发动机曲轴混联式扭转减振器分析和设计.doc

摘要 发动机的扭转振动严重影响了整车的舒适性。本文基于多级并联和串联扭转减振器的设计背景，提出混联式曲轴扭转减振器的设计，对扭转减振器的优化方案做了介绍，建立了两种三级混联减振器的简化模型，运用MATLAB软件对其参数进行优化分析，并运用CATIA软件对其进行实体建模。分析完扭转减振器的优化参数，结果表明本研究成果对曲轴扭转减振器的设计有一定借鉴价值。 关键词：发动机振动；曲轴扭转减振器；混联；优化 Abstract The Torsional Vibration (TV) of engine seriously affects the comfort of vehicle. Based on the background of parallel and serial multi-stage torsion damper design, the hybrid design of crankshaft Torsional Vibration Absorber (TVA) is proposed. This paper describes the optimization program of the TVA and establishes two simplified models of hybrid tri-mode TVA. The paper analyzes the optimization parameters with MATLAB and modeling TVA with the CATIA. After analyzing optimization parameters of TVA, the result indicates that the conclusions of this paper have some reference value for the design of TVA. Keywords: engine vibration; torsional absorber; hybrid-mode; optimization. 目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc295845029 摘要 PAGEREF _Toc295845029 \h I HYPERLINK \l _Toc295845030 Abstract PAGEREF _Toc295845030 \h II HYPERLINK \l _Toc295845031 1 概述 PAGEREF _Toc295845031 \h 1 HYPERLINK \l _Toc295845032 1.1 课题背景 PAGEREF _Toc295845032 \h 1 HYPERLINK \l _Toc295845033 1.2 国内外现状 PAGEREF _Toc295845033 \h 2 HYPERLINK \l _Toc295845034 1.3 课题主要内容 PAGEREF _Toc295845034 \h 4 HYPERLINK \l _Toc295845035 2 扭转减振器介绍 PAGEREF _Toc295845035 \h 5 HYPERLINK \l _Toc295845036 2.1 扭转振动的控制方法 PAGEREF _Toc295845036 \h 5 HYPERLINK \l _Toc295845037 2.2 扭转减振器的种类 PAGEREF _Toc295845037 \h 6 HYPERLINK \l _Toc295845038 2.3 扭转减振器的结构 PAGEREF _Toc295845038 \h 8 HYPERLINK \l _Toc295845039 2.3.1 单级扭转减振器 PAGEREF _Toc295845039 \h 9 HYPERLINK \l _Toc295845040 2.3.2 多级并联式扭转减振器 PAGEREF _Toc295845040 \h 10 HYPERLINK \l _Toc295845041 2.3.3 多级串联式扭转减振器 PAGEREF _Toc295845041 \h 11 HYPERLINK \l _Toc295845042 2.3.4 硅油-橡胶复合式扭转减振器 PAGEREF _Toc295845042 \h 12 HYPERLINK \l _Toc295845043 2.3.5 弯扭复合式减振器 PAGEREF _Toc295845043 \h 13 HYPERLINK \l _Toc295845044 3 扭转减振器设计理论 PAGEREF _Toc