Vibration Control of Time-Varying Delay under Complex Excitation
The existing available research outcomes on vibration attenuation control for time-delay feedback indicate that, for the delay dynamic vibration absorber with fixed time-delay control parameters, under harmonic excitation, a good vibration attenuation control effect occurs on the vibration of the ma...
Main Authors: | , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2021-09-01
|
Series: | Micromachines |
Subjects: | |
Online Access: | https://www.mdpi.com/2072-666X/12/9/1081 |
id |
doaj-cf388cecb8094b7c99a1a1c524f3d6a1 |
---|---|
record_format |
Article |
spelling |
doaj-cf388cecb8094b7c99a1a1c524f3d6a12021-09-26T00:42:48ZengMDPI AGMicromachines2072-666X2021-09-01121081108110.3390/mi12091081Vibration Control of Time-Varying Delay under Complex ExcitationKaiwei Wu0Chuanbo Ren1Yuanchang Chen2Sujuan Shao3Jilei Zhou4Chicheng Ma5Lin Li6School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255000, ChinaSchool of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255000, ChinaStructural Dynamics and Acoustic Systems Laboratory, University of Massachusetts Lowell, One University Avenue, Lowell, MA 01854, USASchool of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255000, ChinaSchool of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255000, ChinaSchool of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255000, ChinaSchool of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255000, ChinaThe existing available research outcomes on vibration attenuation control for time-delay feedback indicate that, for the delay dynamic vibration absorber with fixed time-delay control parameters, under harmonic excitation, a good vibration attenuation control effect occurs on the vibration of the main system. However, the effect is not obvious for complex excitation. Aiming at the above problems, in a short time interval, a harmonic excitation with the same displacement size as the complex excitation was established. Then, by calculating its equivalent amplitude and equivalent frequency, a harmonic equivalent method for complex excitation was proposed in this paper. The time-delay parameters were adjusted according to the equivalent frequency of harmonic equivalent excitation in real time; therefore, a good vibration attenuation control effect was obtained through the delay dynamic vibration absorber in the discrete time interval. In this paper, research on a time-varying delay dynamic vibration absorber was conducted by taking the two-degree-of-freedom vibration system with a delay dynamic vibration absorber as an example. The simulation results show that the proposed control method can reduce the vibration of the main system by about 30% compared with the passive vibration absorber. This can obviously improve the performance of the time-delay dynamic vibration absorber. It provides a new technical idea for the design of vehicle active frame system.https://www.mdpi.com/2072-666X/12/9/1081time-varying delaydynamic vibration absorberstabilityhybrid particle swarm optimization algorithm |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Kaiwei Wu Chuanbo Ren Yuanchang Chen Sujuan Shao Jilei Zhou Chicheng Ma Lin Li |
spellingShingle |
Kaiwei Wu Chuanbo Ren Yuanchang Chen Sujuan Shao Jilei Zhou Chicheng Ma Lin Li Vibration Control of Time-Varying Delay under Complex Excitation Micromachines time-varying delay dynamic vibration absorber stability hybrid particle swarm optimization algorithm |
author_facet |
Kaiwei Wu Chuanbo Ren Yuanchang Chen Sujuan Shao Jilei Zhou Chicheng Ma Lin Li |
author_sort |
Kaiwei Wu |
title |
Vibration Control of Time-Varying Delay under Complex Excitation |
title_short |
Vibration Control of Time-Varying Delay under Complex Excitation |
title_full |
Vibration Control of Time-Varying Delay under Complex Excitation |
title_fullStr |
Vibration Control of Time-Varying Delay under Complex Excitation |
title_full_unstemmed |
Vibration Control of Time-Varying Delay under Complex Excitation |
title_sort |
vibration control of time-varying delay under complex excitation |
publisher |
MDPI AG |
series |
Micromachines |
issn |
2072-666X |
publishDate |
2021-09-01 |
description |
The existing available research outcomes on vibration attenuation control for time-delay feedback indicate that, for the delay dynamic vibration absorber with fixed time-delay control parameters, under harmonic excitation, a good vibration attenuation control effect occurs on the vibration of the main system. However, the effect is not obvious for complex excitation. Aiming at the above problems, in a short time interval, a harmonic excitation with the same displacement size as the complex excitation was established. Then, by calculating its equivalent amplitude and equivalent frequency, a harmonic equivalent method for complex excitation was proposed in this paper. The time-delay parameters were adjusted according to the equivalent frequency of harmonic equivalent excitation in real time; therefore, a good vibration attenuation control effect was obtained through the delay dynamic vibration absorber in the discrete time interval. In this paper, research on a time-varying delay dynamic vibration absorber was conducted by taking the two-degree-of-freedom vibration system with a delay dynamic vibration absorber as an example. The simulation results show that the proposed control method can reduce the vibration of the main system by about 30% compared with the passive vibration absorber. This can obviously improve the performance of the time-delay dynamic vibration absorber. It provides a new technical idea for the design of vehicle active frame system. |
topic |
time-varying delay dynamic vibration absorber stability hybrid particle swarm optimization algorithm |
url |
https://www.mdpi.com/2072-666X/12/9/1081 |
work_keys_str_mv |
AT kaiweiwu vibrationcontroloftimevaryingdelayundercomplexexcitation AT chuanboren vibrationcontroloftimevaryingdelayundercomplexexcitation AT yuanchangchen vibrationcontroloftimevaryingdelayundercomplexexcitation AT sujuanshao vibrationcontroloftimevaryingdelayundercomplexexcitation AT jileizhou vibrationcontroloftimevaryingdelayundercomplexexcitation AT chichengma vibrationcontroloftimevaryingdelayundercomplexexcitation AT linli vibrationcontroloftimevaryingdelayundercomplexexcitation |
_version_ |
1716870042065305600 |