利用激光狭缝扫描原理和光电传感技术,提出了一种用于测量大型回转体类零件圆度误差的激光扫描非接触测量方法和测量系统。
A laser scanning non contact measuring method and a measuring system for the roundness errors of large sized rotating parts are presented.
对小型回转体类零件的基本形体进行了分析,提出了与其统一的数学模型,并将其用于描述单轴纵切自动车床加工的小型回转体类零件。
Essential shape of the small turning shaft parts is analysed, the united mathematical model is put forward and applied to describing these parts longitudinal automatic single spindle lathe.
因为回转体在特殊情况下投影为圆,此类问题就转化为求圆的半径、圆心及切线了。
On special conditions, their projections are circular, these problems turn into the solutions of the circle radius center and tangent.
由于受到材料成形极限等因素的限制,成形此类回转体零件往往需要采用多道次旋压工艺。
Because of the limitation of material forming limit and other factors, it is necessary to produce this kind of parts by multi-pass spinning technology.
本文利用现代流体力学计算技术,采用复合形法(COMPLEX),对八维参量的回转体最小阻力外形进行优化设计。
Based on the modern digital technology of fluid mechanics, the eight-parameter optimum axisymmetric bodies for minimum drag are obtained by using COMPLEX method.
该设计原理与方法同样适用于其它具有转速变化的回转体盘形零件加工机器上。
This design principle and method can also be applied in rotating disk-shaped part processing machine with speed variation.
超空泡减阻机理的研究表明:超空泡不仅可以减小回转体的摩擦阻力,还可以减小回转体的压差阻力。
Research on drag reduction mechanism of supercavitation shows that supercavitation can reduce not only the friction drag coefficient but also the pressure drag coefficient.
本文用四次方程代替常用的几个二次方程曲线的回转体,来描述对称裂交的大形变过程。
In the paper, large deformation of symmetry fission has been described by a biquadratic surface revolution instead of several quadratic equations.
本文介绍了回转体锻件CAD中锻件体积的计算方法,推导出了通用的计算公式,并编制了BASIC程序。
This paper introduces the method of volume calculation in rotary forging CAD and derives the current formulas and works out the programme in BASIC.
介绍一个在微机上实现的机械常用回转体零件的集成制造系统。
A microcomputer based Integrated Manufacturing System aiming at machining rotation parts is introduced in the paper.
利用现代流体力学计算技术,采用复合形优化策略,提出了一种适用于回转体尾部外形的优化设计方法。
Based on the modern digital technology of fluid mechanics, the optimization design method of the shape of axisymmetric body tail for minimum drag is presented by using COMPLEX method.
根据非回转体环向缠绕理论及叶片产品的具体要求,分析缠绕工艺,建立了张力控制系统的数学模型。
Next, according as no - gyrating round fiber winding theory and concrete request of vane, analyzing the winding technics, found the mathematics model of tension control system.
本文应用运动学理论,研究了任意回转体外表面上的变倾角变导程螺旋线的通用模型。
With the theory of kinematics, the universal model of changed Angle and variable pitch spiral groove on any turning surface is researched.
提出一种基于激光多普勒效应的回转体表面轮廓测量系统。
A new type of rotation body profile measuring system utilizing laser Doppler effect was proposed.
应用多只激光点结构光传感器对大型回转体工件横断面扫描,形成多个光切平面。
Several light incisions are brought up when the large size parts are scanned along the cross-section by laser light structure sensors.
基于面元法,通过在回转体和空泡表面分布源汇的方法,建立了求解轴对称回转体局部空泡流场的数学模型。
Based on panel method, the mathematic model of partial-cavity flow field for axisymmetric body is given by use of the sources of distributing on the bodies and cavity surfaces.
本文提出了一种计算回转体定常。不可压缩粘性绕流问题的新数值方法。
This paper presents a new numerical method for calculating steady incompressible viscous flow around bodies of revolution.
给出了描写地磁场中海水绕回转体流动诱导的电场的基本方程、边界条件及其计算方法。
The governing equation, its boundary conditions and computing method for the electrical field induced by seawater flow around axis-symmetric body through geomagnetic field have been developed.
该系统具有检测速度快、精度高、非接触检测、闭环控制等特点,完全适用于回转体直径尺寸的在线检测和控制。
The system had many features such as high speed, high accuracy, untouched measuring and closed-loop control. The system is used on-line measuring and control of diameter measure.
并结合实例,细致的分析了常见的回转体相贯线,为计算机绘图提供了理论依据。
Then combined with teaching example, detailed analysis on intersection curve of normal revolution solid is provided, theoretical basis is advanced for computer graphics.
采用基于空间矩的回转体像面目标直线边缘亚像素提取技术,获得回转体目标在每个像面上的两条母线的亚像素直线方程。
The subpixel line equations of two generatrices in two planes projected by the rotary object is obtained by the subpixel straight line edge detection method based on spatial moment.
介绍一种新研制的高温回转体零件形位误差综合自动测量系统的构成、检测原理和方法。
Presents the composition, the principle and measurement methods of a non-contact automatic system for measuring shape and position errors of revolving body in high temperature.
在水压场模型的建立过程中,采用了回转体模型和浅水亚临界模型。
During the modeling of hydrodynamic field, the rotational body and subcritical velocity models are utilized.
为了研究轴对称回转体水下航行器模型所受到的壁面摩擦阻力,设计并实施了一套测试系统。
A testing system was designed and implemented to figure out the friction drag of an underwater axisymmetrical vehicle model.
本文在有限元法的前处理工作基础上,提出了回转体非线性边界元自动前处理的改进插值法。
This paper proposes an modified continuous transfinite interpolation method for automatic grid generation of axisymmetric BEM in terms of previous automatic mesh generation work in FEM.
机车传动轴系列零件为小直径回转体焊接件,焊接难度大,质量要求高。
The series of locomotive transmission shafts are cylindric welded components with small diameter, which have many welding difficulties and high quality requirement.
通过数值计算方法,模拟回转体在水下的航行,分析回转体周围流场、压强及其壁面上阻力的分布,并根据计算结果为该回转体设计了有效的微气泡减阻方案。
The flow field surrounding the revolving object, pressure and resistance distribution on its wall were calculated in order to design a micro-bubble reducing resistance scheme for the revolving object.
通过数值计算方法,模拟回转体在水下的航行,分析回转体周围流场、压强及其壁面上阻力的分布,并根据计算结果为该回转体设计了有效的微气泡减阻方案。
The flow field surrounding the revolving object, pressure and resistance distribution on its wall were calculated in order to design a micro-bubble reducing resistance scheme for the revolving object.
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