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- 与 by plane 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In the second chapter, elementary theories and ideas of one step forming inverse approach were described and warped modification method, implemented by Cook, was introduced into one step forming simulation and based on idea of surface spreading; new quadrilateral element modification arithmetic was put forward. By spreading warped quadrilateral onto plane in local coordinate system, a plane quadrilateral element whose shape and area were equal to original warped quadrilateral element was gotten and internal force vectors of four nodes and stiffness matrix of elements were improved to increase precision of simulations on this plane element.
第二章从一步成形逆有限元法的基本理论和思想出发,将Cook基于弹性理论的四边形单元的翘曲修正算法引入基于塑性的一步成形,并且基于曲面展开的思想,本文提出一种新的四节点单元翘曲修正方案,通过把翘曲的单元展开的方法在局部参考系中得到一个与实际翘曲单元的形状与面积非常接近的平面单元,在该平面单元中进行单元刚度及内力向量的计算,进一步改善模拟结果的精度。
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On the base of the single-diameter laser-scanned measuring technology, a double direction laser-scanned measuring system is presented. Which combinate the laser-scanned measuring technology with special optical system. In the system, the collimation semiconductor laser-scanned beam scanning two perpendiculars direct of one plane of the measured workpiece at the same time is made. The beams with the dimension information of two perpendiculars direct are processed by the scanning receive system, the high-speed photoelectric transition and electronic data process. Two measured results of the diametric directs and ellipse tolerance,etc, parameter, of the turning workpiece on the same plane are obtained by non-contact automatic measurement. The problem of non-contact measurement of two perpendiculars direct of one plane of turning workpiece is settled. It processes many peculiarities, such as high speed, high accuracy and non-contact automatic measurement, etc.
在单向激光扫描检测技术的基础之上,提出了一种双向激光扫描检测系统,其采用激光扫描检测技术与特殊光学系统相结合,用准直半导体激光扫描光束对被测工件径向某一截面的两个相互垂直方向同时扫描,经扫描接收光学系统、高速光电变换、电子学系统和微机数据处理系统,对将携带有垂直方向被测量信息的光束进行处理,实现了回转体工件同一截面两个垂直方向的径向尺寸和椭圆度等参数的非接触自动测量,解决了同时非接触测量回转体零件同一截面两个径向尺寸的难题,它具有高速,高精度和非接触自动测量等特点。
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Based on investigating the short and intermittent structural plane, surrounding rockmass of the huge underground powerhouse in Three Gorge has been divided into five statistical similar areas according to its characteristic of rockmass structure by applying structure plane network simulation. Distributed characteristic of structural plane has been studied and based on it mechanics macrocharacteristic has been studied:(1) It is the first time that based on the result of structural plane network simulation rockmass quality of every structure area has been studied with applying blurred information optimum seeking technique and be compared with and RQD method. The result indicated that it has better effect to evaluate rock quality with blurred information optimum seeking technique.(2) It is the first time that the interrelated relationship of the result of in-suit rockmass deformation test and fractal characteristic of structure on test point has been applied to determine rockmass deformation parameter. The question of evaluating deformation parameters of engineering rockmass has been solved.(3) Anisotropy strength parameters have been determined by applying shear zones simulating method. The result indicated that there are different strength parameters in every structural area, after comparing the result of Fast Lagranian Analysis in continua number simulation method with that of method of weighted mean according to continuity. The result indicated that when a suitable reduction coefficient is been considered rockmass strength parameters can be simply and fast determined with method of weighted mean according to continuity where there is not enough test result.(4) Damage characteristic has been studied based on analysis fractal characteristic of structural plane network by applying fractal-damage coupling method. It is the first time that the concept of damage degree has been set up to evaluate rockmass quality according to the biggest principal damage.
