The invention discloses an evtol tilt rotor aerodynamic noise wind tunnel test method, and belongs to the technical field of wind tunnel tests. In order to establish an evtol tilt rotor aerodynamic noise wind tunnel test method, the method comprises the following steps: carrying out a hovering empty propeller hub background noise test: rotating a rotor table, enabling the axis of a rotor to be perpendicular to the axis of a wind tunnel, carrying out an empty propeller hub aerodynamic and noise test, and then carrying out aerodynamic data acquisition and noise data acquisition at each rotating speed to obtain hovering empty propeller hub background noise data; performing a tilt rotor hovering noise test: installing blades, setting a rotor axis to be perpendicular to a wind tunnel axis, then performing pneumatic data acquisition and noise data acquisition at each total pitch and rotating speed, and correcting the obtained tilt rotor hovering noise data by using hovering empty propeller hub background noise data to obtain a tilt rotor hovering noise test result; obtaining static tension and static power under each total pitch and rotating speed of tilt rotor hovering; carrying out a transition state and axial flow forward flight empty propeller hub noise characteristic test; and carrying out a transition state and axial flow forward flight tilt rotor noise characteristic test.
一种evtol倾转旋翼气动噪声风洞试验方法,属于风洞试验技术领域。为建立evtol倾转旋翼气动噪声风洞试验方法,本发明包括进行悬停空桨毂背景噪声测试:转动旋翼台,使旋翼轴线与风洞轴线垂直,进行空桨毂气动及噪声试验,然后在各转速下进行气动数据采集和噪声数据采集,得到悬停空桨毂背景噪声数据;进行倾转旋翼悬停噪声测试:安装桨叶,设置旋翼轴线与风洞轴线垂直,然后在各总距和转速进行气动数据采集和噪声数据采集,得到倾转旋翼悬停噪声数据用悬停空桨毂背景噪声数据进行修正,得到倾转旋翼悬停各总距和转速下的静拉力和静功率;进行过渡态及轴流前飞空桨毂噪声特性试验:进行过渡态及轴流前飞倾转旋翼噪声特性试验。
Wind tunnel test method for aerodynamic noise of evtol tilt rotor
一种evtol倾转旋翼气动噪声风洞试验方法
2025-02-25
Patent
Electronic Resource
Chinese
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
Aerodynamic interference test of quad tilt rotor aircraft in wind tunnel
SAGE Publications | 2019
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