Testing of a Pyrotechnically Actuated Mechanism in Safety Applications
A. Naubert, H. Binz, M. Bachmann
Universität Stuttgart, Stuttgart, Germany
AIRBUS Group Innovation, München, Germany
Regarding environmentally friendly aviation, one key technology is the electrification of primary flight control systems by using jam-tolerant, electromechanical actuators. The required safety can be achieved by the integration of a pyrotechnically actuated mechanism in the drive train which disconnects the electromechanical actuator in case of a mechanical jam, so that redundant, electromechanical actuators are able to maintain the control function of the system. This paper describes the testing procedure during the development of such a pyromechanism including several pre-tests, the characterisation of the dynamical behaviour during the decoupling processes and robustness tests. The pyrotechnically actuated mechanism performs decoupling processes within shifting times shorter than 5 ms at compressive or tensile preloads up to 40 kN.
ACTUATOR 2014 Manuscript B6.8
Publication date: 09/04/2015
Manuscript B6.8 published in Conference Proceedings ACTUATOR 2014
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