登录

双语推荐：过盈量

进入期刊文章
探讨不同过盈量的眶部种植体对骨界面应力分布的影响。方法:建立4种规格种植体过盈量分别为0.05、0.1、0.15 mm的眶部种植体-颅颌面骨三维有限元模型,计算并分析不同情况下的应力分布。结果:骨界面应力随着过盈量增大而增大,但在0.15 mm过盈量时,骨界面应力降低。10 mm种植体在0.1 mm及0.15 mm过盈量条件下界面应力值明显低于其他规格种植体。结论:0.1 mm过盈量符合临床要求,在眶部种植手术设计时因考虑长度和过盈量的影响。
Objective:To observe the effect of orbital implant shrink range on the stress distribution in bone-implant interface. Methods:The 3D finite element analysis of craniofacial and orbital implant models with the implant length of 3,4,6 and 10 mm,and with the shrink range of0.05,0.1 and 0.15 mm were established respectively.The stress in the bone-implant interface were calculat-ed and analyzed.Results:The stress increased with the increase of implant shrink range.The stress produced by the implant with 0.15 mm shrink range decreased.The stress of the implant of 10 mm was lower than that of other implants with the shrink range of 0.1 and 0.15 mm.Conclusion:The maximal implant shrink range of 0.1 mm in the model can meet the clinical requirements in orbital implant planning.

[ 可能符合您检索需要的词汇 ]

进入期刊文章
过盈量是与螺杆泵举升压力密切相关的参数。采用ANSYS12.0软件对GLB120-27型采油螺杆泵建立三维有限元模型,利用数值模拟的方法分析过盈量对举升压力的影响。取1/2个导程作为研究对象,得出在不同腔室压力下,过盈量为0.3mm时螺杆泵的临界接触压力,计算出其理论举升压力。依此方法求解出在不同过盈量下螺杆泵的举升压力,得出举升压力随过盈量的变化规律曲线和表达式,可为螺杆泵的优化设计提供理论依据。
In the consequence,improving the lifting pressure of screw pump has important practical value.Interference is closely parameter related with the screw pump lifting pressure,numerical simulation methods is used to analyze the impact which interference quantity on lifting pressure. ANSYS12.0 is used to establish 3D finite element model of GLB120-27 type of screw pump,tak-ing half of the lead as the research object,obtained the critical contact pressure under different chamber pressure while interference for 0 .3 mm,then calculate the theoretical lifting pressure. With this method used in lifting pressure under different interference,the conclusion is made for curve and expression which lifting pressure varies with the change of the over interference quanti-ty,which provides theoretical basis for the optimization design of screw pumps.

[ 可能符合您检索需要的词汇 ]

进入期刊文章
机车轮轴利用过盈装配来传递载荷，过盈量的大小影响组装应力。利用 ANSYS 软件建模，并对该结构进行非线性有限元分析，得到轮轴结构和热-结构应力场图。通过机车轮轴装配应力计算，给出了轮轴合理的过盈量。
Locomotive axle using interference fit to transfer load ,the amount of interference size effects assembly stress. Use of ANSYS software modeling and nonlinear finite element analysis on the structure , get the shaft structure and thermal structure stress field maps.Calculating the assembly stress of locomo-tive axle ,given reasonable the amount of interference of wheel and axle.

[ 可能符合您检索需要的词汇 ]

