双离合器双液力变矩器柔性飞轮的特性研究

发布时间：2018-06-05 17:36

本文选题：飞轮 + 有限元方法　；参考：《重庆大学》2012年硕士论文

【摘要】：双离合器双液力变矩器两体式柔性飞轮是一种采用两个挠性体结构的新型飞轮，以解决传统一体式挠性盘飞轮存在的易产生裂纹、变形、破碎等缺陷，且对于降低整车传动的横向（轴向）振动、缓解传动系的冲击等方面都发挥着非常良好效果，其设计的合理性直接影响到汽车的舒适性和零部件工作的可靠性，因此，双离合器双液力变矩器柔性飞轮的特性研究具有重要的意义。论文对双离合器双液力变矩器两体式柔性飞轮的国内外发展现状及发展趋势进行了研究，对两体式柔性飞轮的关键部件进行校核计算，进一步利用有限元分析技术对柔性飞轮的设计问题展开了研究，提出并探讨了基于理论计算和有限元分析的双离合器双液力变矩器柔性飞轮的设计与优化的方法和模式，同时应用此方法和模式对某公司的一款双离合器双液力变矩器两体式柔性飞轮进行了具体的分析、设计和优化，并对结果进行了试验验证，为该类产品的设计提供了可行的设计与分析方法的依据。论文的主要研究内容包括一下几个部分： ①对双离合器双液力变矩器柔性飞轮关键部件，如起动齿圈、圆柱直齿渐开线花键、螺栓等进行了理论分析，关键部分的强度都符合设计要求。 ②为验证双离合器双液力变矩器柔性飞轮的结构设计的合理性，以及探讨柔性盘对整体飞轮的减振作用。应用Pro/Engineer软件建立了双离合器、双液力变矩器柔性飞轮的三维实体模型，在此基础上利用ANSYS Workbench软件对一体式飞轮和两体式飞轮总成分别进行了结构强度应力分析、模态分析和谐响应分析，确定两体式飞轮总成的优势。 ③挠性板是飞轮总成中的重要部件，其轴向刚度直接影响飞轮的轴向减振特性，在满足刚度和强度的条件下，应使挠性板具有一定的轴向柔性而总成的轴向振幅较小，通过改变挠性板的外部型线，利用ANSYS Workbench软件对曲线进行分析，获得具有“理想特性”的结构型线，实现所要求的动力学特性，并经试验验证其分析方法的正确性和产品结构的合理性。 ④针对新型设计开发windows环境下的双离合器双液力变矩器两体式柔性飞轮计算机辅助设计软件系统，所开发双离合器双液力变矩器两体式柔性飞轮的软件系统已被企业所验收，，并应用于生产设计。论文所优化后的双离合器双液力变矩器两体式柔性飞轮，结构新颖，是一种既满足强度条件又满足动力学特性的结构形式，相对于传动一体式飞轮与优化前的两体式飞轮，新型的双离合器双液力变矩器两体式柔性飞轮具有更好的减振效果。
[Abstract]:The double clutch and double hydraulic torque converter two type flexible flywheel is a new type of flywheel with two flexible body structures to solve the defects of the traditional one type flexible disc flywheel, which can easily produce cracks, deformation and breakage. It also plays a very good role in reducing the transverse (axial) vibration of the vehicle transmission and alleviating the impact of the transmission system. As a result, the rationality of the design directly affects the comfort of the automobile and the reliability of the work of the parts. Therefore, it is of great significance to study the characteristics of the flexible flywheel in the dual clutch and dual hydraulic torque converter.
The development status and development trend of the two type flexible flywheel with double clutch and dual hydraulic torque converter are studied in this paper. The key parts of the two type flexible flywheel are checked and calculated. The design of the flexible flywheel is further studied by using the finite element analysis technique, and the theoretical calculation and the discussion are made and discussed. The method and model of the design and optimization of a dual clutch dual hydraulic torque converter with double clutch and dual hydraulic torque converter are analyzed. At the same time, the method and mode are used to analyze, design and optimize a dual clutch and dual hydraulic torque converter two type flexible flywheel in a company, and the results are tested and verified for the design of this kind of product. It provides a basis for feasible design and analysis methods. The main contents of the paper include several parts:
The key parts of the dual clutch dual hydraulic torque converter flexible flywheel, such as the starting ring, the involute spline of cylindrical straight tooth, bolt and so on, are analyzed theoretically. The strength of the key part is in accordance with the design requirements.
In order to verify the rationality of the structure design of the flexible flywheel with double clutch and double torque converter, and to discuss the vibration damping effect of the flexible disk on the whole flywheel, the three-dimensional solid model of the dual clutch and dual hydraulic torque converter flexible flywheel is established by using Pro/Engineer software, and on this basis, the ANSYS Workbench software is used for the integrated flywheel and two. The body flywheel assembly has carried out structural stress analysis, modal analysis and harmonic response analysis to determine the advantages of the two body flywheel assembly.
The flexible plate is an important part of the flywheel assembly. Its axial stiffness directly affects the axial vibration damping characteristics of the flywheel. Under the conditions of rigidity and strength, the flexible plate should have a certain axial flexibility and the axial amplitude of the assembly is small. By changing the external line of the flexible plate, the ANSYS Workbench software is used to analyze the curve. A structural line with "ideal characteristics" is obtained to achieve the required dynamic characteristics, and the correctness of the analytical method and the rationality of the product structure are verified by experiments.
In view of the new design and development of the dual clutch dual hydraulic torque converter two type flexible flywheel computer aided design software system under the environment of windows, the software system of the dual clutch dual hydraulic torque converter two type flexible flywheel has been accepted by the enterprise and applied to the production design.
The structure of the two body flexible flywheel with dual clutch and dual hydraulic torque converter is novel. It is a structural form which satisfies both the strength and the dynamic characteristics. Compared with the transmission wheel and the two type flywheel before the optimization, the new dual clutch dual hydraulic torque converter two type flexible flywheel has better vibration damping. Effect.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH133.7

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