A modified contour error controller for a high speed XY table
Título del documento: A modified contour error controller for a high speed XY table
Revista: Journal of the Brazilian Society of Mechanical Sciences
Base de datos: PERIÓDICA
Número de sistema: 000312049
ISSN: 0100-7386
Autores: 1
2
Instituciones: 1Universidade Federal de Uberlandia, Faculdade de Engenharia Mecanica, Uberlandia, Minas Gerais. Brasil
2Universidade de Sao Paulo, Escola de Engenharia de Sao Carlos, Sao Carlos, Sao Paulo. Brasil
Año:
Volumen: 22
Número: 3
Paginación: 443-455
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Aplicado
Resumen en inglés This article deals with a contour error controller (CEC) applied in a high speed biaxial table. It works simultaneously with the table axes controllers, helping them. In the early stages of the investigation, it was observed that its main problem is imprecision when tracking non-linear contours at high speeds. The objectives of this work are to show that this problem is caused by the lack of exactness of the contour error mathematical model and to propose modifications in it. An additional term is included, resulting in a more accurate value of the contour error, enabling the use of this type of motion controller at higher feedrate. The response results from simulated and experimental tests are compared with those of common PID and non-corrected CEC in order to analyse the effectiveness of this controller over the system. The main conclusions are that the proposed contour error mathematical model is simple, accurate, almost insensible to the feedrate and that a 20:1 reduction of the integral absolute contour error is possible
Disciplinas: Ingeniería
Palabras clave: Ingeniería de control,
Ingeniería industrial,
Ingeniería mecánica,
Contorneadoras,
Contornos,
Errores,
Controladores
Keyword: Engineering,
Control engineering,
Industrial engineering,
Mechanical engineering,
Contour machines,
Contour lines,
Errors,
Controllers
Texto completo: Texto completo (Ver HTML)