Abstract
The article deals with the modal analysis of a small aircraft propeller. In here are discussed the possible three cases of the Finite Element Method (FEM) simulation, in the environment of ANSYS Mechanical software. Successively each of them is described by the theoretical and application parts. Further on, there are explained the important results from the modal analysis, i.e., the calculated natural frequencies, mode shapes, participation factors and effective masses. The following three cases of the FEM simulation were used: the classic approach, the cyclic symmetry modelling and the Component Mode Synthesis (CMS) method. At the end the calculated frequencies of the all three cases are compared.
Highlights
The main aim of this article was to demonstrate the three ways how to perform modal analysis applying the Finite Element Method
The verification of the aircraft propeller dynamic behaviour in a fact is usually performed by the help of ground testing facilities, where the method of experimental modal analysis is used in most cases
The column II represents FE model of propeller, where part connection was provided through bonded contact
Summary
The main aim of this article was to demonstrate the three ways how to perform modal analysis applying the Finite Element Method. For this purpose, the ANSYS system was used in the customary extend. The ANSYS system was used in the customary extend These methods were applied on an aircraft propeller, in order to discover its interesting dynamic behaviour. The verification of the aircraft propeller dynamic behaviour in a fact is usually performed by the help of ground testing facilities, where the method of experimental modal analysis is used in most cases. R. Vysoký (Aeronautical Research and Testing Establishment, Prague) take advantage of French measuring instrument PRODERA
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