Title:
SMART SPRING-BASED TUNABLE DYNAMIC VIBRATION ABSORBER AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2022/083128
Kind Code:
A1
Abstract:
A smart spring-based tunable dynamic vibration absorber and a control method. The tunable dynamic vibration absorber comprises a smart spring (2) connected to a main system (1). The smart spring (2) comprises a main supporting spring (201), an auxiliary supporting spring (202), a piezoelectric ceramic actuator (203), and a pair of controllable friction disks (205, 206). On the basis of a traditional tunable dynamic vibration absorber, the smart spring is used to replace a magnetorheological elastomer, and the smart spring-based tunable dynamic vibration absorber is designed. The dynamic vibration absorber can control the rigidity and damping change of the dynamic vibration absorber by means of an applied voltage, so that the inherent frequency of the dynamic vibration absorber can be adapt to the change of an external excitation frequency, thereby achieving a better vibration reduction effect.
Inventors:
WANG DAN (CN)
SONG LIYAO (CN)
CHEN BAI (CN)
ZHU RUPENG (CN)
CHEN WEIFANG (CN)
WANG YAOYAO (CN)
SONG LIYAO (CN)
CHEN BAI (CN)
ZHU RUPENG (CN)
CHEN WEIFANG (CN)
WANG YAOYAO (CN)
Application Number:
PCT/CN2021/098273
Publication Date:
April 28, 2022
Filing Date:
June 04, 2021
Export Citation:
Assignee:
UNIV NANJING AERONAUTICS & ASTRONAUTICS (CN)
International Classes:
F16F13/00
Domestic Patent References:
| WO2006132777A2 | 2006-12-14 |
Foreign References:
| CN112483586A | 2021-03-12 | |||
| CN105134866A | 2015-12-09 | |||
| CN110657192A | 2020-01-07 | |||
| CN110259877A | 2019-09-20 | |||
| CN111043215A | 2020-04-21 | |||
| JP2016194599A | 2016-11-17 |
Other References:
NI DE, ZHU RU-PENG: "Influencing factors of vibration suppression performance for a smart spring device", JOURNAL OF VIBRATION AND SHOCK, vol. 31, no. 23, 15 December 2012 (2012-12-15), XP055922801, DOI: 10.13465/j.cnki.jvs.2012.23.011
Attorney, Agent or Firm:
NANJING SUGAO PATENT AND TRADEMARK FIRM (ORDINARY PARTNERSHIP) (CN)
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