Dynamic behavior of moving Elastic Body System on Simple Beam with Axial Load

J. Ocean Eng. Technol. 2000;14(1):67-73.

축하중을 고려한 단순보상의 이동탄성계의 진동해석

김영수

부산정보대학 기계산업계열

Keywords: Moving elastic body system, Axial load, Suspension unit, Damping coefficent, Runge-kutta method, Dynamic behavior

핵심용어: 이동탄성계, 축하중, 현가장치, 감쇠계수, 룬게-쿠타 방법, 동특성

Abstract

The dynamic behavior of a moving elastic body system with three constant velocitics on a simple beam with an axial load is analyzed by numerical method. A moving elastic body system is composed of an elastic body and a suspension unit with two unsprung masses. The governing equations are derived with an aid of Lagrange's equation. These equation are solved by Runge-Kutta method. The damping coefficients a spring constants of the suspension unit the force circular frequency on a moving elastic body the velocity of a moving elastic body system. These effects are more important in the high modes of a simple beam.