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

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

Sensor Applications (SEA)

Research output: Conference proceeding/Chapter in Book/Report/ › Conference Paper

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.

Original language	English
Title of host publication	ECSSMET Proceedings 2023
Publication status	Accepted/In press - 30 Mar 2023
Event	European Conference on Spacecraft Structures, Materials and Environmental Testing (ECSSMET) - Pierre Baudis Congress Centre, Toulouse, France Duration: 28 Mar 2023 → 30 Mar 2023 https://ecssmet2023.com/

Conference

Conference	European Conference on Spacecraft Structures, Materials and Environmental Testing (ECSSMET)
Country/Territory	France
City	Toulouse
Period	28/03/23 → 30/03/23
Internet address	https://ecssmet2023.com/

Access to Document

MADAM_ECSSMET_PaperFinal published version, 1.17 MB

Cite this

@inproceedings{3923f9b97272427bbf1c173f8b3e776f,

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

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 andvalidated. 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.",

author = "Lisa Salamin and Herv{\'e} Saudan and Lionel Kiener and Elias Klauser and Nicolas Blondiaux and Florent Boudoire and Nikola Kalentics and Olivier Rousseaux and Johanna Zikulnig",

year = "2023",

month = mar,

day = "30",

language = "English",

booktitle = "ECSSMET Proceedings 2023",

note = "European Conference on Spacecraft Structures, Materials and Environmental Testing (ECSSMET) ; Conference date: 28-03-2023 Through 30-03-2023",