| 某无人机基于载重任务的重心位置配置分析 |
| |
| 引用本文： | 李永泽. 某无人机基于载重任务的重心位置配置分析[J]. 科学技术与工程, 2011, 11(15): 3472-3475 |
| |
| 作者姓名： | 李永泽 |
| |
| 作者单位： | 西北工业大学航空学院,西安,710072 |
| |
| 摘 要： | 基于某无人机的载重任务特点和要求,提出和分析了一种通过利用载重物调节无人机任务阶段重心位置,改善爬升和下滑阶段升阻特性来提高性能的方法。推导了重心位置变化与配平升力线斜率、升致阻力系数之间的关系。分析了通过调节重心位置改善爬升和下滑阶段升阻特性,从而提高性能的可行性;并结合实际模型进行了爬升与下滑阶段升阻特性计算。通过与任务阶段重心位置始终保持不变设计方案的对比,得出了通过调节重心位置可有效改善飞机爬升和下滑阶段升阻特性,提高性能的结论。
|
| 关 键 词： | 无人机 重心 配平升力 配平阻力 爬升率 下滑率 |
| 收稿时间： | 2011-03-01 |
| 修稿时间： | 2011-03-03 |
Analyze the C.G of a UAV Based on Load Task |
| |
| liyongze. Analyze the C.G of a UAV Based on Load Task[J]. Science Technology and Engineering, 2011, 11(15): 3472-3475 |
| |
| Authors: | liyongze |
| |
| Affiliation: | LI Yong-ze,YUAN Chang-sheng,ZHANG Li(School of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,P.R.China) |
| |
| Abstract: | Based on the task features of a UAV's load mission requirements,it proposes and analyzes a way to improve the performance of UAV by using the physical load to adjust the c.g of the model aircraft during the mission phase.The climb and decline stages of lift-drag features is improved,and derived the relationship between trim lift induced drag and lift slope caused by the change of center of gravity.The feasibility of improving the lift-drag characteristics during climb and fell stage by adjusting the positio... |
| |
| Keywords: | UAV center of gravity trim lift trim drag rate of climb rate of down |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《科学技术与工程》浏览原始摘要信息 |
|
点击此处可从《科学技术与工程》下载全文 |
|
