Lecture+19

Lecture+19 - 440:221 Intro to Engineering Mechanics:...

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440:221 Intro to Engineering Mechanics: Statics Instructor: Alberto Cuitino TA: Pam Carabetta and Jingru Zhang Lecture 19 Fall 2009 1 Based on Textbook Material: Engineering Mechanics Statics, 12 th Edition, R.C. Hibbeler, Pearson 2010.
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440:221 Lectures rames and machines Frames and machines School of Engineering, Fall 2009 2
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440:221 Lectures opics to be covered Topics to be covered • How to draw the free body diagram of a frame or machine and its members. • How to determine the forces acting at the joints and supports f a frame or machine? of a frame or machine? School of Engineering, Fall 2009 3
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440:221 Lectures eading Quiz 1. Frames and machines are different as compared to trusses since they have ___________. Reading Quiz A) Only two-force members B) Only multiforce members C) At least one multi-force member D) At least one two-force ember member Forces common to any two contacting members act with on the C) 2. Forces common to any two contacting members act with _______ on the other member. A) Equal magnitudes but opposite sense B) Equal magnitudes and the same sense C) Different magnitudes but opposite sense ) Different magnitudes but the same sense A) School of Engineering, Fall 2009 D) Different magnitudes but the same sense
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440:221 Lectures pplications Applications Frames are commonly used to support various external loads. How is a frame different than a truss? To be able to design a frame, you need to determine the forces at the joints and supports. School of Engineering, Fall 2009
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440:221 Lectures pplications Applications “Machines,” like those above, are used in a variety of applications. ow can you determine the loads at the joints and supports? These forces How are they different from trusses and frames? School of Engineering, Fall 2009
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Lecture+19 - 440:221 Intro to Engineering Mechanics:...

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