Active vibration control of a full scale aircraft wing using a reconfigurable controller

Prakash, Surya; Kumar, T G Renjith; Raja, S.; Dwarakanathan, D; Subramani, H.; Karthikeyan, C.

doi:10.1016/j.jsv.2015.09.010

Cited by 33 publications

(9 citation statements)

References 18 publications

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“…While structural modifications can enhance stability, the wing can also be equipped with sensors and actuators to control the vibrations [28]. MBDyn can support such an analysis through its control elements.…”

Section: Vibration Controlmentioning

confidence: 99%

Aeroelastic Response of Aircraft Wings to External Store Separation Using Flexible Multibody Dynamics

Tamer

2021

Machines

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In aviation, using external stores under the wings is a common method of carrying payload or fuel. In some cases, the payload can be rigidly attached to the wing. However, stores must often be ejected during flight for aircraft, such as military type, which carry drop tanks and missiles. This may cause the wing to respond dynamically with increasing amplitudes, due to the impulsive load of ejection and the change of total mass. This is especially critical in aircraft with highly flexible wings, such as those with high aspect ratios. In this case, it is crucial to evaluate the wing response to store separation, which requires a suitable simulation environment that is able to support nonlinear and multidisciplinary analysis. To address such a need, this work presents the use of flexible multibody dynamics in the simulation of wing response to store separation. To demonstrate, a highly compliant wing was selected with a rigid body that was mounted on the wing to represent an external store. The time marching simulation of the wing before and after the store separation was presented to show the features and benefits of the method.

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Section: Vibration Controlmentioning

confidence: 99%

Aeroelastic Response of Aircraft Wings to External Store Separation Using Flexible Multibody Dynamics

Tamer

2021

Machines

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“…In this paper, a two-stage gearbox is taken as the controlled object, and there is two gear meshing excitation in the system. To achieve global vibration suppression of the system, multiple sensors are needed to capture the dynamic vibration of the structure and multiple actuators to suppress the energy generated by excitation [41][42][43]. erefore, this paper will adopt a multichannel control method [44,45] to control the vibration of the two-stage gear transmission system actively.…”

Section: Introductionmentioning

confidence: 99%

Application of Multichannel Active Vibration Control in a Multistage Gear Transmission System

Zhang

Sun

Liu

et al. 2022

Shock and Vibration

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Gears are the most important parts of rotating machinery and power transmission devices. When gears are engaged in meshing transmission, vibration will occur due to factors such as gear machining errors, meshing rigidity, and meshing impact. The traditional FxLMS algorithm, as a common active vibration algorithm, has been widely studied and applied in gear transmission system active vibration control in recent years. However, it is difficult to achieve good performance in convergence speed and convergence precision at the same time. This paper proposes a variable-step-size multichannel FxLMS algorithm based on the sampling function, which accelerates the convergence speed in the initial stage of iteration, improves the convergence accuracy in the steady-state adaptive stage, and makes the modified algorithm more robust. Simulations verify the effectiveness of the algorithm. An experimental platform for active vibration control of the secondary gear transmission system is built. A piezoelectric actuator is installed on an additional gear shaft to form an active structure and equipped with a signal acquisition system and a control system; the proposed variable-step-size multichannel FxLMS algorithm is experimentally verified. The experimental results show that the proposed multichannel variable-step-size FxLMS algorithm has more accurate convergence accuracy than the traditional FxLMS algorithm, and the convergence accuracy can be increased up to 123%.

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“…The expected number of cycles to complete the failure is decreased, confirming that the fastening ears must be designed using the safety approach [20]. A reconfigurable active vibration control (AVC) system is known [21,22].…”

Section: Introductionmentioning

confidence: 99%

New Command Mechanism of Flaps and Wings of a Light Sport Aircraft

et al. 2021

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Commercial aircraft have well-designed and optimized systems, the result of a huge experience in the field, due to the large fleet of aircraft in operation. For light, utility, or sports aircraft, with a multitude of shapes, tasks, and construction types, there are different solutions that seek to best meet the requirements of the designed aircraft. In this sense, for a sport plane, an increased maneuverability is desired, and the system that controls flaps and wing must be properly designed. A new flap mechanism command solution is proposed and justified in the paper, for use in sports and recreational aviation, in order to achieve angles of braking greater than 40°, take-off and landing in a shorter time and over a shorter distance, as well as the gliding of the aircraft in critical flight conditions or when fuel economy is needed. A finite element model is used to verify the optimized command system for the flap and wing and to check if the strength structure of the aircraft is properly designed. The main result consists of the new design command system for flaps and wings and in verifying, by calculation, the acceptability of the new mechanism proposed from the point of view of the strength of the materials.

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Active vibration control of a full scale aircraft wing using a reconfigurable controller

Cited by 33 publications

References 18 publications

Aeroelastic Response of Aircraft Wings to External Store Separation Using Flexible Multibody Dynamics

Aeroelastic Response of Aircraft Wings to External Store Separation Using Flexible Multibody Dynamics

Application of Multichannel Active Vibration Control in a Multistage Gear Transmission System

New Command Mechanism of Flaps and Wings of a Light Sport Aircraft

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