QTZ40塔式起重機-塔身的優(yōu)化設計

資源目錄里展示的全都有，所見即所得。下載后全都有,請放心下載。原稿可自行編輯修改=【QQ：401339828 或11970985 有疑問可加】 摘要 本次設計在參照同類塔式起重機基礎上，對QTZ40型塔式起重機進行總體設計及塔身分析設計。在塔身設計工程中，采用了有限元法對其進行分析計算，采用了ANSYS10.0軟件進行分析。 按照整機主要性能參數(shù)，確定各機構類型及鋼結構型式，主要確定了塔身的結構參數(shù)，并按照風載荷平行于起重臂方向，風載荷與起重臂方向呈45度角時兩種工況分析。通過對塔身作適當?shù)暮喕瑧肁NSYS10.0軟件建立塔身的有限元模型，施加各工況載荷，進行求解，進而可得各工況下各節(jié)點受力情況及各單元所受軸向力、軸向應力大小及各工況下塔身的變形撓度大小，并能演示塔身加載過程的動畫，清晰的展現(xiàn)了各工況下塔身的受力性能。 本次設計分析通過修改模型參數(shù)共準備了三種不同方案，進而對不同模型方案進行分析比較。由比較不同模型在相同工況下的受力狀況及剛度狀況，綜合分析強度和剛度條件，可得出受力最為合理的一組模型參數(shù)，通過對此組參數(shù)下模型進行強度及剛度校核，進而獲得塔身的最終參數(shù)結果。 關鍵詞：QTZ40型塔式起重機 塔身 有限元分析 ANSYS10.0 Abstract Based on the design of the similar tower crane, this design is composed of the system design and the tower body design of the QTZ40 tower crane. In the tower body design progress, it has carried Finite Element Method on the analysis computation, and used ANSYS10.0 software. According to the entire machine main performance parameters, various organizations type and the steel structure pattern have been determined. And then, the parameter analysis is carried on two different operating modes which are composed of the direction of the wind load is parallel to the lazy arm and the direction of the wind load is at a 45 degrees angle with the lazy arm. Through the reasonable simplification of the tower body, the tower body finite element model is established by applying ANSYS12.0 software, and then it’s exerted various operating modes loads, and carried on the solution. Then ANSYS10.0 software can calculate various nodes stress situation, the axial stress various units receive, and the tower body distortion size under various operating modes. Also it can demonstrate the animation in the loads-carrying process on the tower body, which has clearly displayed the stress performance of the tower body under various operating modes. Through the revision of the model parameters, three different schemes have been prepared for the analysis comparison, which is carried on the different models. Because the stress condition and stiffness condition of different model are compared under the same operating mode, and a comprehensive analysis of the intensity and the stiffness condition is carried on, a most reasonable model parameter can be obtained. Through the intensity and the stiffness examination regarding this model, then the final parameter result of the tower body can be obtained. Key words: QTZ40 tower crane Tower body Finite element analysis ANSYS10.0 目錄 第1章 前言······················································1 1.1 塔式起重機概述··············································1 1.2 塔式起重機的發(fā)展情況········································1 1.3 塔式起重機的發(fā)展趨勢·······································3 第2章 總體設計··················································5 2.1 概述······················································· 5 2.2 確定總體設計方案············································5 2.2.1 金屬結構···············································5 2.2.2 工作機構···············································22 2.2.3 安全保護裝置···········································29 2.3 總體設計設計總則···········································32 2.3.1 整機工作級別 ··········································32 2.3.2 機構工作級別···········································32 2.3.3主要技術性能參數(shù)······································· 33 2.4 平衡重的計算···············································33 2.5 起重特性曲線···············································35 2.6 塔機風力計算·············································· 36 2.6.1 工作工況Ⅰ············································37 2.6.2 工作工況Ⅱ············································41 2.6.3 非工作工況Ⅲ···········································43 2.7整機的抗傾翻穩(wěn)定性·········································45 2.7.1工作工況Ⅰ············································46 2.7.2工作工況Ⅱ············································47 2.7.3非工作工況Ⅲ··········································49 2.7.4工作工況Ⅳ············································50 2.8固定基礎穩(wěn)定性計算·········································51 第3章 塔身的有限元分析設計···································53 3.1 塔身模型簡化···············································53 3.2 有限元分析計算·············································54 3.2.1 方案一···············································54 3.2.2 方案二··············································79 3.2.3 方案三··············································98 第4章 塔身的受力分析計算····································121 4.1 穩(wěn)定性校核················································121 4.2 塔身的剛度檢算············································122 4.3 塔身的強度校核············································124 4.4 鏈接套焊縫強度的計算······································125 4.5 塔身腹桿的計算············································126 4.6 高強度螺栓強度的計算······································127 第5章 畢業(yè)設計小結···········································129 致謝·····························································130 主要參考文獻····················································131