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a general rule for the influence of physical damping on the numerical stability of time integration analysis
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نویسنده
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soroushian aram
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منبع
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journal of applied and computational mechanics - 2018 - دوره : 4 - شماره : 5 - صفحه:467 -481
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چکیده
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The influence of physical damping on the numerical stability of time integration analysis is an open question since decades ago. in this paper, it is shown that, under specific very general conditions, physical damping can be disregarded when studying the numerical stability. it is also shown that, provided the specific conditions are met, analysis of structural systems involved in extremely high linearviscous damping is unconditionally stable. a secondary achievement is that, when the linearviscous damping increases, the numerical damping may increase or decrease.
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کلیدواژه
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time integration ,numerical stability ,damping ,viscous ,numerical damping ,nonlinearity
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آدرس
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international institute of earthquake engineering and seismology, structural engineering research center, ایران
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پست الکترونیکی
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a.soroushian@iiees.ac.ir
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Authors
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