工程估算

将卷弧翼按照相同投影面积的平板翼进行工程估算，得到升力系数、阻力系数、俯仰力矩系数、俯仰阻尼导数、滚转阻尼导数曲线。

The lift coefficients 、 drag force coefficients 、 pitch moment coefficients 、 pitch damping moment derivatives and roll damping moment derivatives are obtained from engineering calculation through looking wrap around fins as flat fins of the same projection aera .

文中引入附加质量、附加表面积的概念，提出基于细长体理论的非圆截面（矩形、正方形、三角形等）弹体法向气动力工程估算方法，并对此方法进行了验证。

In this paper , the concept of added mass and additional apparent area are applied , the method of normal force engineering calculation based on slender body theory of missile body having non-circular shape cross sections ( rectangle , square , triangle etc ) is presented .

我们将寄上工程估算，仅供参考。

We will send you an estimate for the work without obligation .

基于CORBA的潜艇水下噪声工程估算集成软件

Submarine noise computation engineering integrated software underwater based on CORBA

含缺陷结构J积分工程估算方法研究进展

The Progress of Engineering Evaluation Method of J-integral in Structure Containing Defect

含环向裂纹等径焊制三通极限压力（II）&工程估算方法

Limit pressure for equal-diameter welded pipe branch junctions containing circumferential cracks part (ⅱ) & an approximate calculation approach

合理选择防热罩外形，用CFD方法计算了防热罩以亚、跨、超声速飞行时的阻力特性，并与工程估算方法作对比。

CFD methods are used to predict the subsonic , transonic and supersonic aerodynamics of the selected shape and compared with the Newtonian hypersonic estimation .

大变形条件下具有不同裂纹长度试件的断裂韧性JC工程估算螺旋桨滑流与飞机部件气动干扰的工程估算方法研究

AN APPROACH TO THE COMPUTATION OF THE FRACTURE TOUGHNESS J_c of SPECIMENS WITH DIFFERENT CRACK LENGTHS An Investigation of the Engineering Model for the Aerodynamic Interactions of Propeller Slipstream with Aircraft Parts

对EPRI工程估算方法的研究

Study on EPRI Engineering Estimate Approach

压力容器及管道LBB稳定性分析的工程估算方法

The engineering assessment method for LBB stability analysis in pressure vessels and pipes

根据SCT试样应变疲劳裂纹扩展试验研究结果，在考虑了压力容器高应变区几何形状和材质变化对应变疲劳裂纹扩展参量影响后，提出了一种压力容器高应变区应变疲劳裂纹扩展速率工程估算方法。

According to the research results , an engineering estimation method for propagation rate of strain fatigue cracks in high strain region of pressure vessel is established .

近年来神经网络的迅速发展，并且神经网络中的Bp算法在工程估算中已经取得了可喜的成绩，但是Bp算法是基于梯度下降的方法收敛速度慢，容易陷入局部极小点等缺陷。

In recent years , the rapid development of neural networks and the Bp neural network algorithm which estimates the project cost has made encouraging achievements , but Bp algorithm is based on gradient descent method converges slowly , easy to fall into local minimum points of defects .

本文探讨数字光纤中继系统中的抖动积累问题，具体分析谐振槽路（RC）作定时提取时的抖动积累特性，并给出适于工程估算抖动积累特性的简化公式。

This paper inquires into the jitter accumulation in digital optical fiber regenerative transmission systems . Jitter accumulation properties with the resonant circuit as the timing circuit are discussed , and a simplified formula for the jitter accumulation that adapts to that estimation in engineering is given .

本文介绍了几种J积分工程估算方法，提出了当前这些估算方法存在的问题，讨论了今后的发展方向，为进一步发展含缺陷结构断裂评定方法提供帮助。

In this paper , some engineering evaluation methods of J-integral are described , some problems in these methods are raised , and the developing trend of these methods is discussed . This paper provides assistant for advanced development of fracture assessment method of structure containing defects .

在讨论LRCS一般计算方法的基础上，重点针对镜面反射目标，提出了一种简便的LRCS工程估算方法，并应用于激光角反射器目标和猫眼目标，得到了相应的LRCS估算公式；

The general method for calculating LRCS was derived and discussed . A very simple method for calculating the LRCS for direct reflection targets was proposed and applied to the optical corner reflector and " cat-eye " target respectively , with the formulas for estimating their LRCS .

扩声系统语言清晰度的工程估算和修正

Engineering Estimation and Modification of Speech Articulation in Sound Reinforcement System

同时，还给出了一些有用的工程估算公式供参考。

Meanwhile , some useful estimation formulas have been given too .

合成孔径雷达图像辐射分辨率工程估算公式的校正

A Corrected Engineering Estimation Formula of Radiometric Resolution in SAR Images

不同组配焊接接头失效评定曲线的工程估算法研究

Engineering Treatment Model Analysis of Failure Assessment Curve for Mis-matched Weldment

射流式旋涡发生器最佳速度比的工程估算方法

A prediction method for optimum velocity ratio of air jet vortex generator

一种微波通信中大气散射干扰的工程估算

Engineering Estimation Method of Interference Due to Atmosphere Scattering in Microwave Communications

复合材料层压板低能量冲击后剩余抗压强度的工程估算

A Simplified Method of Evaluating Compression after Impact Strength for Composite Laminate

双裂纹间弹塑性干涉效应的工程估算

Engineering Estimation of Elasto Plastic Interaction Effect Between Double Cracks

焊接残余应力工程估算法的数值分析验证

The numerical demonstration of the engineering estimation method of welding residual stress

基于应力三轴性的焊接接头断裂参量工程估算

Engineering assessment of fracture criterion of welded joints based on stress - triaxiality

一个通用的微型飞行器气动工程估算环境的开发

The General MAV 's Aerodynamics Engineering Estimation Environment Development

利用强度增强技术的磁流变液离合器的设计、工程估算和实验研究

The Design , Calculation and Experimental Research of Magneto-rheological Clutch by Strength-Enhancing Techniques

侧向喷流干扰工程估算模型研究

A study for engineering prediction model of jet disturbance

谈铁路工程估算编制办法

Discussion on estimation making method of railway project

大飞机乘员舱热载荷的工程估算方法

Engineering estimation methods of thermal load of airplane