Increasing arresting force and improving low-speed aero characteristics can increase allowable maximal landing mass with an enlarged envelope area, but changing glide slope angle makes little effect. 通过增大拦阻力、改善飞机的低速气动特性可以有效扩展适配包线范围,增加许用的最大着舰质量,但下滑角大小的改变对其影响不大。
In consideration of the uncertain initial landing attitude angle of lunar lander and the unknown slope of lunar surface, a soft landing dynamic model is built. 考虑到着陆初始姿态角的不定和月面斜角的未知,建立起着陆器软着陆动力学模型。
Furthermore, when the initial landing attitude angle and lunar slope are very large, the attitude angle of lunar lander changes little, which ensures a smooth landing of the lunar lander. 而且当着陆初始姿态角以及月面斜角很大时,月球着陆器姿态角变化少,保证月球着陆器平稳着陆。
The relation between human body dynamic response and level of the landing impact and relation between it and supine angle were obtained by regression analysis. 经分析计算,给出了人体动态响应与冲击强度以及它与仰卧角的关系式。
The result shows that the landing and takeoff angle of our jumpers is smaller than that of world elite jumpers. 结果表明,我国运动员三跳中的着地角和起跳角均小于世界优秀运动员,表现出摆动腿摆速偏慢和支撑腿的快速蹬伸能力较差。
A study to minimize the takeoff/ landing distances was accomplished by the optimization of parameters, such as engine installation angle, aircraft running angle of attack and nose landing gear protrusion. 为了确定飞机地面滑行过程中的最短滑跑距离,本文通过优化的方式给出发动机的最佳安装角和飞机地面滑跑的最佳迎角,以及前起落架的最佳凸伸量;
The difinite coordinate, inclination and azimuth of the target are often required for the well-path design and control in directional drilling, just as an airplane landing which needs the rational landing point, dip angle and navigation azimuth. 正如飞机降落需要有合理的着陆点、着陆倾角和导航方位一样,石油钻井中的井眼轨道设计与控制往往对靶点、入靶井斜角和入靶方位角也有明确的要求。
Microwave Landing System ( MLS) is an all-weather and precision approach landing system, providing angle and distance guidance information for approaching aircrafts. 微波着陆系统(简称MLS)是一种全天候的精密进近着陆系统,为进近着陆飞机提供角度和距离引导信息。