查询词典 admissible deformation
- 与 admissible deformation 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
With large-scale model tests of open-cut box tunnel and shallow bored horseshoetunnel intersecting orthogonally and obliquely with active ground fissure zone individually, the adaptability of sectionalized tunnel passing through active ground fissure is studied,theresults show that the sectionalized tunnel with flexible joint can bear very large sheardeformation,and the deformation and secondary stress of adjacent sectionalized tunnel underthe action of ground fissure is small,meantime many sectionalized tunnels can eliminatepartly the effect of active ground fissure movement,have a good capability of adapting itselfto the large deformation.
8通过分段设缝的明挖箱形隧道和浅埋暗挖马蹄形隧道分别正交和斜交穿越地裂缝带穿的大型模型试验,对分段设变形缝的地铁隧道穿越地裂缝带的适应性进行了研究,结果表明分段式柔性接头隧道能承受较大的剪切变形,相邻衬砌管段变形和次生应力均较小,同时多段设变形缝具有很好的消化地裂缝变形的效果,从而说明多段设变形缝加柔性接头连接的地铁隧道具有较强的适应地裂缝活动大变形的能力。
-
At first FEM is used to calculate the deformation of the right abutment of the Danjiang arch dam; and the influence of the fault F1 on the deformation of the abutment is analyzed emphatically.
用有限元计算了单江拱坝右坝肩岩体的变形,着重分析了断层 F1 对于坝肩岩体变形的影响。
-
The main cause of deformation of a converter shell is temperature rising of the converter shell, a economical and effective method to reduce the temperature and creep deformation is adopting a heat insulation layer of asbestos board.
转炉炉壳温度升高是炉壳变形的主要原因,采用内衬石棉板隔热是降低中小型转炉炉壳温度、减轻炉壳蠕变变形的经济有效措施之一。
-
The results show that the ratio of slope has an impact on slope deformation; and that the angle and the range interval of anchors influence slope deformation. The pertinent proposal for design of main parameters of anchor frame beam is put forward so as to offer reference for engineering optimum design.
数值分析及结果表明,坡率与膨胀土路堑边坡变形密切,锚杆框架梁参数中锚杆布设角度和间距对膨胀土边坡变形影响较大,同时对锚杆框架梁的主要参数提出相关的建议,为工程和设计优化提供了参考。
-
In order to control the deformation volume of bearing ring during heat treatment, the deformation principle of it was analyzed, and several effective methods were adopted as well, which is of significance for increasing production efficiency and reducing power consumption.
通过对热处理变形原理的分析,采用多种方法有效控制了轴承套圈在热处理过程中的变形量,对提高生产效率、降低消耗具有很大意义。
-
The survey and analysis show that when the rut depth is deeper(more than 60 mm),the greater deformation would be found both in wearing course and binder course,and the compression deformation ratio of binder course is higher than that...
测量分析结果表明,车辙深度较深(大于60mm)时,上、下面层均发生了较大的变形,且下面层的压缩变形率大于上面层;当车辙深度较浅(小于40mm)时,下面层的压缩变形率小于上面层。
-
This paper using the FEM software Marc, for the 50 and 60 degree V groove of flat plate butt joint simulate the one-layer and three layers welding, finish each welding and cooling it down to room-temperature then start the next welding true represent process and get the temperature field, residual deformation and welding residual stress, according to the theory analysis and empirical equation verified the temperature field and residual deformation all correct, comparison with experiment verified the welding residual stress regularity and correctly.
本文利用有限元软件Marc,对开60°和50°V型坡口的平板对接接头,动态的模拟了单层单道打底焊,焊完一道后让试件冷却到室温以及单层单道满焊,每焊完一道后让试件冷却,然后再焊下一焊道,道间温度≤200℃,在以此为初始边界条件下开始下一道的焊接,真实的再现了焊接过程,得出了温度场,残余变形和残余应力场的分布规律,根据理论分析及经验公式验证了温度场以及残余变形的正确性,角变形的大小,这些结果与数值计算相吻合。通过与实验测得的残余应力进行比较,验证了焊接残余应力的分布规律及模拟的正确性。
-
In considering the bearing and fit with clearance, the material should be noted that at high temperature to become soft and easy to deformation characteristics, as well as many high temperature from ambient temperature to the temperature change caused by the possibility of permanent deformation must.
