英国旋翼载荷分析概况

本文介绍英国的直升机旋翼载荷分析概况,英国第一代分析程序只适用于简单的桨毂型式和桨叶,到80年代初为较复杂和完善的第二代分析系统所替代,后者功能更强,适用范围更广。本文在简单介绍了第一代,主要是第二代分析系统之后,给出了一些用第二代分析系统计算的结果,并与实测数据比较以反映英国旋翼载荷分析计算结果与实验的吻合程度。最后,本文亦简要介绍了英国在旋翼载荷分析方面进一步的改进与工作,通过这些工作将建立英国第三代旋翼载荷分析系统。

A Survey of Rotor Load Analysis in the UK

A survey of helicopter rotor load analysis systems developed in the UK is presented in this paper. The first generation analysis system in the UK could treat only simple hub and blade configurations and was superseded in the early 1980s by a comprehensive second generation analysis. The latter system is much more versatile than the original. In this paper, firstly, these analysis systems are briefly described Then some results predicted by using the second generation analysis system are presented and the level of correlation between the theory and the test data is shown. Lastly, improvements to the second generation system and the future work for predicting the rotor load in the UK are mentioned which will lead to a third generation analysis system.