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首页> 外文会议>AHS International Annual Forum vol.2; 20070501-03; Virginia Beach,VA(US) >Development of a High Torque Density, Flexible, Composite Driveshaft
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Development of a High Torque Density, Flexible, Composite Driveshaft

机译：高扭矩密度，柔性复合驱动轴的开发

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摘要

An all-composite driveshaft incorporating integral flexible diaphragms is described. An approach was explored which obsoletes the split lines and associated fasteners required to attach metallic flex elements and either metallic or composite spacing tubes in current solutions. Sub-critical driveshaft weights half that of incumbent technology are projected for typical rotary wing shaft lengths. A description of the trade-off required between axial, bending, and torsional stiffness plus torque density and manufacturability is provided. Fully anisotropic material properties were mapped to the deeply sculpted diaphragm geometry and a parametric, numerical study of the complex shell undertaken. Spacing tubes are described, which comprise an integral part of the initial tooling but which remain part of the finished shaft and control natural frequencies and torsional stability. A concurrently engineered manufacturing process and design for performance is described which competes with incumbent metal solutions at lower weight and with the probability of improved damage tolerance and fatigue life.
机译：描述了结合有整体式柔性膜片的全复合驱动轴。探索了一种方法，该方法使在当前解决方案中连接金属挠性元件以及金属或复合间隔管所需的分割线和相关紧固件失效。对于典型的旋转翼轴长度，预计亚临界驱动轴的重量是现有技术重量的一半。提供了轴向，弯曲和扭转刚度以及扭矩密度和可制造性之间所需权衡的描述。将完全各向异性的材料特性映射到深雕刻的膜片几何形状，并对复杂壳体进行了参数化数值研究。描述了间隔管，其包括初始工具的组成部分，但仍然是成品轴的一部分，并控制固有频率和扭转稳定性。描述了一种同时设计的性能制造工艺和设计，该工艺与重量更轻的现有金属解决方案竞争，并且具有改善的损伤承受能力和疲​​劳寿命的可能性。

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