精密伺服机构传动误差数据的采集与分析
发布时间：2018-11-25 20:34
【摘要】：本文以动态测量方法为基础,以高精度的圆光栅为传感器,采用同步采集的模式,构建了一套高精度的齿轮传动误差动态测试系统。论文重点对信号处理方法进行了研究,包括去噪处理、频域分析和盲信号处理,并将这些方法应用到了传动误差信号的处理当中。接着给出了从传动误差曲线中计算出几项齿轮误差数据的方法。最后对伺服机构进行了传动误差的测试,同时对测试数据进行了分析和计算。本文主要研究内容如下:1.对传动误差的测试方法进行了研究。以动态测量法作为基础来进行传动误差的测试,由于测试系统采用了高分辨率的数据采集卡,最终选用了计数测量法中的直接计数测量法。2.针对导引头伺服机构的特点,设计了传动误差测试系统的整体方案。在硬件部分当中,主要对所选硬件的功能进行了介绍,包括角度编码器、数据采集卡、多轴运动控制卡、驱动器。在软件部分当中,以LabVIEW作为软件开发工具,采用模块化编程思想,分别实现了初始化设置、数据采集、数据存储、数据分析、数据显示与打印报表多项功能。3.对传统滤波器去噪和小波去噪这两种去噪方法进行了研究,并将传统滤波器去噪的方法应用到了传动误差的分析中,分析结果说明:该方法能够有效的滤除信号中的噪声,具有良好的实际效果。滤波之后,对传动误差曲线进行了频域分析,通过频谱图观察转频和齿频信息的准确性。4.为了得到单个齿轮的传动误差,对盲源分离理论进行了深入的研究,并尝试将该理论应用到齿轮副传动误差曲线的分离中来。分离得到单个齿轮的传动误差后,再根据齿轮误差分析理论,对处理后的传动误差曲线进行分析和计算,得到齿轮的单项误差数据。5.对整个系统进行软硬件联调,对采集到的数据进行分析处理,得到实测结果。
[Abstract]:Based on the dynamic measurement method and the high precision circular grating as the sensor, a set of dynamic measuring system of gear transmission error is constructed in this paper. This paper focuses on the research of signal processing, including denoising, frequency domain analysis and blind signal processing, and applies these methods to the processing of transmission error signals. Then the method of calculating some gear error data from the transmission error curve is given. Finally, the transmission error of the servo mechanism is tested, and the test data are analyzed and calculated. The main contents of this paper are as follows: 1. The measuring method of transmission error is studied. Based on the dynamic measurement method, the transmission error is tested. Because the high resolution data acquisition card is used in the test system, the direct counting measurement method is used in the counting measurement method. 2. According to the characteristics of seeker servo mechanism, the whole scheme of transmission error testing system is designed. In the hardware part, the functions of the selected hardware are introduced, including angle encoder, data acquisition card, multi-axis motion control card and driver. In the software part, using LabVIEW as the software development tool and adopting the modular programming idea, the functions of initialization setting, data acquisition, data storage, data analysis, data display and report printing are realized respectively. 3. The traditional filter denoising method and wavelet de-noising method are studied, and the traditional filter denoising method is applied to the analysis of transmission error. The analysis results show that this method can effectively filter the noise in the signal. It has good practical effect. After filtering, the transmission error curve is analyzed in frequency domain, and the accuracy of frequency conversion and tooth frequency information is observed by spectrum diagram. 4. In order to obtain the transmission error of a single gear, the blind source separation theory is deeply studied, and the theory is applied to the separation of the transmission error curve of the gear pair. After the transmission error of a single gear is separated, the transmission error curve is analyzed and calculated according to the theory of gear error analysis, and the single error data of the gear is obtained. The whole system is combined with software and hardware, and the collected data are analyzed and processed, and the measured results are obtained.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP274.2;TN911.7
[Abstract]:Based on the dynamic measurement method and the high precision circular grating as the sensor, a set of dynamic measuring system of gear transmission error is constructed in this paper. This paper focuses on the research of signal processing, including denoising, frequency domain analysis and blind signal processing, and applies these methods to the processing of transmission error signals. Then the method of calculating some gear error data from the transmission error curve is given. Finally, the transmission error of the servo mechanism is tested, and the test data are analyzed and calculated. The main contents of this paper are as follows: 1. The measuring method of transmission error is studied. Based on the dynamic measurement method, the transmission error is tested. Because the high resolution data acquisition card is used in the test system, the direct counting measurement method is used in the counting measurement method. 2. According to the characteristics of seeker servo mechanism, the whole scheme of transmission error testing system is designed. In the hardware part, the functions of the selected hardware are introduced, including angle encoder, data acquisition card, multi-axis motion control card and driver. In the software part, using LabVIEW as the software development tool and adopting the modular programming idea, the functions of initialization setting, data acquisition, data storage, data analysis, data display and report printing are realized respectively. 3. The traditional filter denoising method and wavelet de-noising method are studied, and the traditional filter denoising method is applied to the analysis of transmission error. The analysis results show that this method can effectively filter the noise in the signal. It has good practical effect. After filtering, the transmission error curve is analyzed in frequency domain, and the accuracy of frequency conversion and tooth frequency information is observed by spectrum diagram. 4. In order to obtain the transmission error of a single gear, the blind source separation theory is deeply studied, and the theory is applied to the separation of the transmission error curve of the gear pair. After the transmission error of a single gear is separated, the transmission error curve is analyzed and calculated according to the theory of gear error analysis, and the single error data of the gear is obtained. The whole system is combined with software and hardware, and the collected data are analyzed and processed, and the measured results are obtained.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP274.2;TN911.7
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