Institutional research ( ir ) which originated in the united stated has experienced four periods 摘要起源于美国的院校研究经历了萌芽阶段、雏形阶段、成型阶段和完善普及化阶段。
Above elaborated explains two points : first , although there are many advantages of the computer simulation , but can not be completely divorced from or replace tests , finally is must depend on experiments performs to confirm . second , computer simulation is a trend to replace test , but the key question is to resolve the model error . in view of former , the author of this study focusing on the principle of emphasize the test , researched the techniques factors of the components of the vehicle body works on the anti - collision capability 残余应力会有一定程度的释放,材料的强化会随之变化,那么以往的研究中之考虑了冲压成型阶段带来的厚度分布不均和残余应力、应变,却忽视了由于高温固化时温度升高所带来的残余应力释放,这样最终会直接影响到碰撞模拟仿真的精度,从而导致车身结构的碰撞安全性指标的不精确。
成型: shaping; forming阶段: stage; phase; period; gradat ...模型阶段: mockup stage选型阶段: selection phase原型阶段: prototype stage社会转型阶段: social transformation era在造型阶段应尽量消除有: geom check他经历了文化冲击的典型阶段: he arrived expectant and happy and enjoyed his first days very much成型: shaping; forming 爆炸成型 explosive forming; 冷滚成型 cold roll forming; 这箱子被压得不成型了。 the box was crushed out of shape阶段: stage; phase; period; gradation; bench 分阶段 by stages; in stages; 分阶段撤军 phased troop withdrawal; 过渡阶段 transitional stage; 历史阶段 historical period; 初 [中; 高]级阶段 the junior [middle; senior] stage; 它还处于萌芽阶段。 it is still in an embryonic stage. 这个提案还没有通过讨论阶段。 the proposal has not yet passed the discussion stage.; 阶段发育 [生物学] phasic development; 阶段分析 phase analysis型阶梯形机械格栅: jtgs type stegrid小土滑阶坎小型阶地: terracette成型,装配: a embly; assembly成型(板坯): felting成型,发展: shape up成型,造型: molding成型板: die plate; dieplate; former plate; tamping plate成型厂: molding factory; moldingfactory成型车: make-up carriage成型带: building belt成型的: briquetability; fashioned; shaped成型底: unit soles; upper material成型端: forming ends of成型法: method of forming成型杆: curved lever