Reliability Qualification Test of a Unmanned Control Robot System for an Excavator

Back, Seung Jun; Son, Young Kap; Kim, Jun Hee; Lee, Mi Kyung

doi:10.3795/ksme-a.2015.39.4.397

Cited by 1 publication

(1 citation statement)

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“…In ref. [16], an accelerated life test was performed on individual components to calculate the reliability of the entire system from the reliability of each component of the robot, and the average lifetime of the system was estimated from the results. In ref.…”

Section: Introductionmentioning

confidence: 99%

Optimal Robot Motion for Accelerated Life Testing of a 6-DoF Industrial Robot

et al. 2020

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In order to verify the reliability of drive components for industrial robots, component-level life tests must be accompanied by a system-level life test using actual robots in which predefined robot motions are repeated throughout the test. To properly verify the durability of drive components through a system-level life test, it is important to design test modes so that the required test time is the same for all joint drive components of the robot, and it is necessary to design test modes with a high acceleration factor so as to shorten the required test time as much as possible. To solve this problem, the present research proposes a method for designing robot motions that makes the accelerated life test time for all the drive components of the robot equal. In particular, we solve a dynamic based motion optimization problem for an industrial 6-DoF (degrees-of-freedom) robot that minimizes the AM-GM (arithmetic mean to geometric mean) ratio of the acceleration factors of each joint. The results show that -continuous test modes with the same acceleration factor, which is inversely proportional to the cycle time of the robot motion, can be derived.accelerated life testing; acceleration factor; reliability; dynamic motion planning; optimal robot motion

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Section: Introductionmentioning

confidence: 99%