侧向力
- lateral force
-
本文提出了一种何时启动直接侧向力的控制方案,决定什么时候对姿态喷流发动机进行点火。姿控发动机有很多个,到底对那个喷流发动机点火呢?
This paper bring forward a control scheme which can decide to start the direct lateral force scheme and fire up those jet engines each at what time .
-
采用遗传算法的PDC钻头侧向力平衡优化设计
Optimization design of lateral force balance of PDC bits by genetic algorithm
-
改进BP算法的轮胎侧向力神经网络模型
A Neural Network Model with Improved Backward Error Propagation Algorithm for Tyres Sideforce
-
基于RBF网络的轮胎侧向力模型
The tire side-force model based on RBF neural network
-
加权残数法用于侧向力作用下开有n排孔列的剪力墙的近似解
The application of the method of weighted residuals to the Stress-Analysis of the shear walls with N-ROWS of openings subjected to lateral loads
-
本文用侧向力显微镜(LateralForceMicroscope,LFM)研究不同厚度类金刚石(Diamondlikecarbon,DLC)膜的摩擦性能。
Tribological properties of diamond like carbon ( DLC ) films with varying thickness were studied with lateral force microscopy ( LFM ) .
-
刀翼式PDC钻头的侧向力平衡设计
Lateral force balancing design of blade PDC bits
-
采用Maxwell模型计算了采出液在偏心环空内流动时的侧向力。
The Maxwell fluid was used to calculate the lateral force in the eccentric annular .
-
空空导弹反作用侧向力/气动力复合控制系统设计增强型ABS控制系统及其对汽车侧向稳定性的影响
Reaction jets / aerodynamics blended control system design for air-to-air missile Improved ABS and its influence for vehicle lateral stability
-
基于侧向力加载方式的Pushover分析方法
Study on Pushover analysis method based on lateral loading pattern
-
建筑结构考虑刚度变化的Pushover水平侧向力分布
Lateral load distribution for pushover analysis considering story stiffness for building structures
-
基于蚁群粒子群混合算法的PDC钻头侧向力平衡优化
Optimization of lateral force balance of PDC bits based on ant colony particle swarm hybrid algorithm
-
旋转导向钻井工具BHA侧向力的有限元仿真
Finite element simulation of lateral force on BHA of rotary steering drilling system
-
高阶振型影响下Pushover分析侧向力选取的研究
A study of load pattern selection of pushover analysis and the influence of higher mode
-
采用ANSYS软件对其分别进行了在垂直力、侧向力、驱动力和制动力工况下的静力学仿真分析,分析结果表明,该桥壳的强度和刚度满足要求。
ANSYS Mechanical is use to analyze the structural strength under the conditions of the vertical force , lateral force , driving force and braking force , respectively .
-
基于ADRC的直接侧向力/气动力复合控制系统设计
Design of Lateral Thrust and Aerodynamics Blended Control System Based on Auto Disturbance Rejection Controller
-
通过与纯气动控制方式的对比分析,验证了PW直接弹道侧向力+气动力复合控制方式及多模态控制方法的有效性。
Calculation shows that the blended control framework and method are more effective than pure aero-dynamical control .
-
本文对在高阶振型影响下钢筋混凝土框架结构的Pushover分析中侧向力的选取提出了建议。
Suggestions about load pattern selection in pushover analysis ( POA ) are made when higher mode influence is found important .
-
用改进的误差反向传播(BP)算法建立了轮胎侧向力的数学模型,研究了模型精度与网络结构、训练方法之间的关系。
An improved Backward Error Propagation Algorithm is used to build neural network model of tyre sideforce . The relations between the model precision and the network structure as well as the training method are researched .
-
运用通用的流体动力学软件FLUENT计算了不同车体断面在20m/s横风作用下受到的侧向力和倾覆力矩。
The commonly used fluid dynamics software FLUENT is used to calculate the lateral force and overturning moment upon different carbody sections under 20 m / s lateral wind .
-
采用弹体旋转飞行技术,虽然产生Magnus侧向力,但有效地克服了气动力的随机性。
Although producing the Magnus side force , it can get over the random properties effectively using body revolving techniques .
-
推导出高速客车侧向力引起车体构件的应力影响系数Kc的数值,它具有简化计算的实用价值;
The stress influence coefficient caused by lateral forces on high speed carbody members is deduced , which has the practical value of simplifying calculation .
-
采用不同侧向力分布模式对模型进行Pushover分析,比较了不同侧向力分布模式计算得到的能力曲线的差异。
The model was analyzed by Pushover method with different lateral force distribution patterns in order to get the capacity curves , and then compare the difference among them .
-
按照一种侧向力分布模式对所选结构进行Pushover分析得到基底剪力和顶层位移关系曲线,然后和时程分析进行比较,得到一种较理想的侧向力分布模式。
The curves of base shear to the roof displacement have been obtained by performing nonlinear time-history analysis and the pushover analysis with a Lateral load pattern of the structure .
-
第三,对基于位移的设计方法中的部分内容,如Pushover分析时的侧向力分布形式、目标位移的选择等从局部反应角度进行评价。
The third part of this paper concerns pushover analysis in displacement-based design , and estimate the effect of different lateral load pattern and structural target displacement in pushover analysis .
-
FG型防斜工具的显著特点是其防斜效果受钻压、转速等钻井参数影响较小,钻头侧向力大小基本不随钻压改变,在旋转过程中钻头侧向力方向可以不断变化。
The bit side force of FG type anti-deviation device is almost never affected by drilling parameters , and the direction of bit side force continuously vary while drill string is rotating .
-
基于刚性转鼓加载传递、XY传感测力法,导出表征轮胎不均匀性的径向力和侧向力变化量的传递关系。
Based on the method of load transfer from rigid drum and X-Y force sensors , the transfer relationship of the variations of radial force and lateral force , which are used to characterize the tire uniformity , is deduced .
-
为了突破PDC钻头结构对侧向力平衡优化设计的限制,采用比率选择、单点交叉、均匀变异和代沟操作等多项技术,利用遗传算法建立了PDC钻头侧向力平衡优化设计方法。
In order to break the limit to optimization design of lateral force balance from bit structures , a new optimization design method by genetic algorithm was developed , which employed algorithms of proportional selection , single point crossover , uniform mutation and generation communication .
-
结果表明:在迎角为35°,风速80m/s时,局部侧向力随滚转角的变化接近方波型,所有截面的相位与周期几乎一致;
The results indicate that at angle of attack of 35 °, the local side-force versus roll angle is nearly a square-wave curve . The period and phase of the wave is about the same for all measure stations .
-
为提高反导拦截弹的机动性和敏捷性,对反导拦截弹采用脉宽式(PW)直接弹道侧向力+气动力复合控制方式的实现原理进行了设计,并提出了多模态控制策略。
In order to increase maneuverability and agility of anti-missile interceptor , the framework of pulse width ( PW ) PIF-PAF ( French abbreviation ) blended control system is designed , and the control method based on multi-mode artificial intelligent control theory is presented .