A mechanics model is presented for the static and dynamic analysis of ship-platform collision system, and the static equivalent intensity analysis is applied to the damaged X diagonal brace member of platform structure. In the course of dynamic elastic-plastic analysis of offshore platforms, the added mass coefficients for the seawater dynamic effect and the structure-pile-soil mutual interaction are considered in the analysis of computational model. The nonlinear springs are introduced for the simulation of the force-deflection relationship of the local indentation for the damaged X diagonal brace. The curve of indentation deformation of the damaged member and different collision contact time is simulated under the velocity of ship being assumed. According to the curve, the formula of indentation deformation of the damaged member and different collision contact time is obtained to determine the maximum impact load.
根据导管架结构受大型船舶撞击后的损伤检测结果，对碰撞过程进行了数值反演计算分析，对构件模型从简单到复杂的思路提出了船舶碰撞海洋平台导管架结构的撞击作用；同时也对船舶撞击平台结构进行了动力响应分析，采用非线性弹簧来模拟受损构件的局部凹陷损伤，考虑了结构—桩—土的相互作用，运用瞬态动力学方法来分析船舶以不同的速度撞击导管架结构的动力响应，确定了船舶对平台结构碰撞的最大动力撞击作用。
According to the limit circling curve of vehicle hunting, nonlinear critical speed is obtained by use of multi-body dynamics software, which takes into account the lateral track irregularity and nonlinear contact element, and the lateral velocity of wheelset is acquired during the derailment process of vehicle.
基于高速车辆在直线轨道上蛇行运动的稳定性曲线，考虑到轨道方向不平顺、非线性轮轨接触单元的影响，运用多刚体动力学软件求得了车辆系统的非线性临界速度，并获取了单轮对跳轨时的横向速度。
This study found out that the curve rate of talus component and polyethylene insert would increase the transition distance increase in plantar flexion 20 degree, which makes contact area increase and contact stress reduced.
本研究发现距骨元件以及关节内衬的曲率设计会造成二件式人工踝关节在掌屈20度於材料试验机上的位移增加，造成接触面积增加，接触压力减少之情形。
Works on the bending roll system of four-roll rolling mill, the workroll shape variation caused by the force of bending roll and the contact stress between rolls was researched with the FEM software ANSYS, the maximum deformation of the work roll was calculated, and the curve of the gap adopting the Least-Squares method was fitted, which set the base of the further calculation of load-gap shape.
以四辊轧机的弯辊系统为研究对象，利用有限元分析软件ANSYS研究弯辊力和辊间接触应力引起工作辊形状的变化，计算工作辊弯曲的最大变形量，并用最小二乘法对辊缝曲线进行拟合，为进一步计算有载辊缝形状提供可靠的理论依据。
From the angle of force balance, a physical and mathematical model of liquid outside the insert plate when the angle of solid liquid contact equals to zero is established; and the surface curve shape of liquid is derived and proved.
从力平衡的角度，建立固液接触角为零度时插板外液体的物理数学模型，推导证明液体表面形状曲线方程。
The results show that, for the elasto-plastic contact of tip-substrate approach and separation process, the material plastic yielding in the atomic level is still governed by the von Mises criterion. For the adhesion of flat-ended wedges, continuum mechanics can be still applied down to a few lattice constants within the contact region, and give reasonable results, apart from the discrepancies near the contact edges. Moreover, adhesion hysteresis occurs during unloading due to the atomic steps, where the unloading curve does not coincide with the loading one. This in turn supports the presumption proposed by Pollock for the adhesion of stepped spheres.
本文首先对针尖—基体模型的弹塑性接触机理进行了深入研究，指出在原子水平上材料的塑性屈服仍由Von Mises准则控制；对平底锥冲头粘着接触的模拟表明，除了在接触区边缘附近有一定差别外，接触力学方法在接触区内几个晶格常数范围内仍能给出令人满意的结果；由于原子台阶效应，加载与卸载曲线不重合，出现粘着滞后，证实了Pollock关于具有纳米阶梯结构的球体粘着滞后现象的推测。
The contact point of the central incisors, the cusp tips of the canines and the distobuccal cusp tips of the first molars were used to determine the curve.
由中切牙接触点、双侧尖牙牙尖点和双侧第一磨牙远中颊尖点5个点确定个体弓形。
Three kinds of temperature curve would be observed with proper designs.
标 签 接触传热接触容限接触热阻大气压力间隙激光辐照 Heat transfer by contact Contacting tolerance Contact thermal resistance Atmospheric pressure Gap Laser irradiation
The contact condition of lip and roller is the main reason of temperature rising of railway bearing 352226. On the basis of testing the railway bearing and the experience of SKF, this paper analyzed the lubrication characteristics on contact position of inner ring lip and roller of tapered roller bearing. Through analyzing different characteristic curve of friction torque gotten from different contact position of lip and roller and running temperature test under different lubrication conditions between lip and roller face, the requirement of elastic hydrodynamics lubrication between lip and roller had been proved necessary, that is, the contact position between lip and roller should be at the center of inner ring lip.
