本文运用三维有限元方法离散水体,研究了箱形术体的自振频率及动水压力振型。
In this paper, the natural frequencies and modes of box water body researched by using three-dimensional finite element method.
首先推导出了三维油膜试验数学模型和动特性系数的计算公式,并由此确定试验方案。
First, in this article, the mathematical model of the experiment for the three-dimensional oil film and the computative formulas of the dynamic characteristic coefficients were deduced.
采用离散元方法,对喷动流化床内的颗粒混合特性进行了三维直接数值模拟。
Numerical simulations on particle mixing characteristics of spout-fluid bed were carried out in three dimensional based on discrete element method (DEM).
本文对商品化的三维激光扫描测量系统中的控制技术和随动跟踪测量技术进行重点研究。
In the dissertation a study of computer auto control system and a kind of tracking and measurement method of the commercial 3d laser scanning system.
采用三维声学多普勒流速仪对弯道上游顺直河段水流特性进行了系统的试验研究,全面分析了水流的三维时均流速及流场和纵向紊动强度。
The flow characteristics of the straight chanel up the bend were studied by means of the advanced three-dimensional acoustics Doppler current meter.
牺牲层腐蚀技术结合MEMS技术是制作三维可动微机构的一个重要加工手段。
Wet chemical etching of sacrificial layers plays an important part in fabricating movable tree-dimensional micromachines by combination with MEMS technologies.
本文借助CATIA软件,结合磁悬浮列车动车段工程实例验证了工程设计的三维建模与仿真理论的合理性。
With the software, CATIA, the rationality of the method on Tri-Dimensional digital modeling, simulation and analysis is verified by the example of the depot of magnetic levitation train.
目前,多级叶轮机械的三维流动计算绝大多数采用了绝对与相对定常模型来模拟静动叶轮。
At present, most of the 3d flow calculation for multistage turbomachinery are based on steady relative flow model.
它既继承了SAR的全天候、大范围、有一定穿透能力等优点,又具有对目标三维地貌进行高精度成像、对目标地面的慢速动目标和地壳微小移动作高精度检测等的能力。
Carried forward the merit of SAR, InSAR can create high resolution DEM and accomplish change detection, such as slow-moving targets or subtle shift of the earth's surface.
利用三维超声学多普勒流速仪对丁坝坝头附近水流和回流区水流的紊动特性进行了系统的观测和分析,得到了丁坝坝头和回流区的水流特性及紊动动能的分布规律。
Then the turbulence characteristics of the spur dike head and backflow region and the distributions law of flow and turbulence kinetic energy around spur dike are obtained in this paper.
本发明提供在由沿着一路径移动的致动器运载或耦合到所述致动器的物体的三维中实现旋转和平移运动的新颖的机构和方法。
The invention provides novel mechanisms and methods for effecting rotational and translational motion in three dimensions of objects carried by, or coupled to, actuators that move along a pathway.
不再有枯燥单一的必经之路,交通动线演变成自由随意的三维游园小径,带动风景、室内外空间的互动。
Traffic moving lines will evolve into irregular three-dimensional garden trails, which brought along interaction between indoor and outdoor space and scenery.
采用三维激光全息动光弹超动态综合测试系统进行了定向断裂爆破模型试验研究。
The model test investigations of directed fracture blasting have been carried out by using the super dynamic measuring system and the 3-dimensional laser holographic dynamic photoelastic instrument.
本文基于采用干湿网格动边界技术的POM模式,模拟了厦门湾全海域潮流场和温盐场的三维结构特征。
This paper investigated the characteristics of the tidal current, salinity and temperature fields in Xiamen bay by using POM, a baroclinic model with a robust wetting and drying scheme.
并针对三维激光测量系统和关节式测量系统,分别提出了预扫描的随动测量技术和信号跟踪算法的随动测量技术。
Aiming at the 3-d laser measurement system and the joint-type measurement system, the paper put forward the technology of tracking measurement based on pre-scanning and signal separately.
通过对浮环减薄前后实验结果的对比分析,研究了浮环厚度变化对浮环轴承涡动及稳定性的影响,并给出了三维谱图、涡动比与转速图、典型分岔图。
Based on two experiments on floating ring bearing before and after floating ring thickness reduction, the effect of thickness variation of floating ring on whirl and stability was studied.
本文根据三维有限元模型分析探讨了采动区房屋基础滑动层在地表变形影响下的作用,并与现场试验结果进行了比较。
Effects of slip layer of building foundation subjected to deformations of ground surface in mining areas were studied by 3-d FEM and field test, and results were compared.
动梦科技以三维、运动、互动为核心技术,以工程、影视、游戏为主营形态。
DoMo Digital, take 3d, motion and interaction producing as our nuclear technology, project, film and game are our main product form.
本文根据眼球的解剖与运动生理特点,提出了眼球在全部六条动眼肌作用下的三维运动模型。
According to the properties of anatomy and physiology of orbit and eye movement, a 3-d eyeball movement model was developed, in which all the six extraocular muscles were concerned.
并对比两种情况下的动测曲线,发现桩顶受约束时桩的动测曲线不仅受桩周土体的影响,还受到上部结构的干扰,并且桩身反射的三维效应更明显。
The dynamic tests of top-restricted concrete pile are affected not only by the soil around pile, but also by the upper structure, and the signal of 3D effect reflected by the pile is stronger.
并对比两种情况下的动测曲线,发现桩顶受约束时桩的动测曲线不仅受桩周土体的影响,还受到上部结构的干扰,并且桩身反射的三维效应更明显。
The dynamic tests of top-restricted concrete pile are affected not only by the soil around pile, but also by the upper structure, and the signal of 3D effect reflected by the pile is stronger.
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