A Numerical Study on Active Control for Tiltrotor Whirl Flutter Stability Augmentation

Gourinat, Yves; Mueller, Joerg P.; Ferrer, Rogelio; Krysinski, Tomasz; Kerdreux, Benjamin

doi:10.4050/1.3092885

Cited by 10 publications

(6 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The solutions of such optimization problems were demonstrated in References [34,[202][203][204][205][206][207][208]. The similar analysis was carried out for the tiltrotor composite wings (complicated shapes of the blade)-References [209][210][211][212][213][214][215][216][217][218].…”

Section: Cross-section Parameters-variable (Stepped) Thicknessmentioning

confidence: 99%

Optimal Design of Plated/Shell Structures under Flutter Constraints—A Literature Review

2019

View full text Add to dashboard Cite

Aeroelastic optimization has become an indispensable component in the evaluation of divergence and flutter characteristics for plated/shell structures. The present paper intends to review the fundamental trends and dominant approaches in the optimal design of engineering constructions. A special attention is focused on the formulation of objective functions/functional and the definition of physical (material) variables, particularly in view of composite materials understood in the broader sense as not only multilayered laminates but also as sandwich structures, nanocomposites, functionally graded materials, and materials with piezoelectric actuators/sensors. Moreover, various original aspects of optimization problems of composite structures are demonstrated, discussed, and reviewed in depth.

show abstract

Section: Cross-section Parameters-variable (Stepped) Thicknessmentioning

confidence: 99%

Optimal Design of Plated/Shell Structures under Flutter Constraints—A Literature Review

2019

View full text Add to dashboard Cite

show abstract

“…A numerical simulation model including the rotor, the wing, and the nacelle was built using a general purpose multibody simulation tool to study active control technology for tilt-rotor aircraft whirl flutter stability augmentation [5]. A simplified aeroelastic tilt-rotor model was built to analyze the vertical bounce phenomenon [6].…”

Section: Introductionmentioning

confidence: 99%

“…In the above research on the flight control of the tilt-rotor aircraft, active control for the nacelle tilting is not found. An active control method has been developed for the control of the aeroelasticity and structural dynamics of a tilt-rotor [5]. Bernardini et al [13] proposed an active control strategy to the alleviation of tonal noise inside the hosting passenger area of a midrange tilt-rotor.…”

Section: Introductionmentioning

confidence: 99%

A Multibody Model of Tilt-Rotor Aircraft Based on Kane’s Method

et al. 2019

International Journal of Aerospace Engineering

View full text Add to dashboard Cite

A tilt-rotor aircraft can switch between two flight configurations (the helicopter configuration and the fixed-wing plane configuration) by tilting its rotors. In the process of rotor tilting, the nacelles which drive the rotors tilt together with the rotors. Because the mass of the nacelles cannot be ignored compared to the mass of the whole aircraft, the tilting of the nacelles is a coupling motion of the body and the nacelles. In order to better character the aircraft dynamics during the nacelle tilting, a multibody model is established in this paper. In this multibody model, Kane’s method is used to build a dynamic model of a tilt-rotor aircraft. The generalized rates are used to describe the movement of the body and the nacelles (with rotors). The generalized active forces and generalized inertial forces of both the body and the nacelles (with rotors) are obtained, respectively, and the first-order differential equations of the generalized rates are obtained. The longitudinal trim of the XV-15 aircraft is calculated according to the single-body model and our multibody model, in this paper, and the results verify the correctness of the multibody model. In the process of nacelle inclination angle command tracking, the multibody model can provide more information about the disturbance torque of the nacelle than the single-body model, and model inversion control based on the proposed multibody model can obtain a better tracking result than a PID control method only using nacelle angle feedback information.

show abstract

“…neural network-based feedback linearization, Rysdyc and Calise [5,6]); this is an active research field [7], in view of the innumerable promising applications of vertical take-off and landingcapable high-performance unmanned vehicles. Mueller et al [8] investigated the application of a simple single-input single-output control, compared to more sophisticated linear quadratic Gaussian and GPC control strategies, to the multibody model of a semi span tiltrotor configuration. Singh et al [9] investigated flutter suppression of a model of the XV-15 experimental tiltrotor aircraft based on a linear quadratic regulator, showing the robustness of the proposed scheme and its capability to control the aircraft stability observing only a minimal number of wing states.…”

Section: Introductionmentioning

confidence: 99%

Multibody simulation of a generalized predictive controller for tiltrotor active aeroelastic control

Mattaboni

Masarati

Mantegazza

2011

Proceedings of the Institution of Mechanical Engineers, Part G:

View full text Add to dashboard Cite

A generalized predictive control has been developed for the control of the aeroelasticity and structural dynamics of a tiltrotor. Adaptivity is the key feature of the proposed technique. It gives the controller the capability to autonomously follow the variations of the system. A comprehensive simulation system has been adopted to design and test the adaptive regulator under realistic conditions. The aeroservoelastic tiltrotor has been modelled using a multibody approach, considering the structural dynamics, the aerodynamics, the blade pitch control system kinematics, and actuator and sensor dynamics. Numerical simulations illustrate the capability of the adaptive controller to reduce wing vibrations and loads while significantly extending the flutter-free flight envelope. This controller shows satisfactory performances within the whole flight envelope as it is able to properly work in different rotor trim conditions and varying structural properties in the presence of external disturbances and measurement noise.

show abstract

A Numerical Study on Active Control for Tiltrotor Whirl Flutter Stability Augmentation

Cited by 10 publications

References 6 publications

Optimal Design of Plated/Shell Structures under Flutter Constraints—A Literature Review

Optimal Design of Plated/Shell Structures under Flutter Constraints—A Literature Review

A Multibody Model of Tilt-Rotor Aircraft Based on Kane’s Method

Multibody simulation of a generalized predictive controller for tiltrotor active aeroelastic control

Contact Info

Product

Resources

About