| 引用本文: | 商霖,张海瑞,李璞,等.一类飞行器载荷设计的三分段方法研究与应用.[J].国防科技大学学报,2019,41(2):63-68.[点击复制] |
| SHANG Lin,ZHANG Hairui,LI Pu,et al.Research and application of three section method of load design for a kind of aircraft[J].Journal of National University of Defense Technology,2019,41(2):63-68[点击复制] |
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| 一类飞行器载荷设计的三分段方法研究与应用 |
| 商霖1, 张海瑞1, 李璞1,2, 马友林1 |
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(1. 中国运载火箭技术研究院， 北京 100076;2. 国防科技大学 空天科学学院， 湖南 长沙 410073)
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| 摘要: |
| 为有效解决传统载荷设计方法中存在的诸多不足，提出一种适用于一类飞行器载荷设计的三分段法，即分段刚度、分段质量和分段气动。该方法能够很好地逼近飞行器的真实质量分布和气动载荷分布。针对简化飞行器，分别利用三分段法、理论计算法和质量分站法计算其模态参数和截面载荷。结果表明，三分段法和理论计算法在模型参数、计算原理上是一致的，基本可以认为是一种方法，因而它们的模态参数和截面载荷完全吻合；质量分站法所得左、右截面载荷不一致，且相差很大，还不符合真实载荷情况。总之，采用三分段法能够得到较为真实、合理的飞行器截面载荷分布，且工程应用简便,方法合理、可信，同时还可以在很大程度上降低飞行器载荷设计和结构设计的难度。 |
| 关键词: 飞行器 载荷设计 三分段法 质量分站法 理论计算法 |
| DOI：10.11887/j.cn.201902010 |
| 投稿日期：2017-12-04 |
| 基金项目:国家自然科学基金资助项目（11602306） |
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| Research and application of three section method of load design for a kind of aircraft |
| SHANG Lin1, ZHANG Hairui1, LI Pu1,2, MA Youlin1 |
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(1. China Academy of Launch Vehicle Technology, Beijing 100076, China;2. College of Aeronautics and Astronautics, National University of Defense Technology, Changsha 410073, China)
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| Abstract: |
| In order to solve effectively many shortcoming of traditional load design, a three section method, namely segment stiffness, segment mass and segment aerodynamics, for the load design of aircraft was presented. The method approximates the actual mass distribution and aerodynamic load distribution of the aircraft. For a simplified aircraft, the modal parameters and the section load were calculated by using the three section method, the theoretical method and the mass partition method. The results show, the three section method and the theoretical method are consistent with the model parameters and the calculation principle, which largely can be considered as a method, so their modal parameters and the section load are identical. The load of the left and right section of the mass partition method is pretty inconsistent, and it is not in accordance with the actual load condition. In a word, the three section method can get a more real and reasonable section load distribution, and the engineering application is simple, reasonable and reliable. At the same time, the method can reduce the design difficulty of missile load and structure. |
| Keywords: aircraft load design three-section method mass-partition method theoretical calculation method |
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