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 stressσ1of 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 stressσ2of each part of front with a stroke sensor 31 and a pressure sensor 32. With the stressσ1andσ2, a correction coefficientαcorresponding 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 stressσ1of each part of front by a stress detector 4, and the stressσ1is corrected with a correction coefficientαand stressσA, after correction is obtained. COPYRIGHT: (C)2003,JPO