Test bench for helicopter electro mechanical actuation system validation: Design and validation of dedicated test bench for aeronautical electromechanical actuators

Echevarria, Imanol; Lasa, Joseba; Casado, Pablo; Domínguez, Alberto Moreno; Eguizabal, Inigo; Lizeaga, Mikel; Pérez, Ricardo Hernández; Berenguer, Oscar

doi:10.1109/icit.2015.7125151

Cited by 6 publications

(5 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared to the systems that use a consolidated drop [4] or electric motors to form an impact load [5,6], the proposed solution has no significant limitations on the amplitude of impact acceleration. In the proposed shock system prototype, the acceleration amplitude is limited by the specifications of the charge chamber (the volume, wall material, working liquid) and the stroke of the rod during charging (1).…”

Section: Discussion Of the Study Results And Recommendations On The Application Of The Proposed Shock Test System Prototypementioning

confidence: 99%

“…More controlled is the process of generating a recurring dynamic load on an article using electric motors. This approach is considered in work [5], which proposes to create a dynamic load on the product by mechanically connecting two induction motors on a common shaft.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Paper [6] reports the results of studying a laboratory bench for the testing of electromechanical transmissions. Similarly to work [5], the forcing is generated by electric motors but the speed of their rotation is controlled by a neural network algorithm.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…The general drawbacks of the test systems, which use induction motors for the immediate formation of impact load, are the low speed and complexity of a rapid change in the shape of pulses. In addition, the issue of structural limitation on the amplitude of impact acceleration remains unresolved in works [5,6]. Since significant impact accelerations lead to the destruction of the mechanical part of electric machines, such solutions have only a limited, highly specialized application.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 3 more Smart Citations

Designing a shock test system prototype based on a hydroelastic drive

Sheremet

Kiriienko

Besh

et al. 2021

EEJET

View full text Add to dashboard Cite

Laboratory shock tests involve the reproduction of simple one-time and repeated pulses of a certain waveform. In practice, such mechanical impacts on an object are implemented at specialized testing equipment ‒ shock systems. A promising direction in the development of shock machines includes the structures that operate on the energy of elastic deformation of the compressed liquid and the shell of the vessel that contains it. Such systems make it possible to improve the versatility, manageability, and accuracy of impact tests. Underlying this study is the use of a hydroelastic drive to design a prototype of the automated electro-hydraulic system for a shock test system. The proposed shock test system prototype makes it possible to expand the functionality of the installations to perform impact tests with a series of pulses, as well as improve manageability and increase the level of automation. The main feature of the proposed structural scheme is that the reconfiguration for a new impact pulse occurs very quickly. Owing to the presence of a driven rotary drum with braking devices, the bench makes it possible to generate a shock pulse repetition frequency of 1‒2 Hz. The constructed mathematical model of the shock machine takes into consideration the inertia of moving masses, the rigidity of the liquid or "one-way" spring of the charging chamber, as well as the influence of dampers on which the test platform rests. The variables in the mathematical model are linked by differential equations describing two periods within a shock system work cycle: charging and pulse generation. The model's practical value is to determine the dynamic characteristics of the test installation, as well as to calculate the required structural and technological parameters. The differential equations describing the movements at the shock machine have been solved in a numerical way. The study results have established the optimal value (in terms of minimizing the overload on an article on the return stroke of the rod) for the damping factor of the braking device, which is 13,000 kg/s. In this setting, the ratio of the amplitude of acceleration on the reverse stroke to the amplitude of effective acceleration during tests is reduced to a minimum of 0.195

show abstract

Section: Discussion Of the Study Results And Recommendations On The Application Of The Proposed Shock Test System Prototypementioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 2 more Smart Citations

Designing a shock test system prototype based on a hydroelastic drive

Sheremet

Kiriienko

Besh

et al. 2021

EEJET

View full text Add to dashboard Cite

show abstract

“…Traditionally, helicopter actuators have mainly been pneumatic actuators [1]. However, in recent years, the focus of the industry has shifted more towards electro-hydraulic and electro-mechanical actuators.…”

Section: Introductionmentioning

confidence: 99%

Design of electro-mechanical actuator for medium sized helicopter and a test platform for its testing and verification

Tanasković

Ristanović

Stojanović

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

Abstract. This paper presents the design of an electro-mechanical actuator that is used for actuation of a medium sized helicopter. The designed actuator consists of a commercially available electro-mechanical cylinder EMC40 from Rexroth Bosch and a brushless DC motor EC45 from maxon motor. Cylinder and the motor are connected by a custom-made gearbox, which allows for their parallel axial mount. In addition to the actuator, the paper describes a test platform that can be used to emulate the forces generated by an actual helicopter. Designed test platform consists of a torsional spring and an AC motor with excentre. Frequency regulator is used to achieve the desired frequency of the force. Experimental results obtained by testing the designed actuator on the test platform are also given in the paper.

show abstract