Engineering Research Equipment Grant: Rotorcraft and Spacecraft Structural Dynamics Test Facilities

该项目提供设备，以支持两类航空航天结构，旋翼飞机和航天器的当前和未来研究。通用旋翼机的研究包括振动旋翼载荷和旋翼阻抗测量、通用旋翼-机身稳定性测试和通用旋翼-机身振动测试。对特定转子类型的测试也进行了讨论。这些测试包括气动弹性稳定性测试、振动特性测试和尾锥振动测试。对于航天器结构研究，将对空间结构的一个比例部分进行测试，以验证有限元分析技术。提供的设备完成了伦斯勒理工学院正在建设的两个测试设备，一个模型转子阻抗测试设备和一个振动测试设备。动力驱动系统和支撑塔、铰接式传动轴组件和补充数据采集设备为第一个设施提供。换能器和其他硬件以及信号处理、模态分析和数据简化设备为第二个设施提供。

This project provides for equipment to support current and future research on two classes of aerospace structures, rotorcraft and spacecraft. The general rotorcraft research addresses vibratory rotor loads and rotor impedance measurements, general rotor-airframe stability testing, and general rotor-airframe vibration testing. Tests for specific rotor types are addressed as well. These include aeroelastic stability tests, vibration characterization tests, and tail cone vibration tests. For spacecraft structures research, a scaled portion of a space structure, representative of a space structure, will be tested to validate finite element analysis techniques. The equipment provided completes two test facilities under construction at Rensselaer Polytechnic Institute, a model rotor impedance test facility, and a shake test facility. A power drive system and support pylon, an articulated drive shaft assembly, and supplementary data acquisition equipment are provided for the first facility. Transducers and other hardware as well as signal processing, modal analysis and data reduction equipment are provided for the second facility.