IMPACT ABSORPTION ENERGY ABSORPTION PERFORMANCE EVALUATION METHOD

To provide an impact absorption energy absorption performance evaluation method that can accurately evaluate impact absorption energy of a buffer membrane formed in a test piece.SOLUTION: An evaluation method, which evaluates an absorption performance of impact absorption energy of a buffer membrane...

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Hauptverfasser: MIYASHIRO HIROKI, ITO JUNJI, ARAYOSHI TAKATOSHI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide an impact absorption energy absorption performance evaluation method that can accurately evaluate impact absorption energy of a buffer membrane formed in a test piece.SOLUTION: An evaluation method, which evaluates an absorption performance of impact absorption energy of a buffer membrane 2, is configured to: load a test piece 1 having the buffer membrane 2 formed so that the buffer membrane is directed downward, and the buffer membrane is put into contact with a base table 13; load a spacer 14 having a first through-hole 14a formed and having compressibility in the test piece 1; further, load a presser plate 17 having a second through-hole 17b formed in a position matching the first through-hole; press the test piece 1 to the base table 13 by the presser plate 17; cause a heavy bob 5 to be dropped on the test piece 1 through the first through-hole and second through-hole from above the presser plate; measure a rebound height H2 of the heavy bob; and evaluate an absorption performance of the impact absorption energy under a compression condition of the buffer membrane 2 on the basis of the rebound height H2 of the heavy bob.SELECTED DRAWING: Figure 1 【課題】テストピースに形成された緩衝皮膜の衝撃吸収エネルギーを、正確に評価することができる衝撃吸収エネルギーの吸収性能の評価方法を提供する。【解決手段】緩衝皮膜2の衝撃吸収エネルギーの吸収性能を評価する評価方法は、緩衝皮膜2が形成されたテストピース1を、緩衝皮膜を下方に向けて、緩衝皮膜をベース台13に接触するように載置し、テストピース1に、第1貫通孔14aが形成された圧縮性を有するスペーサ14を載置する。ついで、第1貫通孔と一致する位置に第2貫通孔17bが形成された押さえ板17を載置し、押さえ板17でテストピース1をベース台13に押さえ込む。さらに、押さえ板の上方から第1貫通孔および第2貫通孔を通してテストピース1上に重錘5を落下させ、重錘の跳ね返り高さH2を測定する。重錘の跳ね返り高さH2に基づいて、緩衝皮膜2の圧縮条件下における衝撃吸収エネルギーの吸収性能を評価する。【選択図】図1