通过对短小、断续性结构面统计特征的研究,将地下厂房区划分为五个岩体结构统计均质区,应用结构面网络模拟技术研究了各个岩体结构均质区结构面的发育分布特征,并以此为基础对岩体宏观力学特性进行了深入研究:(1)首次通过在结构面网络模拟计算结果的基础上,应用模糊信息优化技术研究了厂房区各个岩体结构分区的岩体质量并与岩体基本质量指标研究法、岩体质量指标RQD值研究法作了对比,结果表明以结构面网络模拟结果为基础,应用模糊信息优化技术进行岩体质量评价能够取得很好的效果,解决了工程岩体质量的定量评价问题;(2)首次通过对已有的现场大型岩体变形试验结果的分析及相应试验点岩体结构分形特征的研究,建立了结构面分布的分形维数和岩体变形指标间的相关关系,并首次应用这种相关关系根据结构面网络模拟及分形维数计算结果确定了缺少试验结果的地下厂房各工程部位的岩体变形指标而且应用于围岩稳定性计算,解决了工程岩体宏观变形参数的评价问题;(3)应用在结构面模拟网络图上模拟岩体剪切破坏带的方法,得出了岩体在不同方向上的强度参数,结果表明岩体的强度特性与结构面的发育方向和程度有着明显的关系,各个岩体结构均质区具有不同的强度参数;同时还通过应用拉格朗日差分法对岩体强度指标的数值分析并与按连通率加权平均计算法对比表明,按连通率加权平均计算法在考虑合理的折减系数情况下,可以简单快速地对缺少现场大型试验结果的具体工程部位实现岩体强度指标的估计,通过以上研究解决了工程岩体抗剪强度参数的评价问题;(4)通过结构面网络分形维数的研究,应用分形损伤耦合分析方法,研究了厂房区岩体的损伤特征,并首次引入"损伤度"的概念,建立了应用最大主损伤评价岩体质量的指标体系。
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During building 2D model, I use the concepts of point, segment, line and plane, the segment can be formed from points, then line can be formed from segments, the closed curved plane can be obtained by around lines, and finally the 2D model can be built by closed curved plane; I express the un-smooth stratum or fault by linear fitting and express the smooth stratum or default by cubic spline fitting segmentally, in this way I can describe the variation feature of 2D interface properly.
在二维建模中,引用点、段、线、面的概念,即由点形成段,由段形成线,由线围成封闭面,封闭面构建成二维模型;对表示二维地层和断层的界面线,用线性拟合表示非光滑性地层或断层面,用分段三次样条拟合表示光滑性地层或断层面,恰当地表达了二维界面的变化特点。
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Computer micro-vision, Mirau microscopic interferometry, stroboscopic photography and laser Doppler vibrator are integrated into this platform. In-plane and out-of-plane periodic motion characteristics of micro-resonator are measured, and out-of-plane transient motion of micro-mirror is analyzed. In-plane displacement, motion phase and resonance frequency can be measured by integrating computer micro-vision with stroboscopic photography, and the repeatable accuracy of in-plane displacement is 30 nm.
实验结果表明,利用计算机微视觉和频闪成像技术能够实现微结构的平面位移、运动相位及谐振频率等周期运动参量的测试,位移的重复精度为30 nm;利用显微干涉和频闪成像技术可实现微结构的离面位移及表面扭曲等周期运动参量的测试,位移的重复精度为3 nm;激光多普勒测振技术具有在频域上对微结构瞬态运动进行分析的优点,是时域上周期运动测试的重要补充。
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The mechanism of instability wrinkling in the process based on minimum energy principle is revealed, uniform mathematic description of the wrinkling wave on the strip of in-plane bending is established, the internal and external energy is deduced by energy method, and a uniform criteria of internal and external wrinkling is established; then how to combine the criteria with the FEM simulation system to make the numerical prediction of wrinkling into reality is also resolved in the paper. The effects of the forming parameters on the deforming result are analyzed by the uniform predict criteria. The results show as follows: as the compress width increase, external wrinkling first come into being, then internal winkling do, and finally in-plane bend occur; the loading wedge angle increase, internal winkling first come into being, thenin-plane bend do, and finally external wrinkling occur; in-plane bend is possible to occur with a increase of the strain-hardening exponent and the strength coefficient; and the effect of the friction factor may be ignored.
2揭示了板带不均匀压下面内弯曲成形过程基于能量原理的失稳起皱机理,提出了统一的描述内外缘起皱波形的函数,采用变分法推导了服从该波形函数的内外缘起皱能,建立了统一的起皱预测准则;将新建立的统一的起皱预测准则引入到数值模拟系统IBS中,数值预测结果与实验结果的吻合较好;分析了成形过程各参数对起皱的影响规律:随着接触变形区宽度的逐渐增大,先是发生外缘起皱,然后发生内缘起皱,进而才出现稳定成形;随着实际加载楔角的增大,先是发生内缘起皱,然后发生稳定成形,进而出现外缘起皱;硬化指数和强化系数增大,易于稳定成形;摩擦因子对起皱的影响不明显;而且接触变形区宽度对起皱的影响最大。
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So the technique of uncooled microbolometer infrared imaging has become one of the main points from now on. In the paper uncooled microbolometer infrared imaging system is studied from focal plane character, image dealing and application. The details are in the following: On uncooled microbolometer infrared focal plane aspect: first, the work principle of microbolometer, manufacturing technology of microbolometer infrared focal plane, temperature balance equation of microbolometer detector are analyzed. The performance of microbolometer detector is predicted by model. Second, the infrared focal plane is the core of infrared system, whose quality can determine the performance of the system. It is the precondition that the high quality of every detective unit maintains the qualification of the focal plane. The even degree of detective units has great influence on imaging characters if the other characters of detective units are normal.
