压铸模具的型芯变形失效很容易造成铸件的成批量报废。
During die casting, core deformation resulting in batches rejected castings is very easy.
在众机理中,主要是:腐蚀失效、环境断裂失效、变形失效和断裂失效。
They are mainly corrosion failure, environment fracture failure, distortion failure and fracture failure.
分析表明:该管线的变形失效是在加套管过程中工艺安排不当所致,在施工过程的试压期间引起了内管的外压失稳,使内管产生永久的变形。
The impact of some key construction links on destabilization of the external pressure of the inner pipes was analyzed and verified in the course of pope-line rebuilding.
简述了以变形失效准则为基础的基于性能的抗震结构设计理论进展概况,内容包括:基于性能的确定性抗震设计理论;基于性能的抗震可靠度设计理论。
The recent development situation on the certainty seismic design theory and the reliability seismic design theory based on structural performance is introduced in this paper.
不像钢铁或者其它材料一样,玻璃不会变形或者给出其它什么形式的失效预兆。
Unlike steel or other materials, glass does not deform or otherwise give advance warning of failure.
弹性静力学主要涉及力和变形之间的物性关系,以及弹性体的失效、与失效有关的设计准则。
Elastic statics mainly relates to the connection between force and transmogrification, elastic body's invalidation, the guide line of design in invalidation.
运用有限元分析方法,对齿轮联轴器进行应力、变形的分析,找出齿轮联轴器的失效原因并对它的结构设计进行了优化。
Adopting finite element analysis method, the stress and deformation of gear coupling is analyzed, the cause of gear coupling failure is found, and the structure is optimized.
磁流变液阻尼器能够有效地改善被动隔震系统的性能,可保护隔震系统因过大的水平变形而产生失效破坏。
Magnetorheological fluid damper can effectively improve the performance of passive isolation system and protect deformation of isolation layer against damage.
发动机的主要部件变形从而导致漏水漏油,机油也会沸腾从而失效。
Major engine parts can warp causing oil and water leaks and the oil will boil and become useless.
分析了翻车保护结构的变形模式和失效机理。
The paper analyzed the deformation mode and failure mechanism of turn-over protection structure.
分析深井煤层巷道围岩变形特征和支护失效的原因,提出此类巷道的内外结构耦合平衡支护原理。
The deformation feature of deep shaft coal roadway is analyzed, and the reason for many kinds of support failures is studied.
在多冲载荷作用下,零部件大都会在其接触表面出现宏观可见的变形,并引发各种缺陷,从而导致零件损伤失效。
Under the effect of this kind of load, there are microscopic deformations and various disfigurements appear on the contact surface of the parts, and then lead to damage and failure.
从结构力学角度来研究阀芯的变形及应力分布情况,进行流固耦合分析,研究其失效的可能原因。
This paper investigate the distributing complexion of distortion and-stress of valve core, make the analysis of coupling of fluid and solid, investigate the reason of invalidation.
分析其失效原因为铅合金在外力作用下,产生塑性变形引起的低周疲劳,造成断裂。
Through analysis, the failure reason was confirmed as that the low cycle fatigue caused by plastic deformation occurred in the lead alloy, thus the fracture occurred.
机械密封产生变形会严重影响其工作性能,甚至导致磨损和早期失效。
The deformation of mechanical seals would seriously affect their working performance, even resulting in wear and early stage failure.
结果表明,油管偏磨大大降低了油管抵抗变形的能力,尤其油管双面偏磨更容易导致油管失效。
The result shows that the eccentric wear of tubing greatly decreases the deformation resistibility capacity and the two-side eccentric wear of tubing leads to more serious tubing failure.
叉车货叉失效方式主要表现为塑性变形超差,脆性断裂和早期疲劳断裂。
Fork failure of a forklift truck mainly takes a form of plastic deformation exceeding allowable limit, fragile breakage and early stage fatigue breakage.
在预应力锚索锚固段界面力学特性试验的基础上,研究锚固体界面在荷载作用下的变形规律及失效条件。
Based on the test of interfacial mechanics of prestressed anchorage segment, the interfacial deformation laws and the failure conditions under different loads are studied.
探讨了管道三通塑性失效有限元分析中的建模技术,包括变形参量选取,网格收敛性研究等。
The finite element analysis techniques and building model approach, including the mesh convergence study and the selection of deformation parameters etc.
探讨了直埋供热管道的失效,针对局部失稳和椭圆化变形,提出了设计要点。
The failure of directly buried heat-supply pipeline is discussed, and the design essentials are put forward in accordance with local buckling and ovalization deformation.
结果表明,精铸热锻模的主要失效形式为热磨损、塑性变形、热疲劳裂纹、冲击疲劳破断和脆性断裂。
The results show that hot-forged cast dies take thermal wear, plastic deformation, thermal fatigue, impact fatigue fracture and brittle fracture as predominant failure patterns.
齿面常见的失效形式有齿面点蚀、齿面磨损、齿面胶合和齿面塑性变形等。
Failure mode of tooth surface is varied such as teeth surface pitting, teeth wear, teeth bonding and teeth plastic deformations and so on.
研究表明腹板最上排螺栓孔受挤压,发生延伸变形为剪力板连接失效的最主要形式。
Research shows that elongation of the highest holes in the beam web is the main pattern of failure.
在热压模缎中,模具失效的主要模式是腐蚀作用、热疲劳、机械疲劳和永久性即塑性变形。
In hot impression die forging, the principal modes of die failure are erosion, thermal fatigue, mechanical fatigue and permanent (plastic) deformation.
性质与材料结构之关系及变形与失效机构。
Relationship of mechanical behavior to material structure and mechanisms of deformation and failure.
存在一类特殊情况,当入射波前的零点恰好通过各变形镜所在位置,补偿拟合基本失效,应注意避免。
A case should be a - void when the zero positions of incident wavefront are concurrent with actuator that causes failure of compensation.
存在一类特殊情况,当入射波前的零点恰好通过各变形镜所在位置,补偿拟合基本失效,应注意避免。
A case should be a - void when the zero positions of incident wavefront are concurrent with actuator that causes failure of compensation.
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