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    天线座动态跑合质量数字化评估研究

    Research on Digital Assessment of Dynamic Matching Quality of Antenna Pedestal

    • 摘要: 本文通过天线座伺服传动系统中的相应位置布置振动和噪声传感器,实时采集天线座动态跑合过程中的振动加速度和噪声信号,采用滑动平均、时域同步平均、小波阈值降噪算法,实现振动加速度和噪声信号处理。以LabVIEW为平台,开发天线座动态跑合质量数字化评估系统,并以某型天线座开展在不同转速下动态跑合试验,并对振动加速度和噪声进行时域分析,同步分析了振动加速度和声压级指标级指标。试验结果表明天线座进行总体振动能量较低,动态跑合较为平稳,伺服传动系统啮合较为良好,天线座动态跑合质量均满足要求。同时,也验证了天线座动态跑合质量数字化评估系统的有效性,为天线座的动态跑合质量评估提供了科学依据。

       

      Abstract: This study presents a digital assessment method for the dynamic run-in quality of an antenna pedestal based on vibration and noise. Vibration and noise sensors were strategically installed in the servo drive system of the antenna pedestal to collect vibration acceleration and noise signals in real-time during the dynamic run-in process. Signal processing techniques, including moving average, time-domain synchronous averaging, and wavelet threshold denoising algorithms, were employed to effectively process the vibration acceleration and noise signals. A digital assessment system for the dynamic run-in quality of the antenna pedestal was developed using LabVIEW. Experiments were conducted on a specific type of antenna pedestal under different rotational speeds to analyze the vibration acceleration and noise signals in the time domain. The vibration acceleration and sound pressure level indices were simultaneously evaluated. The experimental results demonstrated that the antenna pedestal exhibited low overall vibration energy, a smooth dynamic run-in process, and good engagement of the servo drive system. The dynamic run-in quality of the antenna pedestal met the required standards. Additionally, the results validated the effectiveness of the digital assessment system for dynamic run-in quality, providing a scientific basis for evaluating the dynamic run-in quality of antenna pedestals.

       

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