| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a temperature measurement method and a stress measurement method which are capable of reflecting a harmonic component of stress on a measurement object.SOLUTION: The stress measurement method includes: a stress measurement step of measuring stress generated on an outer ring specific part of a constant velocity joint, by a strain gauge; a stress frequency decomposition step of decomposing data of the stress on the outer ring specific part into stress signal intensities per frequency to obtain stress analysis data; a frequency extraction step of extracting a specific frequency based on the stress on the outer ring specific part from the stress analysis data; a temperature measurement step of measuring a temperature of the outer ring specific part by infrared thermography; a temperature frequency decomposition step of decomposing data of the temperature of the outer ring specific part into temperature signal intensities per frequency to obtain first temperature analysis data; a temperature extraction step of extracting a temperature signal intensity at the specific frequency from the first temperature analysis data to obtain second temperature analysis data; and a conversion step of converting the second temperature analysis data to temperature data.</p> |
