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对共轴双桨叶双旋翼系统及单轴双桨叶直升机在各向异性支座上的“地面共振”问题进行了数值分析。对计算结果及问题进行了讨论
The “ground resonance” problem of coaxial double-bladed twin-rotor system and single-axle double-bladed helicopter on an anisotropic bearing is numerically analyzed. The calculation results and problems are discussed