<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>This paper presents a proposal of identification of a degree of hazard to ship shaft line due to impulse load caused by underwater explosion. A theoretical analysis was made of influence of changes in co-axiality of shafts on second-kind critical velocities resulting from elastic deformations of hull structure in vicinity of shaft bearing foundations. Results are presented of pilotage tests of underwater explosion performed on training water area. A preliminary mathematical model of underwater explosion is given with taking into account mass of explosives and distance from the tested object. The drawn conclusions show a way of identification of hazard to shaft line by using spectral analysis and time - runs of vibration signals recorded at shaft bearings.</p></abstract>

This paper presents a proposal of identification of a degree of hazard to ship shaft line due to impulse load caused by underwater explosion. A theoretical analysis was made of influence of changes in co-axiality of shafts on second-kind critical velocities resulting from elastic deformations of hull structure in vicinity of shaft bearing foundations. Results are presented of pilotage tests of underwater explosion performed on training water area. A preliminary mathematical model of underwater explosion is given with taking into account mass of explosives and distance from the tested object. The drawn conclusions show a way of identification of hazard to shaft line by using spectral analysis and time - runs of vibration signals recorded at shaft bearings.

An analysis of possible assessment of hazards to ship shaft line, resulting from impulse load

Polish Maritime Research

This paper presents a proposal of identification of a degree of hazard to ship shaft line due to impulse load caused by underwater explosion. A theoretical...

An analysis of possible assessment of hazards to ship shaft line, resulting from impulse load

Publié en ligne: 06 août 2007

Pages: 12 - 20

DOI: https://doi.org/10.2478/v10012-007-0013-1

Mots clés
ship shaft lines, technical diagnostics, modelling, vibrations, underwater explosion

This content is open access.

An analysis of possible assessment of hazards to ship shaft line, resulting from impulse load

Publié en ligne: 06 août 2007

Pages: 12 - 20

DOI: https://doi.org/10.2478/v10012-007-0013-1

Mots clésship shaft lines, technical diagnostics, modelling, vibrations, underwater explosion

This content is open access.

Mots clés
ship shaft lines, technical diagnostics, modelling, vibrations, underwater explosion