DAMPING OF FLEXURE BLADES BASED ON BI-MATERIAL ADDITIVE MANUFACTURING: OPPORTUNITY FOR NEW DAMPER TOPOLOGIES?

Lisa Salamin, Hervé Saudan, Lionel Kiener, Elias Klauser, Nicolas Blondiaux, Florent Boudoire, Nikola Kalentics, Olivier Rousseaux, Johanna Zikulnig

Publikation: Konferenzband/Beitrag in Buch/BerichtKonferenzartikel

Abstract

In space applications, mechanisms and instruments are submitted to shocks and vibrations resulting from the rocket launch and other subsystems during operation. These harsh environmental conditions induce a need for damping systems to isolate the space mechanisms from disturbances. To tackle this challenge and preserve the friction-free properties of compliant mechanisms, CSEM added a damping action to their flexure-based technology. Damped flexure blades based on bi-material additive manufacturing were developed and
validated. The blades consist of a sandwich of two planar parallel metallic lattice patterns with an elastomer impregnated in-between. These blades were characterized under free and forced sinusoidal oscillations. Compared with reference flexures, the damped flexures show quality factors Q reduced by a factor of 64. This reduction implies a damping action increased by a factor of 97 considering the viscous damping coefficient. These results open promising perspectives to develop new types of dampers.
OriginalspracheEnglisch
TitelECSSMET Proceedings 2023
PublikationsstatusAngenommen/Im Druck - 30 März 2023
VeranstaltungEuropean Conference on Spacecraft Structures, Materials and Environmental Testing (ECSSMET) - Pierre Baudis Congress Centre, Toulouse, Frankreich
Dauer: 28 März 202330 März 2023
https://ecssmet2023.com/

Konferenz

KonferenzEuropean Conference on Spacecraft Structures, Materials and Environmental Testing (ECSSMET)
Land/GebietFrankreich
OrtToulouse
Zeitraum28/03/2330/03/23
Internetadresse

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