新しい製品衝撃強さ評価試験方法の提案(機械力学,計測,自動制御)

概要

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Based on the shock fragility test according to JIS C 0041 or IEC 68-2-27, we can judge whether the products (specimens) will be damaged by a specified shock pulse. However it is difficult to determine whether or not the product will be damaged by another shock pulse. We developed a test method to check the safety zone against mechanical shock on products whereas the safety zone against mechanical shock must be specified before this test (Checking method of safety zone against mechanical shock). On the other hand, there are also some problems in the JIS Z 0119 and ASTM D 3332. One of these is the dependency of the critical acceleration on the velocity change of shock pulses. Another is the possibility of reverse phenomenon in the critical acceleration shock test. Besides, there is a possibility of the existence of plural damage boundary curves of a product which has more than one fragile part. In order to solve these problems, we proposed a new evaluation test method for the damage boundary curve of products. This test method clears up these problems. In addition, only one product needs to be broken during this proposed test method (Damage boundary curve avaluation test).
社団法人日本機械学会の論文
2001-12-25