? 本书是普通高等教育“十一五”国家级规划教材。第1版于2004年出版,是教育科学“十五”国家规划课题研究成果。本教材按高等学校工科本科工程力学课程中、少学时(48~96学时)的要求编写,涵盖了理论力学和材料力学的主要内容。本次修订内容包括:静力学中增加了空间力系及摩擦两章,原书第6章“内力和内力图”分别放在后面相关章节中叙述,对需要重点掌握的概念加了着重符号,以利于学生学习或教师使用。 全书共18章,包括静力学基础、平面汇交力系、力矩与平面力偶系、平面任意力系、摩擦、空间力系和重心、拉伸和压缩、扭转、弯曲、应力状态分析和强度理论、压杆的稳定性、点的运动、刚体的基本运动、点的复合运动、刚体的平面运动、质点的运动微分方程、动力学普遍定理、动静法。本书在叙述某些概念和方法的同时,给出了相关的思考题,可供课堂讨论之用。本书具有很强的教学适用性,有助于培养工程应用型人才。 本书可作为高等学校工科本科非机类及相关专业中、少学时工程力学课程的教材,也可供高职高专与成人高校师生、网络教育及有关工程技术人员参考。 本书配有电子教案。
?目录 第1章 静力学基础 §1-1 静力学的基本概念 §1-2 静力学公理 §1-3 约束和约束力 §1-4 物体受力分析和受力图 习题 第2章 平面汇交力系 §2-1 平面汇交力系合成与平衡的几何法 §2-2 平面汇交力系合成与平衡的解析法 习题 第3章 力矩与平面力偶系 §3-1 关于力矩的概念及其计算 §3-2 关于力偶的概念 §3-3 平面力偶系的合成与平衡 习题 第4章 平面任意力系 §4-1 力线平移定理 §4-2 平面任意力系向一点简化 §4-3 分布荷载 §4-4 平面任意力系的平衡条件 §4-5 平面平行力系的平衡条件 §4-6 物体系的平衡问题·静定与超静定的概念 §4-7 平面静定桁架的内力分析 习题 第5章 摩擦 §5-1 滑动摩擦 §5-2 考虑摩擦时的物体平衡问题 §5-3 滚动摩阻的概念 习题 第6章 空间力系和重心 §6-1 空间汇交力系的合成与平衡 §6-2 力对点之矩与力对轴之矩 §6-3 空间力偶系的合成与平衡 §6-4 空间任意力系的简化·主矢与主矩 §6-5 空间任意力系的平衡 §6-6 重心和形心的坐标公式 §6-7 确定重心和形心位置的具体方法 习题 第7章 拉伸和压缩 §7-1 轴力及轴力图 §7-2 横截面上的应力 §7-3 拉压杆的强度计算 §7-4 斜截面上的应力 §7-5 拉(压)杆的变形与位移 §7-6 拉(压)杆内的应变能 §7-7 低碳钢和铸铁受拉伸和压缩时的力学性能 §7-8 简单的拉、压超静定问题 §7-9 拉(压)杆接头的计算 习题 第8章 扭转 §8-1 扭矩和扭矩图 §8-2 薄壁圆筒扭转时的应力和变形 §8-3 圆杆扭转时的应力和变形 §8-4 受扭圆杆的强度条件及刚度条件 §8-5 等圆截面直杆在扭转时的应变能 §8-6 矩形截面杆的扭转 习题 第9章 弯曲 §9-1 剪力和弯矩·剪力图和弯矩图 §9-2 剪力图和弯矩图的进一步研究 §9-3 弯曲正应力 §9-4 惯性矩的平行移轴公式 §9-5 弯曲切应力 §9-6 梁的强度条件 §9-7 挠度和转角 §9-8 斜弯曲 §9-9 弯曲应变能 §9-10 超静定梁 习题 第10章 应力状态分析和强度理论 §10-1 概述 §10-2 平面应力状态分析 §10-3 平面应力状态下的胡克定律 §10-4 三向应力状态 §10-5 强度理论及其应用 习题 第11章 压杆的稳定性 §11-1 关于稳定性的概念 §11-2 细长中心压杆的临界荷载 §11-3 欧拉公式的适用范围·临界应力总图 §11-4 压杆的稳定条件和稳定性校核 习题 第12章 点的运动 §12-1 运动学的基本内容·参考系 §12-2 点的运动的矢量表示法 §12-3 点的运动的直角坐标表示法 §12-4 点的运动的自然表示法(弧坐标表示法) 习题 第13章 刚体的基本运动 §13-1 刚体的移动 §13-2 刚体的定轴转动 §13-3 转动刚体上点的速度和加速度 习题 第14章 点的复合运动 §14-1 绝对运动、相对运动和牵连运动 §14-2 点的速度合成定理 §14-3 牵连运动为移动时点的加速度合成定理 习题 第15章 刚体的平面运动 §15-1 刚体平面运动分解为移动和转动 §15-2 平面图形上点的速度·速度瞬心 §15-3 平面图形上点的加速度 习题 第16章 质点的运动微分方程 §16-1 动力学的基本定律 §16-2 质点的运动微分方程 习题 第17章 动力学普遍定理 §17-1 动量定理 §17-2 动量矩定理 §17-3 动能定理 §17-4 动力学普遍定理的综合应用 习题 第18章 动静法 §18-1 关于惯性力的概念 §18-2 质点的动静法 §18-3 质点系的动静法 §18-4 刚体惯性力系的简化 习题 附录Ⅰ 型钢表 附录Ⅱ 简单荷载作用下梁的挠度和转角 参考文献 习题答案 索引 Synopsis Contents 执笔者简介 Contents Chapter1 Basis of Statics §1-1 Basic Concepts in Statics §1-2 Axioms in Statics §1-3 Constraints and Constraining Forces §1-4 Force analysis of Body and Free-body Diagram Exercises Chapter2 Planar Concurrent Force System §2-1 Resultant and Equilibrium Condition of Planar Concurrent Force Systems: GeometricalMethod §2-2 Resultant and Equilibrium Condition of Planar Concurrent Force Systems: Analytical ethod Exercises Chapter3 Moment and Plane Couples §3-1 Concept and Calculation of the Moment §3-2 Concept of the Couple §3-3 Resultant and Equilibrium Condition of Planar Couple System Exercises Chapter4 General Planar Force System §4-1 Theorem of Translation of the Force §4-2 Reduction of Planar Force System to a Given Co-planar Point §4-3 Distributed Load §4-4 Equilibrium Condition of the General Planar Force System §4-5 Equilibrium Condition of the Parallel Forces §4-6 Equilibrium of Body System· Concept of Statically Determinate and Inderterminate Problem §4-7 Internal forces in Members of Statically Determinate Planar Trusses Exercises Chapter5 Friction §5-1 Sliding Friction §5-2 Equilibrium Problem of The Body with Friction §5-3 Concept of Rolling Resistance Exercises Chapter6 Spatial Force System and Center of Gravity §6-1 Resultant and Equilibrium Condition of Spatial Concurrent Force §6-2 Moment of Force about a Point and about an Axis §6-3 Resultant and Equilibrium Condition of Spatial Couple §6-4 Reduction of Spatial Force System to a Given Point· Principal Vector and Principal Moment §6-5 Epuilibrium Condition of the General Spatial Force