A1 energy absorber challenges steel. (impact energy absorbers)

Article Abstract:

New aluminium impact energy absorbers have been developed to improve the crash-worthiness of automobiles. Engineers worked with a leading car manufacturer to test different materials including steel, aluminium and composites, followed by the development of concept crash units based on two-step inversion, pulverisaiton and buckling. It was found that the inversion principle had better energy absorbing capacity than traditional buckling, although buckling units were reliable and simple

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Tumbler keeps ball and cones on track

Article Abstract:

Parry Associates has developed a flywheel-powered tram system which looks set to revive interest in ball-and-cone constantly variable transmissions. The totally mechanical system was originally developed for an electric car called the Parry People Mover, but it could have applications for machinery in remote areas or renewable energy resources. A description of the variable speed drive is presented.

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Reinforced model speeds development

Article Abstract:

IMI Norgren Ltd. has redesigned its Olympian 13 range of air line units. The units feature sterolithographic components covered in a metal alloy with a low melting point. They have their own patented sight glass. The units are compatible with the earlier version. They also have detents so that disassembly is impossible when the unit is under pressure.

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