A novel bio-inspired anti-vibration structure for operating hand-held jackhammers

Jing, Xingjian; Zhang, Linli; Xiao, Feng; Sun, Bo; Li, Quankun

doi:10.1016/j.ymssp.2018.09.004

Cited by 107 publications

(34 citation statements)

References 17 publications

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“…Cam-roller-spring mechanism was also used for generating QZS characteristic for isolating vertical vibrations [13] , [14] , [15] , [16] , torsional vibrations [6] , [17] , and for adaptive pneumatic vibration isolator [1] . Other negative stiffness elements, such as bio-inspired structures [18] , [19] and electromagnetic structures [20] , [21] , [22] , were investigated for generating QZS feature. Recently, metamaterials and origami structures were also applied to achieve the QZS characteristics [23] , [24] , [25] , [26] , [27] .…”

Section: Introductionmentioning

confidence: 99%

A novel integrated quasi-zero stiffness vibration isolator for coupled translational and rotational vibrations

Brown

2021

Mechanical Systems and Signal Processing

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Section: Introductionmentioning

confidence: 99%

A novel integrated quasi-zero stiffness vibration isolator for coupled translational and rotational vibrations

Brown

2021

Mechanical Systems and Signal Processing

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“…For precision equipment, vibration is likely to cause poor machining quantity and unsatisfactory measurement accuracy [6]. Furthermore, vibration even brings about hidden danger to human health and safety to a certain extent [7]. Therefore, achieving efficient vibration isolation has always been the pursuit in industry.…”

Section: Introductionmentioning

confidence: 99%

Design and Characteristics of a Novel QZS Vibration Isolation System with Origami-inspired Corrector

Liu

Peng

Jin

2021

Preprint

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A new class of quasi-zero-stiffness (QZS) vibration isolation systems, inspired by the origami metamaterial, is proposed to achieve high-performance vibration suppression in this paper. According to the mechanical characteristics of Tachi-Miura origami (TMO) with single degree-of-freedom, the nonlinear geometric relationship is developed with the folding angle as the master variable. By utilizing equivalent transformation and virtual work principle, the static model is established, the influence of structural parameters on stiffness is investigated, and the negative stiffness mechanism of origami mechanism is revealed. By adding a linear spring with positive stiffness to the origami in parallel, the Tachi-Miura origami vibration isolator (TMOriVi) is obtained. Subsequently, the governing equation is presented by means of the harmonic balance method. Two types of instability situations, jump phenomenon and unbounded response, are studied, and their analytic criteria and relationship are derived. Finally, through the parametric influence analysis and a series of comparative studies, the effectiveness and superiority of the proposed isolator are verified. The proposed vibration isolation system with great design flexibility exhibits a significant potential in the field of low-frequency vibration isolation.

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“…Many researchers began to study the mechanism of bionic vibration isolation and made some significant improvement [19][20][21]. Jing et al proposed a variety of different types of bio-inspired vibration isolators and successfully applied them in engineering practice to achieve good vibration isolation effect [21][22][23][24][25][26][27]. However, most of the biomimetic vibration isolators are passive, and it is necessary to develop an active adaptive bionic isolator to achieve the vibration control effect with automatic adjustment.…”

Section: Introductionmentioning

confidence: 99%

Dynamics Analysis of Active Variable Stiffness Vibration Isolator for Whole-Spacecraft Systems Based on Nonlinear Output Frequency Response Functions

Zhang

Zhu

et al. 2020

Acta Mech. Solida Sin.

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In order to improve the harsh dynamic environment experienced by heavy rockets during different external excitations, this study presents a novel active variable stiffness vibration isolator (AVS-VI) used as the vibration isolation device to reduce excessive vibration of the whole-spacecraft isolation system. The AVS-VI is composed of horizontal stiffness spring, positive stiffness spring, parallelogram linkage mechanism, piezoelectric actuator, acceleration sensor, viscoelastic damping, and PID active controller. Based on the AVS-VI, the generalized vibration transmissibility determined by the nonlinear output frequency response functions and the energy absorption rate is applied to analyze the isolation performance of the whole-spacecraft system with AVS-VI. The AVS-VI can conduct adaptive vibration suppression with variable stiffness to the whole-spacecraft system, and the analysis results indicate that the AVS-VI is effective in reducing the extravagant vibration of the whole-spacecraft system, where the vibration isolation is decreased up to above 65% under different acceleration excitations. Finally, different parameters of AVS-VI are considered to optimize the whole-spacecraft system based on the generalized vibration transmissibility and the energy absorption rate.

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A novel bio-inspired anti-vibration structure for operating hand-held jackhammers

Cited by 107 publications

References 17 publications

A novel integrated quasi-zero stiffness vibration isolator for coupled translational and rotational vibrations

A novel integrated quasi-zero stiffness vibration isolator for coupled translational and rotational vibrations

Design and Characteristics of a Novel QZS Vibration Isolation System with Origami-inspired Corrector

Dynamics Analysis of Active Variable Stiffness Vibration Isolator for Whole-Spacecraft Systems Based on Nonlinear Output Frequency Response Functions

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