Experimental identification of inertial and friction parameters for electro-hydraulic motion simulators

被引：23

作者：

Chen, Chun-Ta ^{[1
]}

Renn, Jyh-Chyang ^{[2
]}

Yan, Zong-Yuan ^{[2
]}

机构：

[1] Da Yeh Univ, Dept Mech & Automat Engn, Dacun 51591, Changhwa, Taiwan

[2] Natl Yunlin Univ Sci & Technol, Dept Mech Engn, Touliu 64002, Yunlin, Taiwan

来源：

MECHATRONICS | 2011年 / 21卷 / 01期

关键词：

Experimental identification; Motion simulator; Stewart platform; Boltzmann-Hamel-d'Alembert formulation; Least squares method; Servo-hydraulics; STEWART PLATFORM MANIPULATOR; DYNAMIC IDENTIFICATION; EXCITING TRAJECTORIES; PARALLEL ROBOT; SERIAL ROBOTS; MINIMUM SET; MODEL; FORMULATION; SYSTEMS;

D O I：

10.1016/j.mechatronics.2010.07.012

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The fullness of dynamics equations and the degree of uncertainty in dynamic parameters are important factors in application of the identified models to model-based control strategies. Therefore, in this paper. the experimental identification of inertial parameters and friction coefficients are dealt with for an electro-hydraulic motion simulator, normally consisting of the Stewart platform. The model with arbitrary geometry, inertia distribution and frictions are obtained based on a structured Boltzmann-Hamel-d'Alembert formulation, and then the estimation equations are explicitly expressed in terms of a linear form with respect to the base parameters of minimal dimension to be identified. The identified parameters are obtained through solving the estimation equations by simple least square method. Moreover, exciting trajectories are also designed respectively in the actuating space and task space. Finally, the identified parameters are used to validate the developed model by comparing the predicted forces with respect to the actuating forces for a random trajectory. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1 / 10

页数：10

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