ريشه يابي كاستي هاي موجود در تحليل هاي عددي مدل غيرخطي ديناميكي مربوط به سيستم هاي سازه اي

A Source Of Shortcoming In Numerical Analysis Of Nonlinear Dynamic Models Associated With Structural Systems

Time integration of nonlinear models of dynamic structural systems is in general involved with responsesʹ improper convergence. In this paper, this undesired phenomenon is studied in mathematical detail. The consequence is the fact that in the above-mentioned analyses the main reason for responsesʹ improper convergence is a special kind of consistency between additional errors induced by iterative non-linearity solutions and time integration inherent errors.