The Study on Loads on an Aircraft Piston Engine Continental Motors Iof-240-B5b in Training Flights

Grabowski, Łukasz; Czyż, Zbigniew; Porzak, Marcin

doi:10.3846/transport.2018.5467

Cited by 3 publications

(1 citation statement)

References 10 publications

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“…Measurement methods based on analysis of acoustic pressure changes at different locations in the blade profile were also used to study air vibrations on the rotor blade surface [19]. Loads acting on the aircraft powerplant and related with loads of the propeller blade are also investigated to develop a model of an aircraft flight envelope, which can contain data to determine the boundary conditions of this model [20].…”

Section: Methodsmentioning

confidence: 99%

Durability Analysis of the Prototype Test Rig for Main Rotors

Ścisłowski¹,

Skiba²,

Wendeker³

et al. 2022

Communications

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ResumeThis paper presents an analysis of the strength of a prototype test rig for testing rotors of unmanned aerial vehicles. Digital design software was used for the design work that covered the creation of a virtual model of the test rig and strength analysis of its key elements. The paper discusses the test rig solutions, applied to date, of the small main rotor research. From the assumed operational parameters and structural parameters of the rotor, the main forces acting on the designed structure were determined: lifting force, reaction torque and empty mass of the test rig. Suitable actuators of the control system enabling the regulation of the total pitch and periodic pitch of the rotor, within the full range of the angle of attack, were selected for the rotor under test. The FEM (Finite Element Method) strength analysis was carried out for the proposed support structure and the correctness of the design was verified.

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Section: Methodsmentioning

confidence: 99%

Durability Analysis of the Prototype Test Rig for Main Rotors

Ścisłowski¹,

Skiba²,

Wendeker³

et al. 2022

Communications

View full text Add to dashboard Cite

show abstract

Strength analysis of the conceptual model of a main rotor blade spar with actuators

Siadkowska

Borowiec

2021

J. Phys.: Conf. Ser.

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This paper concerns the conceptual design of a main rotor blade spar with actuators. A three-dimensional model of a main rotor blade is based on the preliminary geometric blade setting angle to increase the aerodynamic performance caused by different linear velocities of individual cross-sections. A modification of the blade setting angle results in a change of the angle of attack and influences the value of the lifting force in a given blade cross-section. The geometric setting angle was applied in designing both the main rotor blade spars and the blade. The overall dimensions of the blade depended on the available surface of the outmost blade airfoils. The important element of the designed spars was a cut in the form of a notch enabling the upper and lower crossbars of the designed spar to move during the operation of actuators. The FEM analysis was carried out on the parts of the designed blade spars. Three types of materials were compared in the finite element analysis. The internal stresses and displacements of the outmost edges of the crossbars were analyzed. The Catia V5 software was used for the designing work. The sections of the spars were analyzed using the Finite Element Method. The Pre/Post module of NX 12 was used for the FEM analysis. The displacement results were analyzed, which allowed us to determine their twist angle.

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CFD investigation of the main rotor for an unmanned helicopter

Królak¹,

Czyż²,

Siadkowska

et al. 2021

J. Phys.: Conf. Ser.

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The paper presents the CFD analysis of the main rotor of the unmanned helicopter model with a maximum take-off mass of up to 150 kg. The calculations were performed in ANSYS Fluent software. The results of the work are the relationship between the lift force generated by the main rotor as a function of the blade angle of attack. The results are presented for the three considered rotational speeds i.e. 1400, 1600, 1800 rpm. As the angles of the blades of attack increases, an increase in the rotor lift force, torque, and power requirement of the tested main rotor was observed. Additionally, the power required to drive a carrier rotor for the three speeds in question was calculated. Examined changes in the power requirement of the main rotor also showed a percentage increase when changing the α and increasing the rotational speed. The result based on the numerical calculations for three blades main rotor model were presented in tables and diagrams.

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The Study on Loads on an Aircraft Piston Engine Continental Motors Iof-240-B5b in Training Flights

Cited by 3 publications

References 10 publications

Durability Analysis of the Prototype Test Rig for Main Rotors

Durability Analysis of the Prototype Test Rig for Main Rotors

Strength analysis of the conceptual model of a main rotor blade spar with actuators

CFD investigation of the main rotor for an unmanned helicopter

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