Accuracy Analysis for 6-DOF PKM with Sobol Sequence Based Quasi Monte Carlo Method
Jianguang Li1, Jian Ding1, Lijie Guo2, Yingxue Yao1, Zhaohong Yi1, Huaijing Jing2,Honggen Fang2
(1. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China;2. Shanghai Aerospace Equipments Manufacturer, Shanghai 200245, China)
Abstract:
To improve the precisions of pose error analysis for 6-dof parallel kinematic mechanism (PKM) during assembly quality control, a Sobol sequence based on Quasi Monte Carlo (QMC) method is introduced and implemented in pose accuracy analysis for the PKM in this paper. The Sobol sequence based on Quasi Monte Carlo with the regularity and uniformity of samples in high dimensions, can prevail traditional Monte Carlo method with up to 98.59％ and 98.25％ enhancement for computational precision of pose error statistics. Then a PKM tolerance design system integrating this method is developed and with it pose error distributions of the PKM within a prescribed workspace are finally obtained and analyzed.
Key words: accuracy analysis quasi monte carlo (QMC) sobol sequence parallel kinematic mechanism (PKM)
DOI：10.11916/j.issn.1005-9113.2015.05.001
Clc Number:TH164
Fund:
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Accuracy Analysis for 6-DOF PKM with Sobol Sequence Based Quasi Monte Carlo Method
本站小编 哈尔滨工业大学/2019-10-23
相关话题/Accuracy Analysis 6-DOF PKM Sobol Sequence Based
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