FORWARD FLIGHT TRIM AND FREQUENCY-RESPONSE VALIDATION OF A HELICOPTER SIMULATION-MODEL

被引：21

作者：

KIM, FD

CELI, R

TISCHLER, MB

机构：

[1] University of Maryland, Center for Rotorcraft Education and Research, Department of Aerospace Engineering, College Park, MD

[2] NASA Ames Research Center, Moffett Field, CA

[3] Aerospace Engineer, NASA Ames Research Center

[4] Center for Rotorcraft Education and Research, Department of Aerospace Engineering

来源：

JOURNAL OF AIRCRAFT | 1993年 / 30卷 / 06期

关键词：

D O I：

10.2514/3.46427

中图分类号：

V [航空、航天];

学科分类号：

08 [工学]; 0825 [航空宇航科学与技术];

摘要：

This article describes a new trim procedure that includes the calculation of the steady-state response of the rotor blades and is applicable to straight flight and steady coordinated turns. This article also describes the results of a validation study for a high-order linearized model of helicopter flight dynamics that includes rotor, inflow, and actuator dynamics. The model is obtained by numerical perturbations of a nonlinear, blade element-type mathematical model. Predicted responses are compared with flight test data for two values of airspeed. The comparison is carried out in the frequency domain. Numerical simulations and comparisons with flight test data show that the trim algorithm is accurate and preserve the periodicity of the aircraft states. The results also indicate that the predictions of the on-axis frequency response are overall in good agreement with flight test data, especially at medium and high frequencies.

引用

页码：854 / 863

页数：10

共 22 条

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[2]

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[3]

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[4]

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[5]

Howlett J.J., UH-60A Black Hawk Engineering Simulation Program-Volume Ii-Background Report, (1981)

[6]

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[7]

Peters D.A., Chouchane M., Fulton M., Helicopter Trim with Flap-Lag-Torsion and Stall by an Optimized Controller, Journal of Guidance, Control, and Dynamics, 13, 5, pp. 824-834, (1990)

[8]

Peters D.A., Izadpanah A., Helicopter Trim by Periodic Shooting with Newton-Raphson Iteration, (1981)

[9]

Chen R.T.N., Jeske J.A., Kinematic Properties of the Helicopter in Coordinated Turns, (1981)

[10]

Celi R., Hingeless Rotor Dynamics in Coordinated Turns, Journal of the American Helicopter Society, 36, 4, pp. 39-47, (1991)

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