弧坑 的英文怎麼說
中文拼音 [húkēng]-
Cracking failure of centrifugal compressor ' s impellers was analyzed, the welding craters in the impellers led to stress concentration. the unsteady gas flow accelerated the development of cracks in the impeller
摘要針對某石化公司離心壓縮機葉輪多次發生開裂、掉塊等故障以及裂紋形成機理進行了分析。分析結果表明了葉輪開裂原因系疲勞開裂，葉輪焊接缺陷產生了焊接弧坑，造成表面應力集中，氣流激振加速了裂紋擴展。External defects : undercut, overip, arc pit, gas cavity in surface, crack in surface
外部缺陷：咬邊、焊瘤、弧坑、表面氣孔、表面裂紋。Through the excel program, and combining the inside and outside environment of the excavation and stress field and displace field, the data of stress and displacement of points are analyzed in variable depth and load grade and terminal state. the spss software has been applied to the statistics of geometry parameter of failure surface, and the failure surface criterion is created by the linearity regression from d ( the longest horizontal distance between the failure surface and the side face of the slope ), ho ( the depth
此外，應用spss軟體對試驗破壞滑弧的幾何參數進行統計分析，並對滑弧的最大水平深入距離d及d處至坑底的高度h _ 0結合各水理指標進行多元線性回歸，建立滑面的判據，並對此判據進行修正，且用實際工程對其進行評價，通過反算已知滑面的c 、值，表明邊界條件對破壞形式有極大的干擾作用，所直接看到的破壞類型土體不是發生整體滑移破壞，而是剝落式的潰屈破壞。When the welding current is added, on the one hand, the section of arc will more or less increase, so the fusion width will increase ; on the other hand, the depth of arc crater will increase
焊接電流增加時，一方面是電弧截面略有增加，導致熔寬增加，另一方面是電流增加促使弧坑深度增加。When the welding current is added, the quality of heat of the arc will increase, so both the volume of molten puddle and the depth of arc crater will all increase, and the weld depth will increase when the weld is cooling
焊接電流增加時，電弧的熱量增加，因此熔池體積和弧坑深度都隨電流增加，所以冷卻下來后，焊縫厚度就增加。At last, a 3d - fem model is used for a soil - nailed supporting system in a classical two - layer distribution. the spatial distribution of horizontal displacement is reached by the analysis. some other analyses are made for the different ratio of length of foundation pit and the effect of the ratio on the largest horizontal displacement of the slope is analyzed
在邊坡破壞模式研究中利用有限元方法對成都砂卵石地區典型的二元體土層基坑開挖進行了數值模擬，認為其破壞並不取均質土的圓弧破壞模式，而是一種折線形破壞模式，同時建議在噴錨網支護設計中錨桿長度的變化和極限平衡分析中考慮折線形滑動面。分享友人