Dynamics of a Upright Pole Coupled with Nonlinear Hysteretic Isolators under Harmonic Base Excitation

Dynamics of a Upright Pole Coupled with Nonlinear Hysteretic Isolators under Harmonic Base Excitation

Leady isolator shows hysteretic nonlinearity. The isolation efficiency of leady isolator is an important problem in many engineering structures. In this paper, vibrations of a ceramic upright pole coupled with four leady isolators under harmonic base excitation are studied. A hysteretic force-deform...

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Main Authors: Yongfeng Cheng, Hulun Guo, Zhubing Zhu, Xiaochao Su, Yushu Chen
Format: Article
Language:English
Published: Hindawi Limited 2018-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2018/2497035
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spelling doaj-dc5b076bb10e48e6b41b2b1f6162860d2020-11-24T21:39:02ZengHindawi LimitedShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/24970352497035Dynamics of a Upright Pole Coupled with Nonlinear Hysteretic Isolators under Harmonic Base ExcitationYongfeng Cheng0Hulun Guo1Zhubing Zhu2Xiaochao Su3Yushu Chen4China Electric Power Research Institute, Beijing 100192, ChinaDepartment of Mechanics, Tianjin University, Tianjin 300072, ChinaChina Electric Power Research Institute, Beijing 100192, ChinaSchool of Astronautics, Harbin Institute of Technology, Harbin 150001, ChinaDepartment of Mechanics, Tianjin University, Tianjin 300072, ChinaLeady isolator shows hysteretic nonlinearity. The isolation efficiency of leady isolator is an important problem in many engineering structures. In this paper, vibrations of a ceramic upright pole coupled with four leady isolators under harmonic base excitation are studied. A hysteretic force-deformation model of leady isolator is derived from experimental results. With this model, the vibration of the pole in rotation is studied. The frequency response is obtained analytically by employing harmonic balance method. The analytical results are agreed well with numerical results. The vibration of the pole is decreased greatly by leady isolator, especially near resonant case. The influences of system parameters on vibration response and resonant peak are discussed in detail.http://dx.doi.org/10.1155/2018/2497035
collection DOAJ
language English
format Article
sources DOAJ
author Yongfeng Cheng
Hulun Guo
Zhubing Zhu
Xiaochao Su
Yushu Chen
spellingShingle Yongfeng Cheng
Hulun Guo
Zhubing Zhu
Xiaochao Su
Yushu Chen
Dynamics of a Upright Pole Coupled with Nonlinear Hysteretic Isolators under Harmonic Base Excitation
Shock and Vibration
author_facet Yongfeng Cheng
Hulun Guo
Zhubing Zhu
Xiaochao Su
Yushu Chen
author_sort Yongfeng Cheng
title Dynamics of a Upright Pole Coupled with Nonlinear Hysteretic Isolators under Harmonic Base Excitation
title_short Dynamics of a Upright Pole Coupled with Nonlinear Hysteretic Isolators under Harmonic Base Excitation
title_full Dynamics of a Upright Pole Coupled with Nonlinear Hysteretic Isolators under Harmonic Base Excitation
title_fullStr Dynamics of a Upright Pole Coupled with Nonlinear Hysteretic Isolators under Harmonic Base Excitation
title_full_unstemmed Dynamics of a Upright Pole Coupled with Nonlinear Hysteretic Isolators under Harmonic Base Excitation
title_sort dynamics of a upright pole coupled with nonlinear hysteretic isolators under harmonic base excitation
publisher Hindawi Limited
series Shock and Vibration
issn 1070-9622
1875-9203
publishDate 2018-01-01
description Leady isolator shows hysteretic nonlinearity. The isolation efficiency of leady isolator is an important problem in many engineering structures. In this paper, vibrations of a ceramic upright pole coupled with four leady isolators under harmonic base excitation are studied. A hysteretic force-deformation model of leady isolator is derived from experimental results. With this model, the vibration of the pole in rotation is studied. The frequency response is obtained analytically by employing harmonic balance method. The analytical results are agreed well with numerical results. The vibration of the pole is decreased greatly by leady isolator, especially near resonant case. The influences of system parameters on vibration response and resonant peak are discussed in detail.
url http://dx.doi.org/10.1155/2018/2497035
work_keys_str_mv AT yongfengcheng dynamicsofauprightpolecoupledwithnonlinearhystereticisolatorsunderharmonicbaseexcitation
AT hulunguo dynamicsofauprightpolecoupledwithnonlinearhystereticisolatorsunderharmonicbaseexcitation
AT zhubingzhu dynamicsofauprightpolecoupledwithnonlinearhystereticisolatorsunderharmonicbaseexcitation
AT xiaochaosu dynamicsofauprightpolecoupledwithnonlinearhystereticisolatorsunderharmonicbaseexcitation
AT yushuchen dynamicsofauprightpolecoupledwithnonlinearhystereticisolatorsunderharmonicbaseexcitation
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