Transcription of ME 563 MECHANICAL VIBRATIONS
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ME 563 MECHANICAL VIBRATIONS
ME 563 MECHANICAL VIBRATIONS Fall 2010 1-1 ME 563 MECHANICAL VIBRATIONS Fall 2010 Potter MWF 4:30 :20 Instructor: Prof. D. E. Adams Room: ME 361 Email: Phone: 496-6033 ME 563 MECHANICAL VIBRATIONS Fall 2010 1-2 1 Introduction to MECHANICAL VIBRATIONS Bad VIBRATIONS , good VIBRATIONS , and the role of analysis VIBRATIONS are oscillations in MECHANICAL dynamic systems. Although any system can oscillate when it is forced to do so externally, the term vibration in MECHANICAL engineering is often reserved for systems that can oscillate freely without applied forces. Sometimes these VIBRATIONS cause minor or serious performance or safety problems in engineered systems.
freely is because energy is exchanged between the system’s inertial (masses) elements and elastic (springs) elements. Free vibrations usually cease after a certain length of time because damping elements in systems dissipate energy as it is converted back-and-forth between kinetic energy and potential energy.
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