在考虑轴承的配合过盈量和游隙时,要注意到材料在高温下变得松软而容易变形的特点,以及多次由常温到高温的温度改变引起一定永久变形的可能性。
-
In this project, the selection criteria of matrix and reinforcement for obtaining composites with high strength and toughness are determined. The as-cast and aged microstructures of composites reinforced with particles of different strength are observed, and their metallurgical conditions and stabilization mechanisms are analyzed. The aging precipitation behaviors and mechanisms are studied. Some characteristics of nano-materials (micro-distortion areas) are found in 150nm- Al2O3p/Al composites and their formation mechanisms are expatiated. The "flexible" restriction to the deformation of the matrix by low strength AlN particle is observed by in-situ TEM and SEM techniques, and the mechanisms of its resist on cracks propagation and its contribution to composite strength are revealed. The high temperature deformation behaviors of Al2O3p/Al composites are studied. A rare-earth coating is established on sub-micron Al2O3 particles, leading to an improvement in wettability between coated Al2O3 and liquid aluminum and a decrease in infiltration pressure. The strength and ductility of coated particles reinforced composite are also increased. The interfacial characteristics, bonding structures and their formation mechanisms are studied, and the crystal orientation relationships between reinforcement particles and aluminum matrix are investigated. Finally a lighter composite with better balance of strength and damping properties is reinforced with hollow ceramic microballoons of ultra-lower strength.
本项目发现了获得高强度和高韧性复合材料的基体、增强体选择依据;观察了各种强度质点增强复合材料的铸态和时效态微观组织,分析其微观结构形成的金属学条件及稳定性机理,研究了其时效析出规律和时效机制,发现了150nmAl2O3颗粒增强铝基复合材料基体中的纳米材料特征,并解释了其形成机理;利用TEM和SEM动态拉伸技术发现了低强度质点AlN颗粒对变形协调的&柔性强化&机制,揭示了其对裂纹扩展的阻碍作用和对复合材料高强度的贡献;研究了中强度质点的Al2O3颗粒增强铝基复合材料的高温变形行为,并对其进行了稀土界面层设计与制备,改善了颗粒与铝合金之间的界面润湿性,降低了复合材料铸造渗透压力,提高了复合材料的强、韧性;研究了多种复合材料界面结构及形成机理,确定了增强体与基体之间的界面结合机制,分析了复合材料界面处的晶体学位向关系;最后制备了含微孔的中空型陶瓷颗粒增强的特种复合材料,得到了强度和阻尼综合性能较好的轻质复合材料。
-
The entrance section of FuXi Double-arched Tunnel is modeled in the fact of factual shallow buried and unsymmetrical pressure condition. Adopting the three heading construction method to simulate twelve kinds of construction projects, confirm reasonable construction orders and left and right tunnel face interval, systematically analyze and research the changing law of the tunnel deformation and surrounding rock stress in soft and cracked condition of surrounding rock,bring forward pertinent advices against construction disease; Build the deep buried tunnel model in middle section of tunnel , separately adopt the central heading bench cut benching method and the central heading full cross method to simulate ten kinds of construction projects, establish the reasonable construction orders, sidestep length and tunnel face interval, which are due to the deep buried tunnel, systematically analyze and research the change law of the tunnel deformation and surrounding rock stress in the section with good surrounding rock condition, bring forward the reasonable construction projects which can make sure of construction safety and save construction time; Because the central wall is disturbed many times during constructing process, its displacement and stress distribution is very complex.
富溪隧道进口段依照实际的浅埋偏压状况建立模型,采用三导洞法开挖模拟了12种方案,确定了合理的施工顺序和左右主洞掌子面错距,系统地分析研究了软弱破碎围岩浅埋偏压段施工的隧道变形和围岩应力变化规律,提出了防止施工病害的针对性建议;洞身段按深埋隧道建立模型,分别采用中导洞台阶法和中导洞全断面法模拟了10种方案,确立了适合深埋隧道的合理施工顺序、台阶长度和掌子面错距,系统分析研究了围岩较好深埋段施工的隧道变形和围岩应力变化规律,提出了兼顾施工安全和节省工期的合理施工方案;由于受到多次扰动,中隔墙的位移和应力变化规律较为复杂,通过对各种方案的对比分析,得出了中隔墙在施工不同阶段的位移变化规律、应力变化规律和应力分布规律,尤其对于浅埋偏压段隧道施工时中隔墙位移和应力变化规律做了深入研究,提出了合理的施工建议。
- 推荐网络例句
-
We got alerted a couple of times while we were down south that HETs were on the way to bring us back up north because things were going to go hot again, but it was just rumors.
南下的途中我们不只一次得到警告说重型装备运输车将拉着我们重新北上,因为局势正在变得重新紧张起来,但这只是谣传。
-
It's the one where they find the ghost in the salt mine.
这一集是演他们在盐矿找到鬼
-
Stamens 6, inserted at base of perianth tube, included; filaments short; anthers basifixed. Ovary ovoid-globose, 3-loculed; ovules several per locule.
雄蕊6,着生的在花被基部筒部,内藏;花丝短;花药基着子房球状卵球形,3室;胚珠数个每室。