4 Statics Statics is the study of rigid bodies that are in equilibrium and concerned with the analysis of loads such as a force or moment/torque acting on a physical body or system, that is, it is in a state where the relative positions of sub-structures do not vary over time or ...
1 第一章质点的平衡 •平衡(equilibrium)：在惯性参考系中处于静止状态。要研究的问题：•如何建立力学模型•如何进行受力分析•如何寻找平衡规律 2021/5/4 2 §1-0力学模型与力系研究对象的力学模型：•质点(particle)：具有质量而其形状、大小可以不计的物体。mg•当物体平衡时，若求绳索的拉力，物体...
静定杆系的内力 The statics of rigid body, the content including the strength characteristic and the basic system of forces simplification, the spatial random system of forces simplification and the restraint basic type, the system of forces equilibrium condition and the skeleton composition rule, the...
5 Equilibrium of a Rigid Body Chapter Objectives 5.1 Conditions for Rigid-Body Equilibrium 5.1 Equilibrium in Two Dimensions 5.2 Free-Body Diagrams 5.3 Equations of Equilibrium 5.4 Two- and Three-Force Members 5.4 Equilibrium in Three Dimensions 5.5 Free-Body Diagrams 5.6 Equations of Equilibrium 5.7...
思考:分析双轮车是如何实现平衡的 * * §4-7 平衡的稳定性 平衡的稳定性(stability of equilibrium):质点系处于某一平衡位置,若受到微小干扰偏离平衡位置后总不超出平衡位置邻近的某个微小区域,则称质点系在该位置的平衡是稳定的(stable),否则是不稳定的(unstable)。 * * §4-7 平衡的稳定性 一、势力场及...
5.1 Conditions for Rigid-Body Equilibrium 5.2 Free-Body Diagrams 5.3 Equations of Equilibrium 5.4 Two- and Three-Force Members 5.5 Free-Body Diagrams 5.6 Equations of Equilibrium 5.7 Constraints and Statical Determinacy 6 Structural Analysis 6.1 Simple Trusses ...
Simplification of a Force and Couple System 160 4.8 Further Simplification of a Force and Couple System 170 4.9 Reduction of a Simple Distributed Loading 183 5 Equilibrium of a Rigid Body 199 Chapter Objectives 199 5.1 Conditions for Rigid-Body Equilibrium 199 5.2 Free-Body Diagrams 201 5.3 Equat...
StaticsStaticsofrigidChapter2 CoplanarConcurrentForceSystemandCoupleSystemMaincontents2.1Reductionofcoplanarconcurrentforcesystem2.2Equilibriumofcoplanarconcurrentforcesystem2.3ConplanarcouplesystemWhatiscoplanarconcurrentforcesystem?Aforcesystemisconcurrentiftheactionlinesofallforcesintersectatacommonpoint.F1F2F3F4Conclusion:A...
Statics refers to the branch of physics that deals with the equilibrium and configuration of a system without considering its motion or dynamics. It involves analyzing the geometrical fluctuations and roughness of a system at rest. AI generated definition based on: Physica B: Condensed Matter, 2012...
Equilibrium of a Particle In vector notation: ∑ F x i + ∑ F y j = 0 Or, for this equation to be satisfied ∑ F x = 0 ∑ F y = 0 Free Body Diagrams A Free Body diagram is a simple sketch of the particle (or member), including all forces that act on the particle (...