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Forced response of a high-static-low-dynamic (HSLD) stiffness isolator with active stiffness control / Muhajir Ab Rahim, Mohd Azmi Yunus and Muhamad Norhisham Abdul Rani

The High-Static-Low-Dynamic (HSLD) stiffness vibration isolators have been exploited in many engineering applications due to its capability in having a wider isolation bandwidth, while maintaining the high static load capacities. However, it will lead to a large payload oscillation at the static equ...

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Main Authors: Ab Rahim, Muhajir, Yunus, Mohd Azmi, Abdul Rani, Muhamad Norhisham
Format: Article
Language:English
Published: UiTM Press 2024
Subjects:
Structural engineering
Online Access:https://ir.uitm.edu.my/id/eprint/100876/1/100876.pdf
https://ir.uitm.edu.my/id/eprint/100876/
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spelling my.uitm.ir.1008762024-09-03T22:28:20Z https://ir.uitm.edu.my/id/eprint/100876/ Forced response of a high-static-low-dynamic (HSLD) stiffness isolator with active stiffness control / Muhajir Ab Rahim, Mohd Azmi Yunus and Muhamad Norhisham Abdul Rani jmeche Ab Rahim, Muhajir Yunus, Mohd Azmi Abdul Rani, Muhamad Norhisham Structural engineering The High-Static-Low-Dynamic (HSLD) stiffness vibration isolators have been exploited in many engineering applications due to its capability in having a wider isolation bandwidth, while maintaining the high static load capacities. However, it will lead to a large payload oscillation at the static equilibrium position, if the source of vibration is an oscillating force originating within the payload. In this case, the considerably large resultant motion of the payload will change the system nonlinearity. An active stiffness control for reducing the displacement amplitude of the payload oscillation subjected to a harmonic force excitation is proposed in this paper. The dynamic model of an actively stiffened HSLD stiffness isolator is introduced, and the approximate analytical expression for forced response is obtained using the Harmonic Balance Method (HBM). The obtained forced response curve has demonstrated that the active stiffness control is able to reduce the system’s force response, particularly at low frequencies with an approximation of 50%. The nonlinearity of the system becomes smaller as the active stiffness control is applied. UiTM Press 2024-09 Article PeerReviewed text en https://ir.uitm.edu.my/id/eprint/100876/1/100876.pdf Forced response of a high-static-low-dynamic (HSLD) stiffness isolator with active stiffness control / Muhajir Ab Rahim, Mohd Azmi Yunus and Muhamad Norhisham Abdul Rani. (2024) Journal of Mechanical Engineering (JMechE) <https://ir.uitm.edu.my/view/publication/Journal_of_Mechanical_Engineering_=28JMechE=29/>, 21 (3): 7. pp. 109-122. ISSN 1823-5514 ; 2550-164X
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Structural engineering
spellingShingle Structural engineering
Ab Rahim, Muhajir
Yunus, Mohd Azmi
Abdul Rani, Muhamad Norhisham
Forced response of a high-static-low-dynamic (HSLD) stiffness isolator with active stiffness control / Muhajir Ab Rahim, Mohd Azmi Yunus and Muhamad Norhisham Abdul Rani
description The High-Static-Low-Dynamic (HSLD) stiffness vibration isolators have been exploited in many engineering applications due to its capability in having a wider isolation bandwidth, while maintaining the high static load capacities. However, it will lead to a large payload oscillation at the static equilibrium position, if the source of vibration is an oscillating force originating within the payload. In this case, the considerably large resultant motion of the payload will change the system nonlinearity. An active stiffness control for reducing the displacement amplitude of the payload oscillation subjected to a harmonic force excitation is proposed in this paper. The dynamic model of an actively stiffened HSLD stiffness isolator is introduced, and the approximate analytical expression for forced response is obtained using the Harmonic Balance Method (HBM). The obtained forced response curve has demonstrated that the active stiffness control is able to reduce the system’s force response, particularly at low frequencies with an approximation of 50%. The nonlinearity of the system becomes smaller as the active stiffness control is applied.
format Article
author Ab Rahim, Muhajir
Yunus, Mohd Azmi
Abdul Rani, Muhamad Norhisham
author_facet Ab Rahim, Muhajir
Yunus, Mohd Azmi
Abdul Rani, Muhamad Norhisham
author_sort Ab Rahim, Muhajir
title Forced response of a high-static-low-dynamic (HSLD) stiffness isolator with active stiffness control / Muhajir Ab Rahim, Mohd Azmi Yunus and Muhamad Norhisham Abdul Rani
title_short Forced response of a high-static-low-dynamic (HSLD) stiffness isolator with active stiffness control / Muhajir Ab Rahim, Mohd Azmi Yunus and Muhamad Norhisham Abdul Rani
title_full Forced response of a high-static-low-dynamic (HSLD) stiffness isolator with active stiffness control / Muhajir Ab Rahim, Mohd Azmi Yunus and Muhamad Norhisham Abdul Rani
title_fullStr Forced response of a high-static-low-dynamic (HSLD) stiffness isolator with active stiffness control / Muhajir Ab Rahim, Mohd Azmi Yunus and Muhamad Norhisham Abdul Rani
title_full_unstemmed Forced response of a high-static-low-dynamic (HSLD) stiffness isolator with active stiffness control / Muhajir Ab Rahim, Mohd Azmi Yunus and Muhamad Norhisham Abdul Rani
title_sort forced response of a high-static-low-dynamic (hsld) stiffness isolator with active stiffness control / muhajir ab rahim, mohd azmi yunus and muhamad norhisham abdul rani
publisher UiTM Press
publishDate 2024
url https://ir.uitm.edu.my/id/eprint/100876/1/100876.pdf
https://ir.uitm.edu.my/id/eprint/100876/
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score 13.211869

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