An Evaluating Method for Fundamental Dynamical Parameters of Objects on a Printed Circuit Board -Nat

来源 :第十三届国际机电装置会议(IS-EMD2013) | 被引量 : 0次 | 上传用户:susan002
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  Authors developed the mechanism which gives real vibration to electrical contacts by hammering oscillation in the vertical direction similar to real cases and studied the influences of micro-oscillating on contacts.Using an evaluating method (Method 1), the real dynamical parameters: to effective mass, effective force, and effective acceleration are obtained under the influence of external micro-oscillation.In addition another evaluating method (Method 2) reaches the real dynamical parameters: natural frequency and damping ratio.It is possible to known the values of effective mass m, effective force F and effective acceleration α0 from Method 1 in previous paper and natural frequency ω0 and damping ratio ξ from Method 2 in this paper.And it is possible to obtain the approximate dynamical properties of the objects by some equations.
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