直針牙 的英文怎麼說

中文拼音 [zhízhēn]
直針牙 英文
straight-pin teeth
  • : Ⅰ形容詞1 (成直線的; 硬挺的) straight; stiff 2 (跟地面垂直的; 從上到下的; 從前到后的) erect; v...
  • : Ⅰ名詞1 (縫衣物用的工具) needle 2 (細長像針的東西) needle like things 3 (針劑) injection; sh...
  • : 名詞1. (牙齒) tooth 2. (象牙) ivory 3. (形狀像牙齒的東西) tooth-like thing 4. (姓氏) a surname
  1. Based on ansys, this paper studies stress concentration on single notch of eight kinds of high strength bolts used in grid structure, obtaining their stress concentration coefficients, discussing the effect of ascending angle, bottom radius of screw thread and bolt - ball on stress concentration, introducing their effect coefficients of a1, a2, a3, putting forward the formulae of stress concentration coefficient

    本文以ansys有限元軟體為研究手段,對網架螺栓球節點的8種螺栓規格進行單缺口應力集中分析,定量求得相應的應力集中系數k _ t ;論述了螺紋升角、螺紋根圓角半徑r及球栓徑比d / d對k _ t的影響,並引入相應的影響系數_ 1 、 _ 2及_ 3 ,最終提出了應力集中系數k的計算公式。
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