挡边与滚子接触情况是影响352226型铁路轴承温升的主要原因之一在对铁路轴承进行实验研究的基础上，借助SKF公司的经验，从理论上分析了圆锥滚子轴承内圈挡边和滚子接触处的润滑特性，通过对滚子与挡边在不同的接触点所形成的不同的摩擦力矩的特性曲线分析以及对滚子端面与挡边在不同润滑状况时跑合工作温度的试验，得出了滚子与挡边形成弹性流体动力润滑的条件，即圆锥滚子轴承的挡边与滚子接触位置应当保持在内圈挡边的中心。
From the reconstructed images, three sintering stages of the silicon nitride ceramic sample were clearly distinguished and several sintering phenomena during the sintering process such as grain contact, sintering neck growth and pore spheroidization were observed. Densification rate of sintering process was analyzed from the porosity-time logarithm curve, which was obtained from the reconstructed images of silicon nitride ceramic sample at different sintering time. The three sintering stages and linear relationship between porosity and time logarithm in the middle stage of sintering which has already been described in the traditional sintering theories were clearly observed from the porosity-time logarithm curve.
通过重建图像清晰观测到了陶瓷样品在烧结三个阶段中颗粒接触、烧结颈形成、晶粒和气孔长大、气孔球化并收缩等烧结现象；统计了样品在不同烧结时刻的孔隙率，得到了孔隙率随烧结时间对数的变化曲线，并根据曲线分析了样品在不同烧结时刻致密化速率的变化，得到了烧结中期孔隙率和时间对数的线性关系。
Electric drill, the impact of drilling, cutting machine, curve sawing hope to have the company and I need to contact us!
电钻，冲击钻，切割机，曲线锯）希望有需要的公司与我司联系！
Firstly, the developing principles of the cylindrical internal helical gear are proposed through analyzing the movement and geometry requirements, which provides continuous contact between the mating gear surfaces. The tooth surface of the internal helical gear in the new gearing can be imagined as being generated by the normal section of the conjugated surface of the ball-tooth, moving along the radial projection of helix line of the tooth-root circle. Also, the proposed surface can be approximate tangent to the conjugated surface of the ball-tooth along a spacial curve.
首先，通过分析保证行星轮作螺环运动时与内斜齿轮实现连续啮合传动的运动和几何条件，提出了圆柱内斜齿轮齿面的两种形成原理：即由球齿运动包络曲面的法截面沿其齿根圆螺旋线在径向的投影进行拓展所形成的内齿面，以及与球齿运动包络曲面呈近似相切接触的等螺距齿面构成的内齿面。
After forming simulation and springback simulation, the springback calculated using these three models is compared with test result, and the stress and strain curves of a same point of blank in these three models are compared. At the end of forming simulation the contact relations between module surface and blank in the curve corners of modules are analyzed.
在冲压仿真和回弹仿真后，比较了模型中板料上的同一点的应力应变曲线，以及回弹计算结果与试验结果，分析了在模具弯曲部位成形末期不同单元尺寸的板料和弯曲模具表面的接触关系。
The purpose of this study was to investigate the impact damage and absorbed energy of apple using an impact test with single pendulum. The peak force, contact time and impulse were obtained from the force-time curve during impact. The damage volume of apple was measured and the absorbed energy was calculated by relationship of energy equilibrium. The effect of damage volume and absorbed energy were investigated under different impact momentum and hammer detector with different curvature radius.
本研究目的是使用一单摆锤型碰击试验机对苹果进行碰击试验，碰击时，由力量－时间波形图得到的最大撞击力F、撞击接触时间t及冲量值I，碰击后，量测苹果的损伤体积，利用能量平衡关系计算得到苹果碰击损伤的吸收能量，探讨不同的碰击动量及不同曲率半径的冲锤探头下对苹果碰击后的果肉损伤体积及吸收能量的影响。
Now when your engines CATO you'll be able to see the resulting force spike in the data curve; WARNING: don't drop contact point of the thrust stand onto the load cell if you don't leave about a 1cm^3 air bubble system, otherwise you risk over pressuring and bursting the pressure transducer from the extreme shock that will result without an air cushion - I found out the expensive way!.
现在，当你的引擎卡托，你将能够看到由此产生的力量穗在数据曲线；）警告：不要下降，接触点的主旨的立场上的负荷细胞如果你不离开一厘米约一立方公尺的空气泡沫系统，否则，你的风险压力和爆破压力传感器从极端的冲击将导致没有一个气垫-我发现昂贵的方式！
The light curve is analyzed by means of theWilson-Devinney code, and the present photometric solution reveals that BL And is a marginal contact binary system with a dark spot on the photospheric surface of the second component.
用 WD程序对BL And进行了解轨后，发现该系统是一个临近相接的双星系统，且其G型次子星上存在一个低于环境温度790K的黑子。
The designing formula of roll shape with full contact complex curve has been obtained according to the principles associated with the conjugate geometrical relation between rolls and the billet in cross roll piercing for tubes.
本文介绍在钢管斜轧穿孔机中，利用轧辊和轧件存在着共轭几何关系的原则，导出全接触的复合曲线辊型的设计公式。
At last, the error curve surface of gear profile is obtained by combining bending deformation and contact deformation.
文中首先将刀齿和轮齿抽象简化为力学模型，分析其受力状态，并运用三维有限单元法计算各节点的弯曲变形量，建立切削力与弯曲变形的关系。
In chapter 3, the geometric situation in a ball contact area is analysed with the consideration of structure parameters including horizontal pitch deviation, vertical pitch deviation, the transition curve on block, the position of arm of force and ball interference.
在本文第三章分析了导轨副在结构参数变化（水平节距偏差、垂直节距偏差、滑块滚道过渡部分设置间隙、导轨副力臂位置变化、钢球具有过盈量）时钢球接触区几何关系的变化情况。
A Study of Hysteretic Curve of Reinforced Concrete Members under Cyclic Loading Taking Account of Local Contact Effects of Cracked Section
在周期荷载作用下，钢筋混凝土构件滞回曲线考虑裂面接触效应的研究