Response analyses of a two-phase cryogenic tank to longitudinal and lateral accelerations. (12th October 2010)

• Record Type: Journal Article
• Authors: Miralbes, R.; Castejon, L.; Carrera, M.; Valladares, D.
• Is Part Of: International journal of heavy vehicle systems. Volume 17:Number 3/4(2010)
• Page Start: 237
• Page End: 255
• Publication Date: 2010-10-12
• Subjects: two-phase cryogenic tanks -- longitudinal acceleration -- lateral acceleration -- emergency braking -- cryogenic gas -- liquefied gas -- dangerous goods -- hazardous substances -- finite element method -- FEM -- fluid movements -- fluids -- baffle shape -- semi-trailers -- gas transportation -- vehicle tankers -- heavy vehicles -- vehicle rollover -- rollover moment -- vehicle safety -- lateral baffle geometries -- dynamic forces -- mechanical stress; Motor vehicles -- Design and construction -- Periodicals; Commercial vehicles -- Design and construction -- Periodicals; Motor vehicles -- Design and construction; Periodicals; 629.224
• Languages: English
• ISSNs: 1744-232X

Abstract

The aim of this article is to present a methodology for calculating vehicle tankers by analysing the way baffle shape contributes to the movement of the fluid. This methodology could be used to optimise the geometry of these parts analysing different geometries. Four different lateral types of baffles used by different cryogenic tank manufacturers have been examined. Both the movement of the fluid and the forces transmitted by the latter to the tank during emergency braking manoeuvres are analysed and the principal conclusion is that the contribution of the geometry is very important. Besides, a longitudinal baffle meant to reduce the tendency of the tank to overturn while diminishing the moment generated by the load has been designed. The longitudinal baffle has been optimised, modifying the height and depending on the level of filling of the tanker the rollover moment can be reduced.