6 articles in this issue
Tadeusz Banek
A stochastic model of sound propagation in damping medium is proposed. It consists of: (1) Ito’s stochastic differential equation describing the sound propagation, (2) a potential which models the damping effects. However, due to presence of path integral... see more
Boguslaw Ladecki,Filip Matachowski
The long period and conditions of operation are the cause of various types of severe damage to cranes used in the steelworks industry. Among the more dangerous and difficult to eliminate crane damage types, there is excess durable deflection of its suppor... see more
Krzysztof Mendrok
In recent years one can observe an increasing interest of the researchers, both from academia and industry, in the development of systems for the monitoring of health structures.. The main fields of application for these systems are rotating machinery, ai... see more
Wojciech Rdzanek,Witold Rdzanek
This study focuses on the sound radiation of a vibrating flat annular plate. The rigorous theoretical considerations deal with sometime-harmonic and axisymmetric vibrations. Three different boundary configurations are considered, i.e. one of the plate’s e... see more
Stefan Weyna
A large variety of CFD/CAA hybrid approaches are commonly used today for aero-acoustic engineering applications using equations and the coupling between source and acoustic propagation region. The coupling is usually made using Lighthill’s acoustic analog... see more
Stanislaw Wolny,Boguslaw Ladecki,Filip Matachowski
Designing of modern box pallets with folding walls, which are used for example to transport tires, requires fulfilment of a number of performance requirements. Such pallets, adapted to be moved by forklifts, are stored or transported without loading with ... see more