boiler stud 中文意思是什麼

boiler stud 解釋
鍋爐雙頭螺栓
  • boiler : n. 1. 煮器（壺、鍋等）；熬煮東西的人。2. 汽鍋，鍋爐；〈美俚〉酒類干餾器。3. 〈俚語〉導彈。
  • stud : n 1 大頭釘；飾釘；【機械工程】雙頭螺栓，柱（頭）螺栓 （＝stud bolt） 軸；端軸頸；銷子，中介軸；（...
  1. These stud " can be concluded as following : on the basis of the bhw - 35 steel p - s - n curve and its da ' dn growth law the method of low - cycle fatigue life evaluation of 401 t / h boiler was proposed. and a mechanics model was suggested for calculating the stress of internal pressure suffering elbow. with the elbow fatigue test, a method of evaluation the fatigue growth life of pressure suffering elbow is recommended ; and the elementary use of damage mechanics on the fatigue life evaluation of the boiler drum

    本文創新點為：在bhw - 35鋼的p ? s ? n曲線及da / dn擴展規律的試驗研究基礎上，提出了410t / h鍋爐汽包的低周疲勞壽命分析與預測方法；建立了一種橢圓截面變厚度彎管承受內壓時的應力計算力學模型，通過壓力彎管的疲勞試驗，本文推薦其低周疲勞擴展壽命預測方法；將損傷力學應用到鍋爐汽包疲勞壽命預測做了初步的探索。
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