|Table of Contents|

Continuous Force Approach for Impact Dynamics of Flexible Beam in Large Overall Motion

《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

Issue:
2008年06期
Page:
661-665
Research Field:
Publishing date:

Info

Title:
Continuous Force Approach for Impact Dynamics of Flexible Beam in Large Overall Motion
Author(s):
FANG Jian-shi1; 2; LI Bao-yu2; ZHANG Ding-guo2
1.School of Materials Engineering,Nanjing Institute of Technology,Nanjing 211167,China;2.School of Sciences,NUST,Nanjing 210094,China
Keywords:
flexible beams;  subsystem methods;  assumed modes;  contact-impact;  continuous force approach
PACS:
O313.7
DOI:
-
Abstract:
The impact dynamics of a flexible beam in large overall motion is reported.A set of dynamic equations with the dynamic stiffening effects is established by utilizing the subsystem method.The approach of assumed modes is used to describe the deformation of the beam,and subsequently the partial differential dynamic equations are changed to the form of ordinary differential equations.To obtain dynamic equations with impact,the Hertzian contact theory and nonlinear damping theory are adopted to calculate the impact force.To validate the method presented here,the dynamic simulation of the hub-beam system involving impact with a horizontal rigid plane is given as an example.

References:

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Last Update: 2008-12-30