The study make emphasis on the engaging and disengaging time of clutch translating process , the simulation results fit well with experiment results , and verified the correctness of simulating models 主要的关键是研究啮合和脱开过程的切换时间，仿真结果很符合实验结果，证明了模型建立的正确性。
In the material of fgh95 containing al2o3 inclusions , broken inclusion and debonded interface decrease the value of sif comparing with that of the same size crack without inclusions 结果表明，对于含al _ 2o _ 3夹杂的fgh95粉末高温合金材料，当夹杂裂开或界面脱开时，应力强度因子均小于将夹杂视为初始裂纹时的应力强度因子。
The main contents are as following : ( 1 ) finite element method ( fem ) is used to study the effects of broken inclusion and debonded interface on the stress intensity factors ( sif ) 本文围绕含夹杂粉末高温合金涡轮盘的裂纹扩展寿命问题，开展了以下工作： ( 1 )用有限元法研究了夹杂裂开以及夹杂与基体界面脱开对应力强度因子的影响。
But displacement relatively value of pipe liner structure is very smallness , the tie - in of pipe liner would not move and come away . and it is bigger that the level displacement value of substrate tie - in of pipe liner than upper 而管片衬砌结构的位移的相对值却非常小，不会发生错动和脱开，且管片衬砌结构接头处的下管片较上管片的水平位移值稍大。
The simulations get the variation curve of the torque acted on the helical gear spline during translating process , and get the important damping force acted on the middle part during engaging and disengaging process 仿真还求得了作用在螺旋齿花键上的扭矩在动态过程中的变化曲线；求得了作用在中间件上，起关键作用的阻尼力在啮合、脱开中的动态变化曲线。
After 60 days at 160 , 250 , 350 and 400 , u3si2 particles are compact with al - matrix , the meat did not crack and there were no phase change . fuel meat and clad binded tightly , no crack was found at the boundary of the meat and clad 从微观观察发现， u _ 3si _ 2颗粒与al基体结合紧密，没有碎化，芯体没有开裂，并且与包壳的结合处没有脱开及发现裂缝，芯体中也没有发生相变化，未发生铀硅颗粒向包壳侵入的现象。
Now scholars and institutions are producing a growing volume of research on leading indicators . the study have three characteristics , positive analysis are less than normative analysis , provincial research are less than national research , and research methods get behind 三是研究方法基本上没有脱开景气指数方法的框架,固定在先行、同步、滞后指标模式上,先行指标的遴选方法单一,大多数是时差相关分析方法和k - l信息量法。
After 20 days at 450 or 1 day at 500 , the u3si2 particles cracked and fragmented , there were a lot of cracks in al - matrix and reacted areas , there were also a lot of holes in the meat . the meat lost its continuity and perfection , and departed from clad . above 450 the volume fraction of the al - matrix and the u3si2 decreased and produced u ( al , si ) 3 in the meat , u3si2 particles invaded to clad 在450热循环20天后、 500热循环1天后，燃料板的厚度变化一般0 . 04mm ，燃料板的翘曲现象严重； u _ 3si _ 2颗粒开裂及破碎，基体中产生大量的裂缝，反应层也存在大量的裂纹及孔洞，芯体已失去连续性、完整性，并且与包壳脱开。
Consequently , on the basis of non - winkler foundation model , a finite - element method that utilizes foundation flexibility matrix into iterative calculation is proposed in this paper originated from the item " the optimal design theory and research of pile capping beam " sponsored by natural science fund of hunan province , which the continuity of soil mass can be accounted for under various boundary conditions , different loadings and irregular beam characters 本文结合湖南省自然科学基金项目“桩基承台梁优化设计理论与方法研究” ，针对非文克尔地基(半空间、线性变形层或单向压缩层地基模型等)上的桩基承台梁，提出一种利用地基柔度矩阵来进行迭代的有限单元法，可充分考虑梁下土体的连续性，并对基础与土体脱开、承台梁截面变化、梁体边界条件复杂、上部荷载类型变化以及梁下基桩承载力差异等情况进行分析计算。
The energy due to the beam ' s falling is overwhelming . this impact will do great harm to the sub structure . the beam ' s falling , mainly because the displacement of the pier ' s top supporting the beam makes the span become greater , or the pier ' s displacement brings the beam change its position , which makes it come away from the pier ' s top 对于简支梁桥，当地震作用发生时，落梁是一种主要的破坏形式，落梁的能量具有压倒性优势，冲击会给下部结构带来极大的影响，而坠落的原因，多数由于支承梁的两桥墩的墩顶位移而使跨度变大，或是因为桥台位移带动梁使梁错位，造成梁在墩顶处脱开。
