METHOD FOR DETERMINING STRAIN MEASUREMENT POINT AND METHOD FOR MEASURING SERVICE LOAD USING THE SAME

摘要

PROBLEM TO BE SOLVED: To separately measure a composite input load for every load component by singly inputting a load for every load directional component to be separated/estimated on a simulation, selecting strain measurement candidate points, carrying out a static load test, and determining a final strain measurement point with noting a sensitivity, an independency and a linearity of a strain. ;SOLUTION: An FEM analysis (simulation) is first carried out to an object (e.g. an automobile front axle) 1. Strain measurement candidate points P1-P17 are grasped. A bench test is executed with the use of the actual part 1 to be measured, and the measurement points are limited. At the bench test, a load for each directional component is inputted, whether a strain is generated in accordance with a size of the load to the measurement candidate points P1-P17 (linearity), whether the strain is noticeably generated only to the load of a certain directional component (independency), and how much strain is generated to the size of the load (sensitivity) are noted. Thereafter, the part is tested during actual running. The strain actually generated at each measurement point is measured. A service load is estimated by a mathematic method.;COPYRIGHT: (C)2000,JPO