Lecture+17 - 440:221 Intro to Engineering Mechanics:...

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440:221 Intro to Engineering Mechanics: Statics 1 Fall 2011 Based on Textbook Material: Engineering Mechanics Statics, 12 th Edition, R.C. Hibbeler, Pearson 2010. Alberto Cuitino, Po Ting Lin Instructors Arturo Villegas Assistants
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440:221 Lectures School of Engineering, Fall 2011 Structures (simple trusses) 2
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440:221 Lectures School of Engineering, Fall 2011 Topics to be covered • What is a truss structure? • Why trusses are used? • How do we analyze simple truss structures? 3
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440:221 Lectures School of Engineering, Fall 2011 Some examples of structures … 4
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440:221 Lectures School of Engineering, Fall 2011 MEMS (Lateral Free-Free Beam Resonator) 5 Wan-Thai Hsu, John R. Clark, and Clark T.C. Nguyen ,"Q-Optimized Lateral Free-Free Beam Micromechanical Resonators", Center for Wireless Integrated Microsystems
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440:221 Lectures School of Engineering, Fall 2011 MEMS (Lateral Free-Free Beam Resonator) 6 Wan-Thai Hsu, John R. Clark, and Clark T.C. Nguyen ,"Q-Optimized Lateral Free-Free Beam Micromechanical Resonators", Center for Wireless Integrated Microsystems
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440:221 Lectures School of Engineering, Fall 2011 Materials with microstructure 7 Cuitino et al X-Ray Tomography
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440:221 Lectures School of Engineering, Fall 2011 Materials with microstructure 8 Cuitino et al
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440:221 Lectures School of Engineering, Fall 2011 Materials with microstructure 9 Cuitino et al
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440:221 Lectures School of Engineering, Fall 2011 Materials with microstructure 10 Cuitino et al
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440:221 Lectures School of Engineering, Fall 2011 Structures within structures 11 http://www.ge.com/innovation/nano/
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440:221 Lectures School of Engineering, Fall 2011 Structures within structures 12 http://www.ge.com/innovation/nano/
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440:221 Lectures School of Engineering, Fall 2011 Structures within structures 13 http://www.ge.com/innovation/nano/
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440:221 Lectures School of Engineering, Fall 2011 Large structures 14 Beijing’s new National Stadium designed by a team comprising Herzog & de Meuron Architekten AG, of Basel, Switzerland, Arup, of London, and the China Architecture Design & Research Group, or CAG, of Beijing www.pubs.asce.org/magazines/CEMag/2008/Issue_08-
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440:221 Lectures School of Engineering, Fall 2011 Large structures 15 330 m x 220 m x 69 m www.pubs.asce.org/magazines/CEMag/2008/Issue_08-
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School of Engineering, Fall 2011 Large structures 16 Primary structure: Twenty-four perimeter columns rise to join the horizontal trusses that span the roof. The roof trusses follow a diagonal path, crisscrossing each other to leave an opening above the athletic field in the center of the arena. In essence, the columns and trusses form a series of interlocking portal frames that efficiently distribute loads to the foundations. www.pubs.asce.org/magazines/CEMag/2008/Issue_08-
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Lecture+17 - 440:221 Intro to Engineering Mechanics:...

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