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      最小預緊載荷

      發布時間 : 2021-09-09 09:27:19
      承受振動載荷的彈簧在安裝時需要足夠的預緊載荷來防止上表面內邊緣(橫截面I )開裂。殘余拉應力的影響將導致彈簧在強壓處理過程中上表面內邊緣產生徑向表面裂紋。
       
      經驗表明,對D IX 標準碟形彈簧來講,最小壓力縮應力工應為大約-600N / InmZ 。這主要取決于預緊變形量Su 二0 . 15 , , ho ' , , 0 . 20 , h 。,壓平狀態時應力較低的彈簧其預緊變形量相應的可以較小。相反,壓平狀態應力較高的彈簧則需要較大的預緊變形量。
       
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