本文選題：參數(shù)化建模 + 接觸分析��； 參考：《東北大學》2012年碩士論文

【摘要】：本文首先從齒條加工齒輪的嚙合原理出發(fā),推導了漸開線斜齒圓柱齒輪的精確齒廓曲線,進而沿著螺旋線掃描得到漸開線斜齒圓柱齒輪模型,從而實現(xiàn)斜齒輪參數(shù)化建模。 以UG6.0為建模平臺,驗證了理論推導的齒廓曲線方程沿著螺旋線掃描生成的斜齒輪能實現(xiàn)參數(shù)化,將其各部件按照裝配關系集成齒輪嚙合系統(tǒng),并進行了運動仿真和干涉檢驗,符合實際要求。進一步利用UG表達式生成的EXP文件與VB接口,在VB環(huán)境下建立一個可視化齒輪模型界面,通過輸入不同基本參數(shù),快速生成新的齒輪模型,實現(xiàn)可視化的參數(shù)化斜齒輪建模。 鑒于漸開線斜齒輪嚙合過程中出現(xiàn)的偏載、應力集中等問題,應當對齒輪進行修形解決該問題。通過對齒輪修形方式及計算方法進行比較與分析,選擇了鼓形修形,推導出鼓形齒廓曲線和引導線方程,進而生成鼓形修形后的模型。以考慮歪斜度和輪齒變形為基礎,深入研究了齒輪嚙合軸平行度和軸承變形對輪齒嚙合接觸應力和彎曲應力的影響。 同時利用UG6.0與ANSYS13.0的無縫數(shù)據(jù)接口,將在UG6.0軟件中生成的裝配模型導入ANSYS workbench13.0中,利用ANSYS workbench13.0強大的分析功能,進行接觸應力和彎曲應力求解。分別進行了標準嚙合的理論計算與ANSYS分析數(shù)值的比較以及進行了修形前后的分析比較,并用ANSYS分析了基于齒輪不同軸線夾角和不同軸承跨度對齒輪嚙合影響的規(guī)律曲線,為對此進行相關生產(chǎn)和研究的人員提供一定的參考。
[Abstract]:In this paper, starting from the meshing principle of gear with rack, the accurate tooth profile curve of involute helical cylindrical gear is deduced, and then the involute helical gear model is obtained by scanning along the helical line, and the parametric modeling of involute helical gear is realized. With UG6.0 as the modeling platform, it is verified that the helical gear can be parameterized when the tooth profile equation is scanned along the helical line. The components of the helical gear are integrated into the gear meshing system according to the assembly relationship, and the motion simulation and interference test are carried out. In line with the actual requirements. Further, using the EXP file generated by UG expression and VB interface, a visual gear model interface is established in VB environment. By inputting different basic parameters, a new gear model is created quickly, and the visual parameterized helical gear modeling is realized. In view of the problems of eccentric load and stress concentration in the meshing process of involute helical gear, the gear should be modified to solve the problem. Through the comparison and analysis of gear modification methods, the drum profile modification is selected, and the drum profile curve and guide line equation are derived, and then the model after drum modification is generated. Based on the consideration of skew degree and gear tooth deformation, the effects of parallelism of gear meshing shaft and bearing deformation on meshing contact stress and bending stress of gear tooth are studied. At the same time, using the seamless data interface between UG6.0 and ANSYS13.0, the assembly model generated in UG6.0 software is imported into ANSYS workbench13.0, and the contact stress and bending stress are solved by using the powerful analysis function of ANSYS workbench13.0. The theoretical calculation of standard meshing is compared with that of ANSYS analysis, and the analysis and comparison before and after modification are carried out, and the law curve of gear meshing based on different axis angle and different bearing span is analyzed by ANSYS. For this related production and research personnel to provide a certain reference.
【學位授予單位】：東北大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TH132.413

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