材料力学课程设计_7.7_曲柄轴的强度设计、疲劳强度校核及刚度计算11【完整版】(文档可以直接使用，也可根据实际需要修订后使用,可编辑放心下载）材料力学课程设计计算说明书设计题目：曲柄轴的强度设计、疲劳强度校核及刚度计算数据号：7.7-02学号：42100223姓名：刘风指导教师：魏媛目录一、设计目的··················································3二、设计任务和要求···········································32.1、设计计算说明书的要求···········································32.2、分析讨论及说明书局部的要求·····································42.3、程序计算局部的要求·············································4三、设计题目·····················································43.1、数据1〕画出曲柄轴的内力图··············································52〕设计主轴颈D和曲柄颈直径d·······································83〕校核曲柄臂的强度················································94〕校核主轴颈飞轮处的疲劳强度·································155〕用能量法计算A端截面的转角，·······························16四、分析讨论及必要说明······································20五、设计的改良措施及方法··································20六、设计体会····················································21七、参考文献···················································21附录一.流程图························································24二.C语言程序·····················································25计算输出结果··················································28一、设计目的本课程设计是在系统学完材料力学课程之后，结合工程实际中的问题，运用材料力学的根本理论和计算方法，独立地计算工程中的典型零部件，以到达综合利用材料力学知识解决工程实际问题的目的。同时，可以使学生将材料力学的理论和现代计算方法及手段融为一体，既从整体上掌握了根本理论和现代计算方法，又提高了分析问题、解决问题的能力；既是对以前所学知识〔高等数学、工程图学、理论力学、算法语言、计算机和材料力学等〕的综合运用，又为后续课程的学习打下根底，并初步掌握工程设计思路和设计方法，使实际工作能力有所提高。具体有一下六项：(1).使所学的材料力学知识系统化、完整化。(2).在系统全面复习的根底上，运用材料力学知识解决工程实际中的问题。(3).由于选题力求结合专业实际，因而课程设计可把材料力学与专业需要结合起来。(4).综合运用以前所学的各门课程的知识〔高等数学、工程图学、理论力学、算法语言、计算机等〕，使相关学科的知识有机地联系起来。(5).初步了解和掌握工程实际中的设计思路和设计方法。(6).为后续课程的教学打下根底。二、设计任务和要求参加设计者要系统复习材料力学课程的全部根本理论和方法，独立分析、判断设计题目的条件和所求问题，画出受力分析计算简图和内力图，列出理论依据并到处计算公式，独立编制计算机程序，通过计算机给出计算结果，并完成设计计算说明书。2.1设计计算说明书的要求设计计算说明书是该题目设计思路、设计方法和设计结果的说明，要求书写工整，语言简练，条理清晰、明确，表达完整。具体内容应包括：设计题目的条件、所求及零件图。画出结构的受力分析计算简图，按比例标明尺寸、载荷及支座等。静不定结构要画出所选择的根本静定系统及与之相应的全部求和过程。画出全部内力图，并标明可能的各危险截面。危险截面上各种应力的分布规律