This study presents a basic idea for the self·excitation mechanism of reed valves in refrigerant compressors used for air conditioners or refrigera· tors. The detailed experimental data on the phase lag of fluid pressure, which were obtained from a forced vibration test on a simple axisymmetrical model, namely a resonator, composed of the valve, the valve plate, the cylinder and the piston, wer...

Abstract Forced vibration analysis is an indispensable process for the design of a rotating component. However, rather expensive nonlinear static and linear frequency response analyses are usually accompanied by domain analysis. The traditional mode-superposition method (MSM) effectively reduces cost earlier processes remains as computational bottleneck. In this paper, application hyper-reducti...

In the present study, a spectral finite element method is developed for free and forced transverse vibration of Levy-type moderately thick rectangular orthotropic plates based on first-order shear deformation theory. Levy solution assumption was used to convert the two-dimensional problem into a one-dimensional problem. In the first step, the governing out-of-plane differential equations are tr...