resources, low efficiency, product design to large clumsy, difficult to adapt to the market needs of the market. The current use of modern design, Ansys software as a platform plete the three-dimensional modeling products and finite element analysis, made up for the ings of traditional design methods.
Main research work are as follows:
The design and calculation of crawler crane based on the traditional design method.
Boom ANSYS software for finite element of static analysis, by the entire boom of the stress and strain the situation and evaluate their strength.
(3) Crane's jib is analyzed in theANSYS software system,obtain the static response results including static stress and simulation animation.
(4) The traditional design met