Modelling the Stiffness Element in the Multi-Degree of Freedom Mass-Spring System-Reference-Cited by-同舟云学术

Modelling the Stiffness Element in the Multi-Degree of Freedom Mass-Spring System

Published:2020-06 Issue: Volume:899 Page:3-10
ISSN:1662-7482
Container-title:Applied Mechanics and Materials
language:
Short-container-title:AMM

Author:

Bahari Abdul Rahim¹,Yunus Mohd Azmi¹,Rani Muhamad Norhisham Abdul¹,Wan Iskandar Mirza Wan Imaan Izhan¹,Shah Mohd Azam Shah Aziz¹

Affiliation:

1. Universiti Teknologi MARA

Abstract

Structural dynamics in structural engineering analysis involves the modal parameters (natural frequency, mode shape and damping ratio). The modal parameters of engineering structures is mainly influenced by the damping and stiffness properties. This research paper presents the reliability of CELAS element in the finite element modelling to represent the stiffness parameter. The simplified engineering structure considered in this study is a mass-spring system with multi-degree of freedom. Experimental modal testing is performed using an electro-magnetic vibration shaker as an exciter and an accelerometer to record the natural frequency of the system. HyperMesh normal mode analysis is used to compute the natural frequency of the mass-spring system. The comparative evaluation is performed in order to identify the accuracy of the natural frequencies obtained from the modelling analysis and the measured counterparts. Consequently, it is found that the element CELAS has a good capability to represent as the stiffness parameter in the finite element modelling.

Publisher

Trans Tech Publications, Ltd.

Link

https://www.scientific.net/AMM.899.3.pdf

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