黑龙江工程学院本科生毕业设计
摘
要
本文以 4110 柴油机的相关参数作为参考， 对四缸柴油机的连杆进行了结构设计和 尺寸计算，并对连杆进行了运动学和动力学的理论分析，最后运用 Pro/E 进行三维建 模运用 ANSYS 进行了有限元分析。 首先，以运动学和动力学的理论知识为依据，对连杆的运动规律以及在运动中的 受力等问题进行详尽的分析，并得到了精确的分析结果，同时对连杆用材料进行了比 较与分析。其次分别对连杆大头、连杆杆身以及连杆小头进行结构设计及尺寸计算， 并进行了结构强度和刚度的校核。再次，应用 CAD 软件：Pro/E 软件建立了连杆的三 维几何模型，在此工作的基础上，又对静力作用下对连杆的两种特殊工况；拉伸、压 缩工况下进行了受力计算， 再将连杆三维几何模型导入 ANSYS 中对其进行了定义特性、 网格划分、施加约束和载荷，最后进行计算以达到对连杆进行强度校核的目的。
1.1 选题的目的和意义................................................................................................... 1 1.2 国内外的研究现状................................................................................................... 2 1.3 设计研究的主要内容................................................................................................ 4
Key words: Diesel engine；Connecting rod；Strength check；Pro/E；ANSYS
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黑龙江工程学.................................................................................................................................. Ⅰ Abstract............................................................................................................................. Ⅱ 第 1 章 绪 论................................................................................................................... 1
关键词：柴油机；连杆；强度校核；Pro/E；ANSYS
I
黑龙江工程学院本科生毕业设计
ABSTRACT
Taking 4110 as the reference parameters of the diesel engine, four-cylinder diesel engine connecting rod on the design and size were calculated, and linkage to the theory of kinematics and dynamics analysis, and finally the use of Pro / E for the use of ensional modeling ANSYS finite element analysis carried out. First, the theoretical knowledge of kinematics and dynamics based on the movement of connecting rod and the force in motion a detailed analysis of such issues and get accurate results, while the materials were used on the rod comparison and analysis. Followed by on the connecting rod, connecting rod shaft and the connecting rod small end and size of structural design calculations, and were checking the structural strength and stiffness. Again, application CAD software: Pro / E software to establish a link of three-dimensional geometric model, based on the work in this, but also on the static on the link under the two special conditions; tension, compression conditions were the force calculation, and then link into ANSYS three-dimensional geometric model is defined in its properties, meshing, impose constraints and loads, and finally calculated to achieve the purpose of checking the strength rod three-dim-