4021 Dynamic behavior and Numerical Simulation of Catenary-Cable Subjected to Periodic Excitation

Abstract The dynamic environment of embarqued structures such as radars or more generally electronic equipments consists of impacts, sine and large power spectrum excitations. Under these real conditions and amongst different kinds of isolation, the passive damper with nonlinear parameters can provide good performances. This paper is concerned with the dynamic behavior of rigid bodies on highly nonlinear mounts. The numerical simulation and the experiment carried out, show that the load-deflection behavior of the dampers have to be slightly ajusted with respect to impact vibrations to obtain a well designed behavior.

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Various Types of Coexisting Attractors in a New 4D Autonomous Chaotic System

International Journal of Bifurcation and Chaos ◽

10.1142/s0218127417501425 ◽

2017 ◽

Vol 27 (09) ◽

pp. 1750142 ◽

Cited By ~ 48

Author(s):

Qiang Lai ◽

Akif Akgul ◽

Xiao-Wen Zhao ◽

Huiqin Pei

Keyword(s):

Numerical Simulation ◽

Dynamic Behavior ◽

Chaotic System ◽

Limit Cycles ◽

Electronic Circuit ◽

Strange Attractors ◽

Bifurcation Diagrams ◽

Coexisting Attractors ◽

Signum Function ◽

Multiple Coexisting Attractors

An unique 4D autonomous chaotic system with signum function term is proposed in this paper. The system has four unstable equilibria and various types of coexisting attractors appear. Four-wing and four-scroll strange attractors are observed in the system and they will be broken into two coexisting butterfly attractors and two coexisting double-scroll attractors with the variation of the parameters. Numerical simulation shows that the system has various types of multiple coexisting attractors including two butterfly attractors with four limit cycles, two double-scroll attractors with a limit cycle, four single-scroll strange attractors, four limit cycles with regard to different parameters and initial values. The coexistence of the attractors is determined by the bifurcation diagrams. The chaotic and hyperchaotic properties of the attractors are verified by the Lyapunov exponents. Moreover, we present an electronic circuit to experimentally realize the dynamic behavior of the system.

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Numerical Simulation of Parafoil Aerodynamics and Dynamic Behavior

20th AIAA Aerodynamic Decelerator Systems Technology Conference and Seminar ◽

10.2514/6.2009-2947 ◽

2009 ◽

Cited By ~ 9

Author(s):

Horst Altmann

Keyword(s):

Numerical Simulation ◽

Dynamic Behavior

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Numerical Simulation on Dynamic Behavior of Intermittent Roller Chain Drives

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.155-156.535 ◽

2012 ◽

Vol 155-156 ◽

pp. 535-539 ◽

Cited By ~ 1

Author(s):

Li Xin Xu ◽

Yong Gang Li

Keyword(s):

Numerical Simulation ◽

Dynamic Behavior ◽

Simulation Analysis ◽

Longitudinal Vibration ◽

Three Dimension ◽

Chain Drive ◽

Rigid Body Dynamic ◽

Analysis And Design ◽

Roller Chain ◽

Chain Drives

A detailed numerical simulation analysis on the dynamic response of intermittent roller chain drive has been carried out in this study. Instead of using analytical method, three dimension solid modeling software and multi-rigid body dynamic analysis software are utilized for modeling and simulating the dynamic behavior of chain drive. The longitudinal vibration response of the chain links is concentrated on, which aims to reveal the dynamic characteristics of the intermittent chain drive under varying motion laws such as the modified sinusoid (MS), the modified constant velocity (MCV) and the unsymmetrical modified trapezoid (UMT). The simulation results can enable designers to require information on the analysis and design of mechanisms with the intermittent roller chain drives.

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