Simulation and experimental verification on dynamic calibration of fuel gear flowmeters
| Autor: | Nanyue Xu, Yihao Du, Bin Wang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Test bench
Computer simulation business.industry Computer science Applied Mathematics 020208 electrical & electronic engineering 010401 analytical chemistry Flow (psychology) Response time Mechanical engineering 02 engineering and technology Computational fluid dynamics Condensed Matter Physics Fuel injection 01 natural sciences 0104 chemical sciences Volumetric flow rate 0202 electrical engineering electronic engineering information engineering Calibration Electrical and Electronic Engineering business Instrumentation |
| Zdroj: | Measurement. 138:570-577 |
| ISSN: | 0263-2241 |
| DOI: | 10.1016/j.measurement.2019.02.044 |
| Popis: | Fuel flow rate is one of the main control variables in aeroengine control loops. Both reliable operation and ground testing require accurate measurements of fuel flow rate. Because of high reliability and accuracy, gear flowmeters are widely used to measure the flow rate in ground testing of fuel system. This paper presents a method using piezoelectric stack driven double nozzle-flapper valve to produce excitation flow in pipeline for dynamic calibration of gear flowmeters. Principle and composition of the system are proposed. CFD numerical simulation for the calibration circuit is conducted and the flow excitation process is analyzed. The integrated physical device based on the method is constructed and the excitation experiment is implemented on a dedicated test bench of fuel servovalves to verify the effectiveness. It is shown that the experimental response time and excitation process are basically consistent with the simulated results, and that the flow excitation system proposed in this paper is feasible, which provides a reference to development of the dynamic calibration system for gear flowmeters ranged from the small to the medium flow rate. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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