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PRO/E100T汽車起重機臂架結構設計及有限元分析+CAD圖紙

時間:2019-08-02 20:45來源:畢業論文
對臂架進行了有限元分析。采用PRO/E軟件繪制三維實體圖,并導入ANSYS軟件中,選擇實體單元:其材料的密度為7850Kg/m2,楊氏模量為2×1011Pa,泊松比為0.3;網格劃分時選擇中等密度形式

摘要我國正處在經濟發展的高峰期,經濟建設迅速發展,隨之帶動了基礎建設的腳步,使得社會對起重機械的需求很大,對其安全性、經濟性能等方面的要求越來越高。汽車起重機屬于臂架類型的起重機,機動性能很強,被廣泛應用于各種工程中。本課題主要研究100T重型汽車起重機。由于現在使用的起重機吊臂結構并未達到最優結果,材料也并未被充分利用,所以仍需要改進。在本次設計中,利用現代設計方法---有限元法,對吊臂結構進行有限元分析,來改進吊臂的結構,從而達到最優結構。37723
本次設計首先對臂架的工況和受力情況進行了分析,確定了起重機總體結構參數和材料:設計了臂架的組成部分和幾何尺寸:通過對臂架的受力分析確定了其截面的尺寸,并進行了強度和穩定性校核。
本課題對臂架進行了有限元分析。采用PRO/E軟件繪制三維實體圖,并導入ANSYS軟件中,選擇實體單元:其材料的密度為7850Kg/m2,楊氏模量為2×1011Pa,泊松比為0.3;網格劃分時選擇中等密度形式;分別在尾部和液壓缸支撐部位添加固定約束,在臂頭施加力載荷,側面加風載。分析結果表明,在二節臂的底部靠近基本臂的區域,應力比較集中,且超出了要求,因此對二節臂增加厚度。對改進后的臂架進行分析得到結果在應力和變形上滿足了要求。在結構設計和有限元靜力分析的基礎上,完成該型起重機相關裝配圖和主要零件圖。

源¥自%六^^維*論-文+網=www.aftnzs.live


畢業論文關鍵詞:汽車起重機;結構設計;有限元分析
 Abstract
  Our country is in the peak period of economic development.With the rapid development of economic construction,the government pays more attention to spurring the pace of infrastructure. the demand for heavy machinery in China is great,which makes the requirements of the safety and the economic performance higher and higher. Truck crane belongs to the boom type of crane and it’s mobile performance is very strong.which is widely used in various projects. This thesis mainly studies 100T heavy truck crane. As the crane boom structure is not the best result and the material is not used well, it still needs to be improved.. In this design, by the use of modern design method --- finite element method, the structure of the boom is analyzed to improve the structure of the boom and achieve the optimal structure.
  First, I analyze the arm frame of working condition and force situation to identify crane parameters and material of the overall structure ;I design the arm part and the geometric size; By analyzing force of the arm, I determine the size of the cross section of the arm frame and check the strength and stability .
  In the design,the finite element analysis of the boom is carried out.  Three-dimensional solid map draw by Use PRO/E software is imported to  ANSYS software .I select the entity unit:
The material has the material density for 7850Kg/m2, Young's modulus for 2×1011Pa and Poisson's ratio of 0.3; mesh selection of medium density form; respectively in the tail and hydraulic cylinder supporting parts to add fixed constraint, in the brachiocephalic applied load, and in side wind load. The results show that the stress concentration of the second arms is more concentrated than the requirements of the material. So the thickness of the second arms is increased. The analysis of the improved arm frame can meet the requirements in the stress and deformation. Based on the structural design and finite element analysis, the assembly drawings and the main parts of the crane are completed. 源¥自%六^^維*論-文+網=www.aftnzs.live
Keywords:truck crane;structure design;finite element analysis
目錄

摘要    2
第一章 緒論    4
1.1概論    4
1.2汽車起重機國內外發展狀況    4 PRO/E100T汽車起重機臂架結構設計及有限元分析+CAD圖紙:http://www.aftnzs.live/jixie/20190802/36563.html
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