进入期刊文章
油套管特殊螺纹接头上扣扭矩及其构成对于提高接头结构完整性和密封完整性至关重要。在分析典型上扣扭矩曲线基础上,采用弹性力学厚壁圆筒理论和旋转台肩扭矩公式,建立了特殊螺纹接头上扣扭矩理论计算方法,研究了不同过盈量和螺纹脂摩擦系数对接头总上扣扭矩及其构成的影响规律。结果表明：过盈量和螺纹脂摩擦系数越大,总上扣扭矩越大;螺纹径向过盈量、密封面径向过盈量、螺纹脂摩擦系数越小,台肩面轴向过盈量越大,作用到台肩面扭矩与总扭矩比值越大。总体上,台肩扭矩比值主要受螺纹径向过盈量和台肩轴向过盈量控制,而螺纹脂摩擦系数主要影响总上扣扭矩。建议加强优化公差配合、提高接头加工精度、严格控制上扣圈数并注重优选螺纹脂。研究结果对于确定特殊螺纹接头合理上扣扭矩以及强度计算提供了理论依据。
The makeup torque and its composition of premium threaded connections are of great importance for improving mechanical and sealing integrity of tubing and casing. On the basis of analysis on typical makeup torque vs. turns curve, the theoretical calculation method of makeup torque for premium threaded connections has been established with the elasticity mechanics theory of thick-wall cylinder and rotary shoulder torque formula. The influences of different interferences and thread compound friction coefficient on the total torque and the ratio of torque acting on shoulder to total torque has also been investigated and the results show that the larger the interferences and thread compound friction coefficient,the higher the total makeup torque. The smaller the thread tooth radial interference,sealing surface radial interference and thread compound friction coefficient or the larger of the shoulder axial interference,the higher the ratio of torque acting on shoulder to total tor

[ 可能符合您检索需要的词汇 ]

进入期刊文章
活塞与阀座内壁所形成的接触应力及拔出力直接影响活塞的密封性及摩擦磨损等使用性能。利用有限元分析法，得出活塞在静态和动态情况下，接触应力的分布规律，同时分析在改变活塞装配过盈量情况和工作压力的情况下，接触应力的分布与过盈量的选取问题。仿真分析表明，活塞和阀座之间的单边过盈量不能超过0．01mm；当摩擦系数肛为0．05，单边过盈量为0．01inm时的最大拔出力为892．14N，而液压产生的推出力仅为300N，远小于实际所需的拔出力，因此0．01mm的单边过盈量能完全符合使用要求。
Contact stress and pull-out stress formatted by piston and the valve seat directly affect the piston seal and friction wear performance .Problem of piston size selection is analyzed between different assembly interferences .Simulation results in-dicate that contact surface average mises stress of valve seat is about equal to yield strength of materials with interference in 0. 01 mm, while in conditions of interference in 0.02 mm and 0.03 mm, radial deformation of valve seat is obvious.Based on a-nalysis and considering mechanical properties of materials, unilateral interference between piston and seat would not exceed 0. 01 mm;when friction coefficient is defined as 0.05 and unilateral interference is set as 0.01 mm, output stress would be 892. 14 N, which is far less than hydraulic pressure arising from pull-out stress who would only be 300 N.Therefore, 0.01 mm u-nilateral interference can completely meet the use requirements .

[ 可能符合您检索需要的词汇 ]

进入期刊文章
利用有限元分析软件Ansys Workbench对某型号的罗茨风机叶轮和轴的过盈配合问题进行静态和动态的有限元分析,得出了不同过盈量和转速对转子配合性能的影响,为罗茨风机转子的结构设计和过盈量的选择提供了依据。
In this thesis ,the interference fit of roots blower impeller was analyzed in static and dynamic way by using FEM software-ANSYS Workbench . The performance of rotor at different interferences and rotate speeds was obtained ,which provides the basis for structure design of roots blower and interference choice .

[ 可能符合您检索需要的词汇 ]

进入期刊文章
对辊成型机的关键部件成型辊部件是采用辊轴和辊套的过盈配合来转递动力的,过盈量的选择对成型辊辊套的使用寿命起着重要的作用。针对辊套经常开裂的情况,对辊轴、辊套的过盈配合进行有限元ANSYS非线性分析,比较两种不同的约束条件,得出正确的约束条件。用ANSYS非线性分析辊套辊轴的等效应力、变形量和接触压力,并和辊轴、辊套过盈配合的传统理论计算进行比较,分析开裂的原因,确定适当的过盈量,为设计提供一定的借鉴。
As the key component of the roll forming machine,the forming roll assembly transmit the power via the interference fit of the roll shaft and the roll sleeve,and the interference amount plays an important role in the service lifespan of the roll sleeve.In view of frequent cracking of the roll sleeve,the paper conducted nonlinear FEA of the interference fit of the roll shaft and the roll sleeve,and achieved appropriate constraints after contrasting two kinds of constraints.ANSYS was applied to carry out nonlinear analysis on the equivalent stress,deformation and contact of the roll sleeve and the roll shaft,and then which were contrasted with the ones calculated by traditional theory.At last,the cracking causes were analyzed,and appropriate interference amount was determined,which offered some references for the design.

