Optimization of Dynamic Performance for a 6-DOF All-Metal Vibration Isolator - Details

author：

Zheng, Chao (Zheng, Chao.) ^[1] | Wu, Jun (Wu, Jun.) ^[2] | Xue, Xin (Xue, Xin.) ^[3] (Scholars：薛新)

Indexed by：

EI Scopus

Abstract：

In　order　to　overcome　the　high-temperature　environment　when　the　aircraft　reaches　high　sound　speed,　an　all-metal　vibration　isolator　with　6-degree-of-freedom　(6-DOF)　motion　is　developed.　Its　stiffness　and　damping　ability　are　provided　by　the　oblique　springs　in　series　and　the　metal　rubber.　Aiming　to　obtain　the　dynamic　stiffness　and　loss　factor　of　the　isolator　under　multi-directional　dynamic　load,　the　ellipse　method　and　inertia　force　are　used　in　the　dynamic　test.　The　results　show　that　the　dynamic　stiffness　decreases　and　the　damping　factor　increases　with　the　increase　of　the　excitation　frequency　and　amplitude.　Moreover,　the　analysis　of　the　fitted　dynamic　stiffness　of　the　isolator　at　different　ex-citation　frequencies　has　been　conducted.　The　evaluation　of　the　corresponding　error　rates　within　4%　has　confirmed　the　necessity　of　considering　the　inertial　force　effects.　©　The　Author(s),　under　exclusive　license　to　Springer　Nature　Singapore　Pte　Ltd.　2024.

Keyword：

Damping Dynamic loads Stiffness

Community：

[ 1 ] [Zheng, Chao]Institute of Metal Rubber and Vibration Noise, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, China
[ 2 ] [Wu, Jun]Institute of Metal Rubber and Vibration Noise, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, China
[ 3 ] [Xue, Xin]Institute of Metal Rubber and Vibration Noise, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, China