MAE206-L06-Ch3

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North Carolina State University *

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206

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Aerospace Engineering

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Oct 30, 2023

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11

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MAE 206 Engineering Statics Prof. Mary Zadeh Assistant Teaching Professor in Mechanical and Aerospace Engineering Department Fall 2023 Let’s GO PACK MAE 206 Fall 2023 Lecture 6 Prof. Zadeh Lecture 6 Equilibrium of Particles Ch 3.3. Equilibrium of Particles in 3D
Ch. 3.3 Page: 2 Let’s GO PACK MAE 206 Fall 2023 Lecture 6 Prof. Zadeh 1 0 . M o m e n t s o f I n e r t i a 9 . F r i c t i o n 7 . C e n t r o i d s & D i s t r i b u t e d F o r c e S y s t e m s 8 . I n t e r n a l F o r c e s 6 . S t r u c t u r a l A n a l y s i s a n d M a c h i n e s 5 . E q u i l i b r i u m o f b o d i e s 4 . M o m e n t o f a F o r c e 3 . E q u i l i b r i u m o f P a r t i c l e s 2 . V e c t o r s : F o r c e a n d P o s i t i o n 1 . I n t r o d u c t i o n t o S t a t i c s MAE 206 Engineering Statics
Ch. 3.3 Page: 3 Let’s GO PACK MAE 206 Fall 2023 Lecture 6 Prof. Zadeh Announcement HW #3 (Ch. 3) Due: Monday, Sep. 18 at the beginning of the lecture Exam 1 (Ch. 1-3) Monday, Sep. 25 Exam 2 (Ch. 4-6) Monday, Oct. 23 Exam 3 (Ch. 7-9) Monday, Nov. 20
Ch. 3.3 Page: 4 Let’s GO PACK MAE 206 Fall 2023 Lecture 6 Prof. Zadeh Review Problem-Solving Approach Road Map: Identify givens/data and unknowns and create a solution strategy. Modeling: Identify the system and make reasonable assumptions leading to the development of a FBD (or possibly multiple FBDs). Sketch the particle. Isolate it from its environment. Draw all the forces acting on it. Select a coordinate system , show dimensions and orientations of all forces. Governing Equations: Write the equations of equilibrium σ 𝑭 = 𝟎 , and as needed, additional eqns for other physical phenomena pertinent to problem. Computation: Solve the system of governing equations. Discussion and Verification: The results are critically examined and interpreted . Cables Support only tensile forces Bars Support both tensile and compressive forces Pulleys
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