但是被检查的工程芯柱都与铝合金立柱固定,这样就会失去自由伸缩作用,当热胀冷缩时产生较大的内应力。
But checked Chad engineering core column is fixed with aluminum alloy column, so will lose freedom scale effect, when heat bilges cold shrink large internal stress.
在二维或三维的情况下,屈服极限是当所有应力分量的某个函数达到某一固定值时达到的。
In two and three dimensions the yield limit is reached when a certain function of all the stress components reaches a fixed value.
目的:研究固定桥基牙牙周膜厚度不同时牙周膜内的应力分布,为临床工作提供理论依据。
AIM: to study the stress distribution of periodontal membrane of fixed abutment tooth with different thickness, and provide theoretical basis in clinic.
在相同垂直载荷和水平载荷情况下,分析基牙牙周膜厚度不同时固定桥的应力分布。
Stress distribution of fixed bridge loaded with the same vertical and horizontal forces was analyzed during different thickness of periodontal membranes around abutments.
目的:探讨氧化锆梯度复合羟基磷灰石内固定材料的应力遮挡率的变化。
Objective: To approach the change of stress shielding rate of internal fixation materials made of nano zirconia gradient compounded with hydroxyapatite.
背景:普通金属接骨板对固定骨段具有强大的应力遮挡作用,且对骨组织生长无诱导及引导作用。
BACKGROUND: Common metal bone fracture plate had powerful stress force shelter reaction in fixed bone segments and moreover, is has no induction and guiding reactions in bone growth.
目的观察基牙牙槽骨发生一定程度吸收时,固定义齿应力分布的变化。
Objective To observe how the stress distributes when the alveolar absorption appears upon the abutments of fixed partial denture (FPD).
电缆固定头可消除电缆应力,有2种不同尺寸。
辊模拉拔变形区内的应力应变分布特征完全不同于固定辊模拉拔,而倾向于轧制过程。
The distribution of stresses and strains in the deformation zone under roller dies drawing is different from that under fixed rolls drawing, but tends towards rolling.
结果椎弓根螺钉内固定折断原因为局部应力集中及异常活动,多为技术因素。
Results The causes of spinal internal fixation broken were stress concentration and abnormal movement of internal fixation, and was mainly relative to poor techniques.
目的:研究下颌后牙固定桥基牙周围牙槽骨表面的应力状态。
Objective: Stress levels of the surface of alveolar bone around bridge abutment of posterior fixed bridge were studied.
目的探讨哪些生物应力对钢板固定的骨折断端微动影响较大。
Objective To discuss which kind of biological stress have greater impact on the jiggle of the armor plate fixed fracture broken end.
从聚乙烯垫片与骨骨水泥界面间的应力传导也有望降低,从而降低了骨水泥和骨之间的固定的松动几率。
Stress transfer between the polyethylene insert and the interface between cement and bone would be expected to be reduced, thus reducing the chances of loosening fixation of cement to bone.
在相同垂直载荷和水平载荷情况下,分析固定桥基牙牙周膜厚度不同时牙周膜内的应力分布。
Stress distribution of periodontal membrane loaded with the same vertical and horizontal forces was analyzed during different thickness of periodontal membranes around abutments.
前言: 目的:观察松动牙作基牙时,固定桥支持组织的应力分布。
Objective:To observe the stress distribution of the FPD, which used the loosen teeth as abutments.
分别在垂直载荷和斜向载荷下观察下颌第一磨牙磨牙半切术后不同固定修复设计对牙周支持组织应力分布情况。
The stress distribution of the reserved root with different prosthodontic design after hemisection therapy under the vertical loading and obliquely loading was observed.
当地层较软时,弹性约束时管道中的最大应力比固定端约束的要大,而临界悬空长度相差不多。
When the sea soil layer is, softer, the greatest stress for elastic constraints is larger than that for fixed one. The difference in critical length of hanging segment is not much.
结论:普通钢板内固定术破坏了骨折端血运,存在应力遮挡和应力集中,失败率高。
Conclusions: Commonplace fixation damaged fracture blood circulation, had stress shield and concentration of the stress. It's failure rate was high.
然后对三种固定方法对固定骨段的应力遮挡率、不同加载方向的弯曲强度和扭转强度进行测试。
The stress shielding rate, bending strength of different directions and torsion strength of the three different fixation methods were measured and compared.
采用有限元分析软件ANSYS,对某大型固定管板式换热器管板的稳态温度场和热应力场进行了三维有限元分析。
By use of finite element analysis software ANSYS, the steady-state temperature field and thermal stress field in the tubesheet of a large fixed tubesheet heat exchanger were analyzed.
目的按照无应力遮挡原理,设计一种治疗尺骨鹰嘴骨折的新型的无应力遮挡的外固定器,使其取得更佳的临床疗效。
Objective an external fixator was designed for curing the ulna olecranon fracture according to the principle of non-stress shelter.
结果表明,在剪应力作用下,在界面附近和固定边界附近存在一组边界效应解。
The results show that under shear stresses there are a group of boundary layer solutions near the interface or the fixed boundary.
同时,本文分析了位移波和应力波在固定端、自由端和弹性支承端的反射特点。
At the same time, the reflection characters of strain wave and displacement wave are analyzed at the fixed end, free end and elastic bearing end.
由于结构原因固定管板式换热器所产生的温差应力对设备的安全构成很大威胁。介绍了温差应力产生的原因及降低温差应力的措施。
Equipment safely is threatened with the thermal stress created by fixed-tube sheet exchanger for its structure. Causes of thermal stress have been analyzed and the countermeasures proposed.
ALN钉具有力学分布合理、应力遮挡小、内固定稳定可靠,手术操作方便,能早期恢复伤肢功能的特点。
ALN had reasonable mechanic distribution, low stress shielding rate and fixation stability, also was easy to operate with rapid rehabilitation.
结论脊柱固定可导致相邻节段的应力增加,并且矢状面异常固定角度会更加破坏其生物力学环境。
ConclusionSpinal fixation can increase the stress at the adjacent segment, and lumbar malalignment fixations may further worsen this biomechanical condition.
进行天然牙与种植体联合支持固定桥修复时,可在种植体端设计套筒冠固位体,以缓冲种植体周围骨组织的应力水平,防止或减轻种植体支持组织的损伤。
In designing the fixed bridge supported by tooth-implant, we can design telescope retainer on implant to reduce the stress of bone tissues around the implant and to prevent damages to bone tissues.
目的:研究固定桥基牙牙周膜厚度不同对双端固定桥应力分布的影响。
AIM: To study the stress distribution of rigid fixed bridge on the different thickness of periodontal membranes around abutments.
目的观察下颌第一磨牙半切术后两种双端固定桥修复对牙槽骨应力分布的影响。
ObjectiveTo observe the effects of the two kinds of rigid fixed bridge design on the stress of the alveolar bone of mandibular first molar after hemisection.
目的解决目前外固定器普遍存在的如稳定性差、操作繁琐、应力遮挡大、扩展功能差等功能缺陷的问题。
Objective To remedy the general defects of external fixator such as poor stability, complexed operation, strong stress shielding and bad extension function.
应用推荐