Transcription of INTRODUCTION - novibration.com
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INTRODUCTION - novibration.com
51 INTRODUCTIONIn one extreme, the vibration environment may consist oflow-level seismic disturbances present everywhere on earth,which present operating problems to highly sensitive itemssuch as delicate optical equipment. When other disturbancesare superimposed on the seismic disturbances, a wide range of precision equipment is adversely other disturbances are caused by such things as vehicular and foot traffic, passing trains, air conditioning systems, and nearby rotating and reciprocating cause resolution problems in electron microscopes, disturb other optical systems, cause surface finish problemson precision grinders and jig borers.
55 Shock: Defined as a motion in which there is a sharp, nearly sudden change in velocity. Examples of this are a hammer blow on a anvil or a package falling to the ground. Shock may be expressed mathematically as a motion in
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