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・ Equivalence point
・ Equivalence principle
・ Equivalence principle (geometric)
・ Equivalence relation
・ Equivalent (chemistry)
・ Equivalent air depth
・ Equivalent airspeed
・ Equivalent annual cost
・ Equivalent average
・ Equivalent carbon content
・ Equivalent circuit
・ Equivalent concentration
・ Equivalent Concrete Performance Concept
・ Equivalent definitions of mathematical structures
・ Equivalent dose
Equivalent dumping coefficient
・ Equivalent effective stratospheric chlorine
・ Equivalent impedance transforms
・ Equivalent input
・ Equivalent isotropically radiated power
・ Equivalent Lands
・ Equivalent latitude
・ Equivalent narcotic depth
・ Equivalent National Tertiary Entrance Rank
・ Equivalent noise resistance
・ Equivalent oxide thickness
・ Equivalent potential temperature
・ Equivalent pulse code modulation noise
・ Equivalent rectangular bandwidth
・ Equivalent Royal Navy ranks in the Merchant Navy


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Equivalent dumping coefficient : ウィキペディア英語版
Equivalent dumping coefficient

An equivalent dumping coefficient is a mathematical coefficient used in the calculation of the energy dispersed when a structure moves. As a civil engineering term, it defines the ''percent of a cycle of oscillation that is absorbed (converted to heat by friction)'' for the structure or sub-structure under analysis. Usually it is assumed that the equivalent dumping coefficient is linear, which is to say invariant compare to oscillatory amplitude. Modern seismic studies have shown this not to be a satisfactory assumption for larger civic structures, and have developed sophisticated amplitude and frequency based functions for ''equivalent dumping coefficient''.
When a building moves, the materials it is made from absorb a fraction of the kinetic energy (this is especially true of concrete) due primarily to friction and to viscous or elastomeric resistance which convert motion or kinetic energy to heat.



抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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