建立了再入机动弹道数学模型,给出了气动力系数为速度、迎角、高度的函数拟合式,进行了最佳再入机动弹道设计和仿真计算。
The mathematical model of reentry maneuvering trajectory is established. The fitting expression of aerodynamic coefficient function on velocity, attack of Angle and altitude is presented.
该方法利用与光轴对称的径向畸变数学模型求出光学镜头的校正系数,对畸变图像进行校正。
The method USES the model of radial nonlinear distortion with the symmetry of optical axis to obtain correction coefficients of the optical lens, and then corrects the distortion image.
本文从这一方法的数学模型入手,介绍重要性系数与评价矩阵的建立方法,并具有实例。
Presenting firstly the creation of the method's mathematical model, the paper introduces the aquisition of the important coefficient and the evaluation matrix, with an example to give an illustration.
通过改造绕组调制函数所建立的数学模型分析计算绕组的分层系数、正交误差和电气误差。
Through reform the modulating function of the winding to set up the mathematic model, by which it analyses and calculate the layer coefficient, quadrature error, electrical error.
给出了现场条件下液压元件寿命估算的数学模型和系统目标清洁度与寿命延长系数的关系。
Advanced the mathematical model of the hydraulic components life estimation method and established the relations of the system target cleanliness to the life extension coefficient.
根据镜头畸变的数学模型,利用平面圆形网格模板的网格交点来求取镜头的径向、切向和薄棱镜畸变系数。
Based the math model of lens distortion, the plane roundness gridding model is used to calculate the lens distortion coefficients of radial distortion and other non-linear factor.
分析该系统在不同工况运行原理的前提下,建立系统性能系数的数学模型。
The mathematics model of coefficient of performance for SWHP-RFH is presented after analyzing the operation principle in different conditions.
人体体型数学模型对人体体型62个变量中的41个变量估计效果好,估计值与原始值的相关系数在0.75以上。
The mathematical model of human body can well predict the 41 variables in the 62 measurements, with the coefficient between prediction value and original one reaching more than 0.75.
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.
根据密度和膨胀系数的物理定义,通过公式推导,建立了相应的数学模型。
The corresponding mathematic model has been established in accordance with the physical definition of the density and the expansion coefficient through formula derivation.
建立了以功效系数为目标函数的数学模型。
A mathematical model is proposed with the coefficient of efficacy as the objective function.
利用这个数学模型对实验数据进行非线性拟合,拟合的相关系数高于0.99。
The mathematic model was adopted for nonlinear least-squares data fitting to process experimental data, and a high correlation coefficient excelling 0.99 was obtained.
文中对如何建立数学模型,权系数对优化结果的影响等问题进行了说明。
In this paper, some questions have been explained such as the establishment of mathematical model, the effects of weight coefficients to optimum design results and so on.
最后,还建立了基本事件概率重要度系数的数学模型。
At last, the mathematical model has also been made on the coefficient of probability important degree of the elementary events.
设计一种新型半管均速管,并根据伯努利方程、连续性方程建立均速管仪表系数的数学模型。
A new half-tube averaging pitot tube is designed, and based on the Bernolli equation and continuity equation, a mathematics model is established.
在建立汽车发动机和传动系数学模型的基础上,编写了模拟汽车动力性和燃油经济性的计算机程序。
According to the model between the engine and the transmission, we draw up a computer program imitating the automobile motive power property and the automobile fuel economic property.
以考查点、难度系数和题型为主要控制参数建立了组卷问题的数学模型,并给出了用遗传算法解决组卷问题的新方法。
This paper presented a mathematical model with the main controlling parameters of the main points of knowledge, coefficient of difficulty and the structure of test question.
利用原型观测资料对已有的过饱和总溶解气体释放的数学模型进行验证,同时对释放系数公式进行了修正。
The existing mathematic models for the release of the supersaturated TDG were validated by use of the prototype observations. Simultaneously, the formulas for the release coefficients were modified.
结果:从药物的归经量化问题出发,研究方剂归经量化,首次提出两种中医方药归经量化中"归经系数"经典数学模型。
Results:Proceed from the channel tropism of medicine, two classical mathematics systems of channel tropism coefficient of chinese medicine prescriptions were first established.
在此基础上,着重阐述了如何建立结点基本信息数据库和约束关系数据库,从而构造出平面连杆机构的数学模型。
On this basis, it emphasized how to establish the node basic information database and the restricting relation database, and constructed out the mathematic model of the planar linkage mechanism.
本文研究光滑系数的耦合扩散过程,这是一个刻画分子马达系统的数学模型。
In this paper, we study coupled diffusion processes with smooth coefficients, which model the system of the molecular motor.
其中特别引入了潜在损失费用、区域形状系数等概念,进一步完善了数学模型。
In particular, the introductions of the potential cost, regional shape coefficient and so on, further improved the model.
本文运用模糊数学思想,按照相对隶属度原则,通过制定各门课程之间的权重系数,建立了一种新的奖学金评定的模糊优选数学模型。
In this paper, a new model of optimizing fuzzy selection for criteria of prize was built, using fuzzy theory and membership grade by specified weight coefficients of different courses.
本文介绍了用于材料导热系数瞬态测量的两种数学模型。它们考虑到在实验过程中材料膨胀的影响。
Two mathematical models of the dynamic measurement for thermal conductivity of materials are described by taking into account the effect of thermal expansion during the experiment.
依据储层变形与渗透率变化关系数学模型,推导建立了考虑储层变形的煤岩气藏单井产能公式。
Coal gas reservoir single well productivity formula was established by use of the model of reservoir permeability changes with reservoir deformation.
近年来填充床反应器CFD数学模型韵几个研究重点是动量交换系数、毛细管压力以及床层空隙率的非均匀分布性。
Several of the focuses of CFD model in packed-bed reactors were studied, namely, the momentum exchange coefficient, the capillary pressure and the void fraction.
通过对螺旋锥齿轮机械式铣齿机与CNC铣齿机之间加工调整参数转换原理的研究,推导了这两类机床运动轴数学模型;提出了求解各运动轴表达式系数的速度求导法。
By studying the transformation principle of the machining setting parameters from cradle style machine to CNC gear generator, mathematical kinematic models of every axis are deduced.
通过对螺旋锥齿轮机械式铣齿机与CNC铣齿机之间加工调整参数转换原理的研究,推导了这两类机床运动轴数学模型;提出了求解各运动轴表达式系数的速度求导法。
By studying the transformation principle of the machining setting parameters from cradle style machine to CNC gear generator, mathematical kinematic models of every axis are deduced.
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