[ 可能符合您检索需要的词汇 ]

进入期刊文章
以GD-Ⅱ型电主轴为研究对象,首先根据动静态过盈理论初步确定过盈形式和过盈量的大小,然后采用有限元方法对电主轴连接结构进行三维建模,研究不同主轴转速条件下,电主轴初始过盈量的变化对主轴与转子间接触面的应力分布和扭矩传递能力的影响规律。通过分析发现,随着主轴转速的升高,接触面应力和扭矩的传递能力不断减小,且主轴转速越高,扭矩减小越快,研究结果表明,采用ф66H6/s6和ф65.9H6/t6的阶梯过盈量能较好地满足工作要求。
A GD-Ⅱ motorized spindle was introduced herein,the magnitude of step interference was also determined based on the dynamic interference fit theory,then the finite element model of the jointed structure was built and the effect of different initial interferences was also analyzed under dif-ferent running conditions.The analysis results show that the ability to transmit torque and the con-tact stress decrease with increasing spindle speed constantly,and the higher the spindle speed will lead to greater decreases of the transmitting torque capacity.The results also indicate that usingφ66H6/s6 andφ65.9H6/t6 ladder interference magnitude can well meet the job requirements.

[ 可能符合您检索需要的词汇 ]

进入期刊文章
卡扣与卡扣座配合,在将卡扣插入、拔出卡扣座时由于存在过盈配合,故存在插入力、拔出力。而考虑到产品的装配性,插入力、拔出力需控制在一定的范围内才能保证其装配性,因此需要考虑合适过盈量以满足合适的插入、拔出力。但是过盈量并不是唯一影响插入、拔出力的因素,卡扣座的高度也是影响插入、拔出力的因素之一,也需要进行验证。今以某型ABS前三角内盖板与某型挡泥板为例,通过CAE解析,确定过盈量、卡扣座高度对插入力、拔出力的影响关系,以确定合适的过盈量,为后续同类产品设计提供参考依据。
There are insertion force and extraction force between clip and clip seat(dog house) combination which is caused by interference between them. In order to make the assembly suitable,the consideration of reasonable interference should be taken. But the interference is not the only element which will affect the value of insertion and extraction force. The height of clip seat(dog house),one of the factors which has some relationship with the insertion and extraction force, should be taken into account. Now take one of car front door inner covers (ABS) compared with mudguards for example, there will be CAE analysis and experiment which can evaluate the exact factors affecting the insertion and extraction force. So the appropriate interference value can be set.

[ 可能符合您检索需要的词汇 ]

进入期刊文章
介绍柱塞泵缸体镶铜衬套的结构特点，并将其简化为厚壁圆筒模型进行装配过盈量的理论计算。在此基础上通过ABAQUS有限元分析得出了不同过盈量下的各种应力云图，并针对衬套外圆加环槽和不加环槽两种结构对装配结合力的影响进行了有限元对比分析，剖析了在衬套外圆加工环槽的作用，为柱塞泵缸体衬套的结构设计及过盈量计算提供了参考。
The structure characteristics of the piston pump cylinder copper bushing were introduced,which was simplified as the thick wall cylinder model for the theoretical calculation of the assembly over surplus quantity. On this basis,various stress nephograms were obtained by ABAQUS finite element analysis (FEA)under different over surplus quantities. Moreover aiming at impacting of the bushing cylinder with ring groove and without ring groove on assembly binding force,the FEA comparison was carried out,and the roles of the ring groove were analyzed. It provides reference for the structure design and over surplus quantity calculation of axial piston pump cylinder copper sleeve.

[ 可能符合您检索需要的词汇 ]