基于直升机舰面起降动态仿真的风限图计算

吉洪蕾; 赵辉; 陈仁良; 吴文韬

doi:10.7527/S1000-6893.2018.22156

航空学报 >

2018 , Vol. 39 >Issue 11: 122156 - 122167

DOI: https://doi.org/10.7527/S1000-6893.2018.22156

流体力学与飞行力学

基于直升机舰面起降动态仿真的风限图计算

吉洪蕾 ,
赵辉 ,
陈仁良 ,
吴文韬

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1. 重庆大学航空航天学院, 重庆 400030;
2. 南京航空航天大学航空宇航学院直升机旋翼动力学国家级重点实验室, 南京 210016;
3. 中国船舶工业系统工程研究院, 北京 100094

收稿日期: 2018-03-23

修回日期: 2018-06-06

网络出版日期: 2018-06-15

基金资助

国家自然科学基金（11672128）；中央高校基本科研业务费专项资金（2018CDXYHK0016）

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Wind-over-deck envelope calculation based on simulation of helicopter shipboard operations

JI Honglei ,
ZHAO Hui ,
CHEN Renliang ,
WU Wentao

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1. College of Aerospace Engineering, Chongqing University, Chongqing 400030, China;
2. National Key Laboratory of Science and Technology on Rotorcraft Aeromechanics, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
3. Systems Engineering Research Institute, Beijing 100094, China

Received date: 2018-03-23

Revised date: 2018-06-06

Online published: 2018-06-15

Supported by

National Natural Science Foundation of China (11672128); the Fundamental Research Funds for the Central Universities (2018CDXYHK0016)

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摘要

建立了基于直升机舰面起降动态仿真的风限图（WOD）计算方法，综合计入舰船尾流、直升机运动和驾驶员操控等多因素的作用提升风限图计算的准确度。基于耦合舰船非定常尾流的飞行动力学模型，发展了适于直升机多轴协同操控的驾驶员模型，建立了舰面起降轨迹的数学描述和生成方法，形成计入舰船尾流、直升机运动和驾驶员操控等多因素综合作用的直升机舰面起降动态仿真方法。在此基础上，总结风限图计算判据，建立风限图计算方法。计算结果表明，某些风况下直升机在舰面起飞和降落过程中受到舰船尾流的干扰远大于在甲板上方悬停时受到的作用。本文方法能够捕捉到不同起降点和起降方式导致舰船尾流时空变化的干扰，与传统计算方法相比，显著提升了风限图计算的准确度。

关键词： 直升机; 飞行动力学; 舰船尾流; 动态配合; 风限图

本文引用格式

吉洪蕾 , 赵辉 , 陈仁良 , 吴文韬 . 基于直升机舰面起降动态仿真的风限图计算[J]. 航空学报, 2018 , 39(11) : 122156 -122167 . DOI: 10.7527/S1000-6893.2018.22156

Abstract

This paper presents a Wind-Over-Deck (WOD) envelope calculation method by simulation of helicopter shipboard operations. Impacts of ship airwake, helicopter motions, and pilot controls are all taken into consideration to improve the accuracy of WOD envelope calculation. First, based on the flight dynamics model coupling with unsteady ship airwake, a pilot model is developed for helicopter maneuvering requiring multi-axis controls. Then, the mathematical description and generation algorithms of the classical helicopter shipboard flight trajectories are proposed. Finally, a dynamic simulation method for helicopter shipboard operations is obtained considering the impacts of ship airwake, helicopter motions and pilot controls comprehensively. Based on the simulation results of helicopter shipboard operations, the rejection criteria for WOD envelope calculation are summarized, and a calculation method of WOD envelope is developed. The calculated results show that the impacts of the ship airwake along the shipboard launching and recovery trajectories on helicopter flight states and pilot controls are greater than those above the landing spots in some WOD conditions. The proposed method can capture the impacts of the temporal and spatial variations of ship airwake above different landing spots and along different flight trajectories. In comparison with the traditional WOD calculation method, the proposed method significantly can improve the accuracy of WOD calculation.

Key words： helicopter; flight dynamics; ship airwake; dynamic interface; wind-over-deck envelope

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