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1、Introduction to Engineering MechanicsDar-Yun Chiang Objectives To provide an introduction of:Fundamental concepts,General principles,Analysis methods,Future Studies in Engineering Mechanics.Outlinel1.Engineering Mechanicsl2.Fundamental Conceptsl3.General Principlesl4.Static Analysisl5.Dynamic Analys
2、isl6.Future Studies 1.Engineering MechanicslMechanics:-Rigid-body Mechanics-Deformable-body Mechanics-Fluid MechanicslRigid-body Mechanics:-Statics-DynamicslStatics Equilibrium Analysis of particles and bodieslDynamics Accelerated motion of particles and bodies Kinematics and KineticslMechanics of M
3、aterialslTheory of Vibration1.Engineering Mechanics2.Fundamentals Concepts Basic QuantitieslLength,Mass,Time,ForceUnits of Measurementlm,kg,s,N(SI,Int.System of Units)-Dimensional Homogeneity-Significant Figures2.Fundamentals Concepts IdealizationslParticles Consider mass but neglect sizelRigid Body
4、 Neglect material propertieslConcentrated ForcelSupports and Reactions3.General Principles-Newtons Laws of MotionlFirst Law,Second Law,Third LawlLaw of Gravitational Attraction-DAlembert Principle:F+(-ma)=0-Impulse and Momentum-Work and Energy-Principle of Virtual Work(Equilibrium)4.Static Analysis
5、lForce and EquilibriumlForce System ResultantslStructural AnalysislInternal forceslFrictionlCentroid and Moments of InertialVirtual Work and Stability5.Dynamic AnalysislKinematics of a ParticlelKinetics:Force and Acceleration lWork and EnergylImpulse and Momentum(Impact)lPlanar Kinematics and Kineti
6、csl3-D Kinematics and KineticslVibrations6.Future Studiesl飛飛 機機 結結 構構 設設 計計 目目 標標 1.成本及重量(Cost and Weight)2.靜力強度(Static Strength)3.耐久性(Durability)4.耐損傷性(Damage Tolerance)5.耐振顫及振動性(Flutter and Vibration)6.耐腐蝕性(Corrosion Resistance)7.耐毀損性(Crashworthiness)8.維修及製造簡易性6.Future Studiesl材料力學、高等材力、結構力學、彈性力學複合材料力學、破壞力學、連體力學、塑性力學黏彈性力學、板殼分析、結構穩定學、有限元素法 流體力學、空氣動力學、熱力學、熱傳與燃燒 l振動學、非線性振動學、混沌振動學 高等動力學、結構動力學、隨機振動 l數值分析、機率與統計、信號處理、智慧型計算 最佳化分析、導航與控制、系統識別、
飞机结构设计目标1.
