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首页> 外文期刊>Experimental Techniques >Design of a High Speed Data Acquisition System for a Transient Rotor-Dynamic Test Rig
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Design of a High Speed Data Acquisition System for a Transient Rotor-Dynamic Test Rig

机译：瞬态转子动态试验台高速数据采集系统设计

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摘要

Rotor test rigs which simulate transient dynamic events such as blade tip rub with inner surface of casing require high frequency data acquisition capability. Data acquisition from a rotating component is conventionally done with a slip-ring arrangement or telemetric transmission. While slip rings introduce noise into the signal, the telemetric transmission works out to be very expensive. As an alternate solution, a novel data acquisition system is designed in order to acquire and store data for a short duration of time and at a high sampling rate of 35 kHz. This system is calibrated through standard tests and provides a simple and efficient mode of data capture. By virtue of being mounted on the rotor, it eliminates the need of transreceiver system and hence the associated signal noise. The system is designed and tested to sustain centrifugal loads corresponding to a maximum speed of 2000 rpm.
机译：模拟瞬态动态事件（例如叶片尖端与壳体内表面的摩擦）的转子测试台需要高频数据采集功能。从旋转部件获取数据通常是通过滑环装置或遥测传输来完成的。虽然滑环将噪声引入信号中，但遥测传输的成本非常高。作为一种替代解决方案，设计了一种新颖的数据采集系统，以便在短时间内以35 kHz的高采样率采集和存储数据。该系统通过标准测试进行了校准，并提供了一种简单有效的数据捕获模式。通过安装在转子上，它消除了收发系统的需要，从而消除了相关的信号噪声。该系统经过设计和测试，可承受相当于2000 rpm最大速度的离心负载。

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