Estimate of the inertial torque in rotating shafts - a metrological approach to signal processing

[摘要] This article studies the setting of the method to model the inertial torque in the acceleration regimes of a rotating axis system. The angular speed measurement to obtain an estimated acceleration and the moment of inertia axis of the variables are used to calculate the inertial torque. The evaluated dynamic regimes are acceleration ramps between levels (intervals) of angular speed, which are implemented using variable speed drives that are coupled to AC motors. The article focuses on assessing the main parameters in signal processing, such as the derivation of the speed signal, application of digital filters and data- smoothing methods, and their effects on the main features of interest in the generated torque curves, such as the peak torque amplitude, ascending and downward slopes, stability and repeatability. A qualitative approach was performed to identify the measurement uncertainty contributions. Thus, the validation methodology of the processing methods and the proposed physical principle are feasible.

[发布机构] Universidade Federal da Bahia (UFBA), Salvador - BA, Brazil^1;Instituto National de Metrologia, Qualidade e Tecnologia (INMETRO), Rio de Janeiro RJ, Brazil^2;Technische Universität Ilmenau (TU-Ilmenau), Ilmenau, Germany^3

[效力级别] 力学 [学科分类] 力学，机械学

[关键词] Acceleration ramps;Dynamic regimes;Measurement uncertainty;Moment of inertia;Physical principles;Processing method;Qualitative approach;Validation methodologies