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成果報告書詳細
管理番号20170000000593
タイトル*平成28年度中間年報 航空機用先進システム実用化プロジェクト 次世代降着システム研究開発
公開日2017/8/30
報告書年度2016 - 2016
委託先名住友精密工業株式会社
プロジェクト番号P15005
部署名ロボット・AI部
和文要約
英文要約Title: Research and Development Project for Advanced Aircraft Systems toward Practical Application/Research and Development of Next Generation Landing System (FY2015-FY2017) FY2016 Annual Report

[Research and Development of EHA System for Landing Gear Extension and Retraction System]
EHA System: Electric Hydrostatic Actuation System
(1) Improvement of Pump Torque Efficiency: To improve the pump torque efficiency, new pump has been developed. The pump torque efficiency has been verified to be improved to the target value.
(2) Vibration Modelling: Vibration modelling for EHA main actuator has been addressed. A correlation between model and test results has been made.
(3) Design of Electric Uplock: The architecture of electric uplock has been studied.
(4) Preparation of MBD (Model Based Definition): The environment for MBD has been established. The modelling method in compliance with RTCA DO-178C and V&V (Verification & Validation) process for the model have been established.

[Research and Development of Electric Taxiing System]
(1) Performed the In-wheel motor deign improvement and re-selected the motor type in order to increase output power and to decrease motor size.
(2) Performed the thermal simulation analysis and found the useful solution to decrease the heat generation.
(3) Conducted the simulation modeling and analysis for Taxiing and Shimmy Vibration, and set the preliminary control parameter.

[Research and Development of Electro-Magnetic Brake System]
(1) Research & study for Magneto-Rheological Fluid(MRF) for brake
a) Found that it may be possible to reduce off-state torque by surface treatment on magnetic particle.
b) MRF including bigger particle was made to increase on-state torque and the performance was confirmed by test.
(2) Study of cooling method of MR brake
Thermal analyses showed all candidates for cooling were not sufficient to avoid over heat.
(3) Study of application method of magnetic field to reduce resistant torque when brake is not used
Movement of MRF couldn't be confirmed through test.
(4) Preparation & evaluation of multiple-disk MR brake
a) Established rough design of brake. Preparation of trial disk was canceled.
b) By rough analysis, confirmed required torque can be generated.
c) Confirmed strength by rough analysis.
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