STRENGTH EVALUATION METHOD FOR WORK MACHINE, STRENGTH EVALUATION SYSTEM, APPARATUS AND PROGRAM FOR CONDUCTING STRENGTH EVALUATION

摘要

PROBLEM TO BE SOLVED: To accurately evaluate the strength of front structure by in-place tests.;SOLUTION: A hydraulic shovel 20 is tested in-place by a specific operation pattern, and stress σ₁ of each part of front is detected with a stress detector 4. A hydraulic shovel 30 of the same model as the hydraulic shovel 20 is tested in-place to detect operation pattern of the hydraulic shovel 30 and stress σ₂ of each part of front with a stroke sensor 31 and a pressure sensor 32. With the stress σ₁ and σ₂, a correction coefficient α corresponding to the operation pattern is calculated. A hydraulic shovel 10 of the same class as the hydraulic shovel 20 and 30 is tested in-place with a specified operation pattern to detect the stress σ₁ of each part of front by a stress detector 4, and the stress σ₁ is corrected with a correction coefficient α and stress σA, after correction is obtained.;COPYRIGHT: (C)2003,JPO