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Theses

Développement d'outils d'assistance à la conception optimale des liaisons élastiques par ressorts

Abstract : This thesis deals with the development of spring design tools for design engineers. These tools are to propose the best spring design directly from the designer requirements. Firstly, we have defined the main characteristics that should have such tools in order to satisfy the needs of both spring manufacturers and design engineers.
Next, we have developed a stock spring selection tool for compression springs. This tool is able not only to propose the best stock spring from within a catalogue but also the best way to use that spring depending on the specifications. Three selection methods have been developed to satisfy the various needs of designers. Each method can propose a spring whatever the specifications.
A tool for optimal custom compression spring design has also been developed. This process can be used even in the early design stages as data are set with interval values. It includes a large set of constraints, which can express not only the designer's requirements but also the standards and the technical capability limits of spring manufacturers. The problem is resolved using the Excel solver. The required starting point is automatically calculated by a dedicated algorithm, which uses interval arithmetic.
Both tools have been adapted to extension springs. All these tools have been successfully tested by a spring manufacturer to solve industrial problems. Torsion springs are more difficult to design than the previous springs. We started to adapt the previous tools to this type of springs.
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https://tel.archives-ouvertes.fr/tel-00255988
Contributor : Manuel Paredes <>
Submitted on : Thursday, February 14, 2008 - 3:25:30 PM
Last modification on : Friday, January 10, 2020 - 9:10:05 PM
Long-term archiving on: : Thursday, May 20, 2010 - 10:06:28 PM

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  • HAL Id : tel-00255988, version 1

Citation

Manuel Paredes. Développement d'outils d'assistance à la conception optimale des liaisons élastiques par ressorts. Mécanique [physics.med-ph]. INSA de Toulouse, 2000. Français. ⟨tel-00255988⟩

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