Investigation of vibration impact on metrological characteristics of measuring devices in conditions of pump station № channel named after Satpayeva

7th International Conference: Modern Technologies For Non-Destructive Testing

Ayzhambayeva, S.Zh.^1 ; Tyskenova, D.O.^1 ; Vedyashkin, M.V.^2

Measuring Technics and Instrument Making, Karaganda State Technical University, Karaganda, Kazakhstan^1

Tomsk Polytechnic University, School of Non-Destructive Testing, Tomsk, Russia^2

关键词: Measurement techniques;    Measuring instruments;    Metrological characteristics;    Real operating conditions;    Sinusoidal vibration;    Uninterrupted operations;    Vibration characteristics;    Vibration resistance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/457/1/012024/pdf
DOI  :  10.1088/1757-899X/457/1/012024

来源: IOP

【 摘 要 】

The article presents the results of the investigation of the effect of vibration on the metrological characteristics of measuring instruments, measurement methods and measurement techniques in real operating conditions. The topicality of the work is to ensure the reliability of the measurement results of the pump unit operation parameters in order to achieve the uninterrupted operation of the pump station objects. The investigation was carried out using the method 102-1, a vibration test was performed under the influence of sinusoidal vibration. The tests were carried out by smoothly changing the frequency in the specified range from lowest to highest. The conducted vibration studies made it possible to establish when the "normal" vibration becomes a "problem" or exceeds the permissible levels, the results obtained helped to determine the source and cause of the vibration, thereby ensuring effective prevention and eliminating the malfunctions of pumping units. In addition, it is established that when vibration occurs at several frequencies, it separates one frequency from the other so that it is possible to obtain each individual vibration characteristic. It is suggested at the pumping station to check the measuring instruments for vibration resistance, which allows to determine whether there are any additional errors of the instrument under the influence of vibrations during measurement, for example, as a result of tearing off the measuring tips of the CMM touch sensor from the measured surface. In the course of the study, we found that the use of vibration damping with the use of liquids for manometric equipment is quite effective in the conditions of operation of the pumping station. It is established that the most effective method is vibrodempfirovanie, which consists in reducing vibration by strengthening the design of friction processes that dissipate vibrational energy. This can be achieved by immersing the pressure gauge in the liquid, reducing the vibration amplitudes even in the resonance zone will depend on the damping ratio of the oscillations n..