例句與用法

1. Analysis of water flow rate during cooling operation of coke drum
   焦炭塔冷焦水流量的分析
2. The stress analysis of temperature field and thermal stress field on coke drum
   儲液容器直線勻加速運動時相對靜止液體的受力分析
3. The calculation results indicate that the outboard of drum walls fall in plastic yielding at the same time the rising cooling water reaches the height of that point and the yield region becomes narrower and narrower when it comes closer to the circumferential strake weldments , which explains the reason coke drums experience bulging and cracks occur in the weld seams portions of shell to shell after long in service
   計算結果表明：塔壁外側在冷卻水面到達的瞬間進入塑性屈服，筒節(jié)中部塑性屈服區(qū)較大，當靠近焊縫時塔壁的塑性變形區(qū)逐漸縮小直至消失，塔壁塑性屈服區(qū)的分布特點解釋了塔體長期使用后發(fā)生鼓凸變形及簡體與焊縫連接處產生裂紋的原因。
4. In this paper , the high - temperature low - cycle fatigue life and fatigue crack propagation life tests are carried on the cylindrical axial symmetry specimens having precrack or non - precrack with different types of notches of 16mnr steel in common use in the petrochemical industry contacting coke drum equipment , the stress / strain and the range of stress / strain of dangerous points are received through stress analysis of the specimens using finite element program under multi - axial stress state . at last , the equations of evaluating the high - temperature low - cycle fatigue life and the fatigue crack propagation life are found through using the least - square regression method
   本文采用無預裂紋和帶預裂紋環(huán)狀缺口圓柱形試樣，進行了石化焦炭塔設備常用材料16mnr多維應力狀態(tài)下不同缺口形式的高溫低周疲勞總壽命試驗及裂紋擴展壽命試驗，并利用有限元程序對試樣缺口周圍及裂紋尖端附近進行了軸對稱多維應力狀態(tài)下的應力、應變場分析，來評價材料不同條件下的高溫低周疲勞總壽命和裂紋擴展壽命，最后利用最小二乘回歸方法，得到了該材料高溫低周疲勞總壽命和裂紋擴展壽命評價方程。