A real-time measurement system of fluid power

2019 Fiscal Year Final Research Report

• Project/Area Number: 17K06226
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Dynamics/Control
• Research Institution: Yokohama National University
• Principal Investigator: SANADA KAZUSHI 横浜国立大学, 大学院工学研究院, 教授 (30187265)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Keywords: 機械計測 / エネルギー / 流量計測 / 推定 / カルマンフィルタ

Outline of Final Research Achievements

As a result obtained throughout the research period, it becomes possible to construct a fluid power real-time measurement system using the optimized finite element model as a model of pipe dynamics. It has been shown that the real-time measurement is performed by optimizing the size of the optimized finite element model for the issues listed at the application form. Specifically, it has been found that if the number of pipe divisions was set to 5, the calculation time is approximately 0.2 ms (sampling frequency 5 kHz), and real-time measurement taking into account unsteady laminar pressure loss is possible.

Free Research Field

制御工学

Academic Significance and Societal Importance of the Research Achievements

本研究課題は、配管によって伝達される流体エネルギーを実時間で計測するシステムを開発した。流体エネルギーは流量と圧力の積であり、本手法は流れの抵抗となる流量センサを用いずに、圧力センサだけを用いることを特徴としている。本手法を用いれば、アクチュエータを駆動する流体エネルギーを実時間で計測でき、機械の運転条件に応じたエネルギー回生制御の高度化が可能となり、燃費向上や地球環境問題の解決に大きく貢献する。