Email this article A Technique for Estimation of the Errors in Measurements of the Phase-Frequency Characteristics of Nonlinear Vibration-Proof Systems
- Authors: Varzhitskii L.A.1
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Affiliations:
- Samara State Aerospace University (National Research University)
- Issue: Vol 59, No 8 (2016)
- Pages: 838-844
- Section: Mechanical Measurements
- URL: https://journals.rcsi.science/0543-1972/article/view/245456
- DOI: https://doi.org/10.1007/s11018-016-1054-6
- ID: 245456
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Abstract
A technique based on a discrete model of a vibratory process and an algorithm for calculating cumulative phases by means of a discrete Hilbert transform is developed. The digit capacity of an analog-to-digital converter and size of the sample for measurements of the phase difference of signals with error less than 0.001° are determined by numerical modeling. The performance of the proposed algorithm is confirmed using physical signals in the course of life tests of a damper made of a metal rubber wire material.
About the authors
L. A. Varzhitskii
Samara State Aerospace University (National Research University)
Author for correspondence.
Email: lavarj1950@gmail.com
Russian Federation, Samara
