Torsion-loaded rod-shaped component with different fibre reinforcements for tensile and compressive loading

Research output: Intellectual propertyPatent application/Patent

Contributors

Abstract

A torsion spring may be configured as a torsion bar or a helical spring made of a spring wire made of fiber-composite material. The torsion spring may have a plurality of layers of fiber reinforcement that have been saturated with a matrix material, wherein the layers may have fibers that are tension-loaded and fibers that are compression-loaded. The at least one compression-loaded group may have a lower group stiffness than the tension-loaded group with the highest group stiffness. Methods for designing or making torsion springs made of fiber-composite material are also disclosed.

Details

A torsion spring may be configured as a torsion bar or a helical spring made of a spring wire made of fiber-composite material. The torsion spring may have a plurality of layers of fiber reinforcement that have been saturated with a matrix material, wherein the layers may have fibers that are tension-loaded and fibers that are compression-loaded. The at least one compression-loaded group may have a lower group stiffness than the tension-loaded group with the highest group stiffness. Methods for designing or making torsion springs made of fiber-composite material are also disclosed.
Original languageEnglish
IPC (International Patent Classification)F16F 1/366
Patent numberUS 11,078,979
Filing date14 Apr 2015
Country/TerritoryUnited States of America
Priority date11 Jun 2014
Priority numberDE102014211096
Publication statusPublished - 3 Aug 2021
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Keywords