During vibration test of space hardware safety measures are never enough. In addition to all the self-check, system identification and drive limiting measures, it is customary for engineers also to define a notching profile. With this strategy one or more control (or measurement) channels have individual frequency ranges where each response must not exceed a predetermined level. Unfortunately, when many channels are ???active??? it is often the case that, for excess of safety, the target is no inherent of the control loop for the response to overshoots and they are not able to accommodate specific aerospace applications in which there are highly restrictive specifications. This paper presents an approach to automate and optimize the definition of a notch profile. The method is developed in a Matlab/Simulink environment which replicates the LMS Sine Control software and is based on a model of the structure under test.
Advanced Notch Prediction using Time Simulation / A., Carrella; DI LORENZO, Emilio; B., Peeters; J., Debille; M., Appolloni. - (2013). (Intervento presentato al convegno Space Tech Conference 2013 tenutosi a Long beach, CA, USA nel May 2013).
Advanced Notch Prediction using Time Simulation
DI LORENZO, EMILIO;
2013
Abstract
During vibration test of space hardware safety measures are never enough. In addition to all the self-check, system identification and drive limiting measures, it is customary for engineers also to define a notching profile. With this strategy one or more control (or measurement) channels have individual frequency ranges where each response must not exceed a predetermined level. Unfortunately, when many channels are ???active??? it is often the case that, for excess of safety, the target is no inherent of the control loop for the response to overshoots and they are not able to accommodate specific aerospace applications in which there are highly restrictive specifications. This paper presents an approach to automate and optimize the definition of a notch profile. The method is developed in a Matlab/Simulink environment which replicates the LMS Sine Control software and is based on a model of the structure under test.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
