Fuzzy heuristic control of an electrodynamic shaker in accelerated HALT/HASS tests
This study aims to develop and implement a control algorithm based on heuristic methods to be used in vibration-accelerated tests performed by an electrodynamic shaker for HALT (Highly Accelerated Life Tests) and HASS (Highly Accelerated Stress Screening). In such tests, these controllers should be...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2019 |
| País: | Brasil |
| Institución: | Universidade Federal do Rio Grande do Sul (UFRGS) |
| Repositorio: | Repositório Institucional da UFRGS |
| Idioma: | inglés |
| OAI Identifier: | oai:www.lume.ufrgs.br:10183/196245 |
| Acceso en línea: | http://hdl.handle.net/10183/196245 |
| Access Level: | acceso abierto |
| Palabra clave: | Lógica difusa Eletrodinâmica Controlador PID Heurística PID control Fuzzy logic Heuristic control Electrodynamic shaker Control PID El control eurístico Agitador eletrodinámico |
| Sumario: | This study aims to develop and implement a control algorithm based on heuristic methods to be used in vibration-accelerated tests performed by an electrodynamic shaker for HALT (Highly Accelerated Life Tests) and HASS (Highly Accelerated Stress Screening). In such tests, these controllers should be robust to accommodate resonance effects in the test specimen and shaker that can affect the system’s dynamics. Two control systems are designed: (i) a Fuzzy Logic Control and (ii) a traditional PID control, both implemented using an electrodynamic shaker to control mechanical stress and acceleration levels in a test specimen under HALT/HASS. The obtained experimental results show that both control systems presented similar behavior, occurring minor overshoots and negligible residual steady-state errors at both constant and sine sweep tests for acceleration and stress level control. |
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