✦ LIBER ✦

On the force transmissibility of a vibration isolator with quasi-zero-stiffness

✍ Scribed by A. Carrella; M.J. Brennan; I. Kovacic; T.P. Waters

Publisher: Elsevier Science
Year: 2009
Tongue: English
Weight: 372 KB
Volume: 322
Category: Article
ISSN: 0022-460X
DOI: 10.1016/j.jsv.2008.11.034

No coin nor oath required. For personal study only.

✦ Synopsis

In this article the force transmissibility of a quasi-zero-stiffness (QZS) isolator is considered. The isolator comprises a vertical spring and two oblique springs that are either linear, linear with pre-stress or softening nonlinear with pre-stress. The force transmissibility of such a system is derived and compared with that of a linear system. Assuming light damping, simple approximate expressions for the maximum transmissibility and jump-down frequencies are derived. It is shown that there are advantages in having nonlinear and pre-stressed oblique springs compared to the other configurations, and that all the QZS systems can outperform the linear system provided that the system parameters are chosen appropriately.

📜 SIMILAR VOLUMES

Static analysis of a passive vibration i

Static analysis of a passive vibration isolator with quasi-zero-stiffness characteristic

✍ A. Carrella; M.J. Brennan; T.P. Waters 📂 Article 📅 2007 🏛 Elsevier Science 🌐 English ⚖ 405 KB

A study of a nonlinear vibration isolato

A study of a nonlinear vibration isolator with a quasi-zero stiffness characteristic

✍ Ivana Kovacic; Michael J. Brennan; Timothy P. Waters 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 1008 KB

On the response of a harmonically excite

On the response of a harmonically excited two degree-of-freedom system consisting of a linear and a nonlinear quasi-zero stiffness oscillator

✍ Gianluca Gatti; Ivana Kovacic; Michael J. Brennan 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 754 KB

Determination of the axial force on stay

Determination of the axial force on stay cables accounting for their bending stiffness and rotational end restraints by free vibration tests

✍ Marcelo A. Ceballos; Carlos A. Prato 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 389 KB

On the forced vibrations of an oscillato

On the forced vibrations of an oscillator with a periodically time-varying mass

✍ W.T. van Horssen; O.V. Pischanskyy; J.L.A. Dubbeldam 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 318 KB

In this paper the forced vibrations of a linear, single degree of freedom oscillator (sdofo) with a time-varying mass will be studied. The forced vibrations are due to small masses which are periodically hitting and leaving the oscillator with different velocities. Since these small masses stay for

ON THE WAVEGUIDE MODELLING OF DYNAMIC ST

ON THE WAVEGUIDE MODELLING OF DYNAMIC STIFFNESS OF CYLINDRICAL VIBRATION ISOLATORS. PART II: THE DISPERSION RELATION SOLUTION, CONVERGENCE ANALYSIS AND COMPARISON WITH SIMPLE MODELS

✍ L. KARI 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 697 KB

Based on a waveguide model presented in a companion paper (L. Kari 2001 Journal of Sound and <ibration 244, 211}233 [1]), the in#uences of higher order modes and structure-borne sound dispersion on the axial dynamic sti!ness for cylindrical vibration isolators are investigated. On the whole, a moder