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Abstract A case study was conducted to evaluate passengers' comfort on the Tehran-Andimeshk train in Iran. Hence, based on a=0.05, 91 passengers were selected. Whole-body vibration transmitted to the passengers was measured according to ISO 2631-1-1997. The crest factors in the the majority of...
Abstract Concrete plinths are commonly used by engineers as a base for vibratory building services machines. However, it is not clear what effects they have on the structure-borne sound power transmission and the eigenfrequencies of floors. In this paper, the modal functions, eigenfrequencies,...
Abstract This work presents a method for analyzing the noise and vibration problems caused by hydraulic pumps in vehicles. This methodology is based on experimental research and coherent analysis of observed systems. Experimental investigations are conducted in order to determine dominant...
Abstract This paper studied the casing vibration and noise radiation of a centrifugal fan at the blade passing frequency (BPF) induced by the internal unsteady flow. Three-dimensional numerical simulation of the complete unsteady flow in the whole impeller-volute configuration was carried out...
Abstract Numerical analysis and active control simulation of sound transmission from air to water through laminated plates excited by a harmonic oblique incident plane wave and mounted in an infinite baffle are presented. The finite element method is used for modeling the dynamic behavior of the...
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