Design and characteristics of a novel QZS vibration isolation system with origami-inspired corrector

• Published in: Nonlinear dynamics Vol. 106; no. 1; pp. 255 - 277
• Main Authors: Liu, Shiwei, Peng, Gaoliang, Jin, Kang
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01-09-2021; Springer Nature B.V
• Subjects: Automotive Engineering; Classical Mechanics; Control; Deformation; Design; Dynamical Systems; Energy storage; Engineering; Equilibrium; Harmonic balance method; Investigations; Isolation systems; Mechanical Engineering; Mechanical properties; Metamaterials; Origami; Original Paper; Stability analysis; Static models; Stiffness; Vibration; Vibration analysis; Vibration control; Vibration isolators; Negative stiffness mechanism; Quasi-zero-stiffness characteristic; Analytic stability criteria; High-performance vibration isolation; Origami metamaterial
• ISSN: 0924-090X; 1573-269X
• DOI: 10.1007/s11071-021-06821-5

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 comparison with existing QZS isolator, 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.