Preparation research on novel dampers used in large optical telescope's noise and vibrations attenuating system

Xiu-ping Dong; Jian-chun Yang; Li Zhang

doi:10.1117/12.866945

12 October 2010 Preparation research on novel dampers used in large optical telescope's noise and vibrations attenuating system

Xiu-ping Dong, Jian-chun Yang, Li Zhang

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Proceedings Volume 7659, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials in Manufacturing and Testing; 765911 (2010) https://doi.org/10.1117/12.866945
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

General rubber damping materials used in noise and vibrations attenuating system can not adapt large optical telescope's working temperatures and environments. While Metal Rubber material which has loose, reticulate structures can endure high or low temperatures, rigorous space environments, erosions, aging, volatilization and radiations due to its metallic properties because it is made of stainless steel wires of φ 0.1~0.3 mm. When the MR damping component is uploaded with vibrating force, the displacement will cause intense frictions between wires' surfaces which will dissipate abundant energy and thus it can serve as dampers like natural rubbers. Since Metal Rubber components are prepared by compression moulding, various complex shapes of dampers can be produced conveniently to fulfill large optical telescope's noise and vibrations attenuating tasks. Based on the Metal Rubber component's four preparation approaches, helix-making, planar roughcast-weaving, planar roughcast-rolling and 3D roughcast punching, a ring-shaped 3D parametrical numerical model is founded by CAD technology. Definitely, this modeling research work may support the optimization of the current trial and try preparation of MR component and it will provide necessary foundations for its further application in noise and vibrations attenuating system in large optical telescopes.

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Xiu-ping Dong, Jian-chun Yang, and Li Zhang "Preparation research on novel dampers used in large optical telescope's noise and vibrations attenuating system", Proc. SPIE 7659, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials in Manufacturing and Testing, 765911 (12 October 2010); https://doi.org/10.1117/12.866945

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KEYWORDS

3D modeling

Space telescopes

Metals

Telescopes

Computer aided design

Solid modeling

Optical telescopes

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