System §6-6 Formula for Coordinate of Centre of Gravity and Centroid of an Area §6-7 Method to Find Centre of Gravity and Centroid of an Area Exercises Chapter7 Tension and Compression §7-1 Axial Force and Its Diagram §7-2 Stress on Cross Section §7-3 Calculation about Strength of Axially Loaded Bars §7-4 Stresses on Inclined Sections §7-5 Deformation and Displacement of Axially Loaded Bars §7-6 Strain Energy in Axially Loaded Bars §7-7 Mechanical Behaviour of Structural Steel and Cast Iron under Tension and Compression §7-8 Simple Statically Indeterminate Problems of Axially Loaded Bars §7-9 Analysis of Connections in Axially Loaded Bars Exercises Chapter8 Torsion §8-1 Twisting Moment and Its Diagram §8-2 Stresses and Deformation of Thin-walled Tube under Torsion §8-3 Stresses and Deformation of Circular Bar under Torsion §8-4 Strength Condition and Stiffness Condition of Circular Bar under Torsion §8-5 Strain Energy in Circular Bar with Constant Cross-section under Torsion §8-6 Torsion of Rectangular Bar Exercises Chapter9 Bending §9-1 Shear Force and Bending Moment· Their Diagrams §9-2 Further Investigation in Shearing Force and Bending Moment Diagrams §9-3 Normal Stresses under Bending §9-4 Parallel Axis Theorem for Moment of Inertia §9-5 Shearing Stresses under Bending §9-6 Strength Conditions of Beam §9-7 Deflection and Slope §9-8 Oblique Bending §9-9 Strain Energy due to Bending §9-10 Statically Indeterminate Beam Exercises Chapter10 Analysis of Stress· Theory of Strength §10-1 Introduction §10-2 Analysis of Plane Stress §10-3 Hook-s Law for Plane Stress §10-4 Triaxial Stress §10-5 Theories of Strength and Their Application Exercises Chapter11 Stability of Column §11-1 Concepts of Stability of Column §11-2 Critical Load for Long Column §11-3 Scope of Application for Euler-s Formula· Critical Stress Diagram §11-4 Stability Condition and Verification of Stability for Columns Exercises Chapter12 Kinematics of a Particle §12-1 Elementary Content of Kinematics· Reference Coordinates §12-2 The Vector Method in Kinematics of a Particle §12-3 The Rectangular Coordinating Method in Kinematics of a Particle §12-4 The Natural Coordinating Method in Kinematics of a Particle Exercises Chapter13 Simple Motion of Rigid Bodies §13-1 Translation of a Rigid Body §13-2 Rotation of a Rigid Body about a Fixed-axis §13-3 Velocity and Acceleration of the Points of a Rotating Rigid Body Exercises Chapter14 Composite Motion of a Particle §14-1 Absolute Motion· Relative Motion· Convected Motion §14-2 Theorem of Composition of the Velocities of a Particle §14-3 Theorem of Composition of the Accelerations of a Particle during the Convected Motion is Translation Exercises Chapter15 Plane Motion of a Rigid Body §15-1 Decomposition of the Plane Motion of a Rigid Body §15-2 Velocity of the Points on a Plane Figure· Instantaneous Center of Velocity §15-3 Acceleration of the Points on a Plane Figure Exercises Chapter16 Differential Equations of Motion of a Particle §16-1 Fundamental Laws of Dynamics §16-2 Differential Equations of Motion of a Particle Exercises Chapter17 General Theorems of Dynamics §17-1 Theorem of Linear Momentum §17-2 Theorem of Angular Momentum §17-3 Theorem of Kinetic Energy §17-4 Integrated Application of General Theorems of Dynamics Exercises Chapter18 Kineto-Static Method §18-1 Concepts of Inertia Force §18-2 Kineto-Static Method for a Particle §18-3 Kineto-Static Method for a Particle System §18-4 Reduction of Inertia Force System of a Rigid Body Exercises Appendix Ⅰ Properties of Rolled-Steel Shapes Appendix Ⅱ Beam Deflection and Slope by Simple Load References Key to Exercises Index Synopses Contents A Brief Introduction to the Writer