Turning flight simulation of tilt-rotor plane with fluid-rigid body interaction
Turning flight simulation of tilt-rotor plane with fluid-rigid body interaction
复制标题
流刚体相互作用倾转旋翼机转弯飞行仿真
DOI：
10.1299/jtst.2020jtst0021
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发表时间：
2020
影响因子：
1.2
通讯作者：
K. Tajiri
中科院分区：
文献类型：
--
作者：
Ayato Takii;M. Yamakawa;S. Asao;K. Tajiri
以V-22“鱼鹰”为代表，考虑流固耦合作用，进行了倾转旋翼机六自由度转弯飞行仿真。倾转旋翼飞行器通过在起飞或着陆期间将旋翼的轴线转向天空而具有像直升机一样的悬停功能。另一方面，它的行为就像一个往复式飞机通过转动轴的转子向前飞行。已知倾转旋翼飞行器与常规飞行器相比易受不稳定状态的影响。为了实现飞机转弯飞行的数字化飞行，采用了移动计算域（MCD）方法和多轴滑移网格相结合的方法。在MCD方法中，整个计算域本身与包含在域内的物体一起移动，这使得飞机可以在物理空间中自由飞行，而不受任何区域大小的限制。此外，该方法也适用于转子的旋转。多轴滑移网格方法是一种能够处理多个不同方向旋转轴的计算技术，用于旋转两个旋翼，改变飞行器的飞行姿态。采用上述方法进行流场与刚体耦合计算，通过旋翼旋转获得升力和推进力，通过操纵襟副翼、升降舵和方向舵等操纵面实现转弯飞行。此外，还得到了转弯飞行所需的操纵面操纵量、飞机的飞行姿态和产生的升力，以及直线飞行和转弯飞行时流体流动的差异。
Six degrees of freedom turning flight simulation is presented for a tilt-rotor aircraft represented by V-22 Osprey, considering interaction of fluid and rigid body in a coupled manner. A tilt-rotor aircraft has a hovering function like a helicopter by turning axes of rotor toward the sky during takeoff or landing. On the other hand, it behaves as a reciprocating aircraft by turning axes of rotor forward in flight. The tilt-rotor aircraft is known to be susceptible to instable state compared to conventional aircraft. For realizing Digital Flight of turning flight of the aircraft, combination with the Moving Computational Domain (MCD) method and the multi-axis sliding mesh approach is applied. In the MCD method, the whole of the computational domain itself moves with the bodies included inside the domain, which makes an airplane possible to fly freely in the physical space without any restriction of region size. Moreover, this method is also applied to rotation of rotors. The multi-axis sliding mesh approach is computational technique to enable us to deal with multiple rotating axes of different direction, and it is used to rotate two rotors and change flight attitude of the aircraft. As a result of the coupled computation between flow field and rigid body using above approach, the airplane gained lift and propulsion by rotating the rotor and flew in turning by operating flight control surfaces such as flaperons, elevator and rudders. Moreover, the manipulating variables of flight control surfaces needed for turning flight, flight attitude of the aircraft and generated lift were found. Differences of fluid flow between straight flight and turning flight were also captured.
影响因子：
4.1
作者：
ROE, PL
通讯作者：
ROE, PL