本文以非致冷微测辐射热计红外成像系统为对象,从焦平面特性、图像处理和红外系统应用方面展开分析、研究,具体内容如下;在微测辐射热计红外焦平面方面,首先分析了微测辐射热计的工作原理、微测辐射热计红外焦平面的工艺制作、微测辐射热计探测单元的温度平衡方程,根据有关参数对其特性进行建模预测;其次,红外焦平面是红外系统的核心,它的质量的好坏直接决定系统性能,因此保证其各探测单元的高性能是维护焦平面品质的前提,在探测单元其它特性正常的情况下,各探测单元之间特性的均匀程度对系统成像性能有极大影响,为此本文提出自适应滤波多项式焦平面非均匀性校正算法从软件角度解决焦平面的固有的噪声问题。
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Presenting the calculating method of the space displacement model of skewed box girder, whit main ideas of: dispersing the skewed box girder into some skewed beam segments and further dividing those segments into some plate pieces according to their forms; describing the displacement functions in the plane of plate piece by assuming that the space displacements of any point in the joint line between the plate pieces are described by using Hermite interpolation functions and that two displacements in the plane of plate piece are linear in the cross direction; Using Hermite interpolation functions to describe the bending the displacement of the unit length transverse frame cutting longitudinal from the skew box girder segment; Finally, describing the space displacements of a point in the plate pieces by two displacements in the plane of the plate and one bending displacement of plate.
提出了斜交箱形梁空间位移场的计算方法:将斜交箱形梁沿纵向离散为若干斜梁段单元,依据箱梁的构成进一步将斜梁段划分为若干板段子单元;各板段联结线上任意点的位移按Hermite函数插值,假定各板段的面内位移沿其宽度方向线性变化,以描述各板段面内位移;沿斜交箱梁段的纵向截取单位长度横截面框架,框架各杆件空间位移按Hermite函数插值,以描述各板段面外位移;板段内任意点的空间位移最终以2个面内位移和1个面外位移描述。
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A movable plane is built that is perpendicular to the projection of sightline in xz plane; a radial from camera position to mouse point is built and the mouse wheel is used to control the forward and backward movement of the movable plane along the sightline direction; the intersection point of the mouse radial and the movable plane can be moved to any position in 3D space by moving the moveable plane; the coordinate of the intersection point of the radial and the moving plane is calculated, taken as the new coordinate of the object to be moved which is added into the romance pipeline, and the object movement can be implemented.
论文摘要:为优化虚拟三维管理领域的物体移动操作,实现利用鼠标完成物体在三维空间中任意点的移动过程,引入可移动平面的概念,在三维空间建立垂直于视线在xz平面投影的可移动平面;建立1条从摄像机位置到鼠标位置的射线,由鼠标滚轮控制可移动平面在视线方向上的前后移动;通过移动可移动平面,使鼠标射线与可移动平面的交点可以到达三维空间中的任意位置;计算射线与可移动平面的交点坐标,将其作为待移动物体新坐标放入渲染流水线,从而完成物体移动。
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I plant covers an area of 50 acres, with a total investment of 10,000,000 yuan of fixed assets, plant construction area of 30000 square meters, has a large sanding machine, microwave drying insecticidal dedicated timber processor, swallow-tailed tenon, sticky automatic production lines, hydraulic press that Then, surrounded by plane, and other advanced production equipment of 18 sets.
我厂占地面积50亩,固定资产总投资1000万元,车间建筑面积30000平方米,拥有大型砂光机、木材专用微波干燥杀虫处理机、燕尾榫机、自动粘板生产线、液压机、指接机、四面刨等先进的生产设备18台套。
- 推荐网络例句
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They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.
他们没有侵略性,但我大喊,并在他们的方向扔石头让他们过的线索,远离我,以防万一。
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In slot 2 in your bag put wrapping paper, quantity does not matter in this case.
在你的书包里槽2把包装纸、数量无关紧要。
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Store this product in a sealed, lightproof, dry and cool place.
密封,遮光,置阴凉干燥处。