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首页> 外文会议>AHS 59th Annual Forum Proceedings Vol.1 May 6-8, 2003 Phoenix, Arizona >An Examination of Selected Problems in Rotor Blade Structural Mechanics and Dynamics
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An Examination of Selected Problems in Rotor Blade Structural Mechanics and Dynamics

机译：转子叶片结构力学和动力学中若干问题的检验

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摘要

The deformation of rotorcraft blades are frequently classified as moderate, exceeding the small deformation limitation of typical beam finite elements. Advances in computer capabilities have made possible an implementation of a hybrid element combining rigid and flexible body kinematics in the Rotorcraft Comprehensive Analysis System (RCAS). Two challenges to new software are to verify the correctness of the implementation and to ascertain whether it represents an improvement. Comparisons are made to analytical results, to measurements from the "Princeton Beam" and Maryland vacuum chamber experiments, and to UH-60 flight test data. Inspection of these comparisons lead to the conclusion that the results obtained with RCAS correlate well with analytical and experimental results, sometimes representing significant improvements.
机译：旋翼机叶片的变形通常被归类为中等，超过了典型的梁有限元的变形极限。计算机功能的进步使得在旋翼飞机综合分析系统（RCAS）中实现结合了刚体和挠性人体运动学的混合元件成为可能。新软件面临的两个挑战是验证实现的正确性并确定它是否代表一种改进。对分析结果，“普林斯顿束”和马里兰真空室实验的测量结果以及UH-60飞行测试数据进行了比较。检查这些比较得出的结论是，用RCAS获得的结果与分析和实验结果紧密相关，有时代表着显着的改进。

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