英和和英

出典:『Wikipedia』 (2011/02/27 15:21 UTC 版)

英語による解説

引用

Accelerated life testing is the process of testing a product by subjecting it to conditions (stress, strain, temperatures etc.) in excess of its normal service parameters in an effort to uncover faults and potential modes of failure in a short amount of time. By analyzing the product's response to such tests, engineers can make prediction about the service life and maintenance intervals of a product. To accelerate a test, engineers use several techniques. Commonly, the rate of loading is increased. For example, an automotive suspension spring may be tested at several hundred compression–rebound cycles per minute. In service, the spring may experience one hundred or fewer cycles per minute. As a result, the spring fails sooner, but at the same number of cycles, so good data is collected, but in a much shorter time than it could be gathered in the actual application.