State-of-the-Art Finite Element Modeling of Rotorcraft Main Rotor Blade for Bird Strike Damage Analysis

2018 ◽  
Vol 18 (6) ◽  
pp. 1369-1378
Author(s):  
Vijaya Kumar Rayavarapu
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Rotor Blade ◽  
State Of The Art ◽  
Damage Analysis ◽  
Bird Strike ◽  
Main Rotor ◽  
Element Modeling ◽  
Main Rotor Blade

scholarly journals Recent Experiences of Helicopter Main Rotor Blade Damage

2019 ◽  
Vol 64 (3) ◽  
pp. 1-5
Author(s):  
Simone Weber ◽  
Mudassir Lone ◽  
Alastair Cooke
Keyword(s):  
Health Monitoring ◽  
Rotor Blade ◽  
State Of The Art ◽  
Decision Making Process ◽  
Operational Experience ◽  
Main Rotor ◽  
Reactive Strategy ◽  
Helicopter Main Rotor ◽  
Main Rotor Blade ◽  
Preventative Approach

Results of a survey investigating commonly occurring minor rotor blade damage incidents are presented in this paper. Over 100 participants worldwide ranging from test pilots to commercial pilots and licensed engineers answered the survey. The focus of this work was to provide a user-oriented context that can inform the decision-making process for integrating state-of-the-art instrumentation systems for rotor blade health monitoring onboard operational helicopters. This paper highlights the dichotomy faced by designers who have a choice to follow either a reactive strategy based on operational experience or a preventative approach based on technological trends.

State-of-the-art in nonlinear finite element modeling of isolated planar reinforced concrete walls

2019 ◽  
Vol 194 ◽  
pp. 46-65 ◽  
Author(s):  
Kristijan Kolozvari ◽  
Lauren Biscombe ◽  
Farhad Dashti ◽  
Rajesh P. Dhakal ◽  
Aysegul Gogus ◽  
...  
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Finite Element Modeling ◽  
State Of The Art ◽  
Nonlinear Finite Element ◽  
Concrete Walls ◽  
Element Modeling ◽  
Reinforced Concrete Walls

scholarly journals Finite element modeling of wing bird strike

2015 ◽  
Vol 43 (1) ◽  
pp. 76-81 ◽  
Author(s):  
Marinko Ugrcic ◽  
Stevan Maksimovic ◽  
Dragi Stamenkovic ◽  
Katarina Maksimovic ◽  
Khettou Nabil
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Bird Strike ◽  
Element Modeling

Advanced Finite Element Modeling of Rotor Blade Aeroelasticity

1994 ◽  
Vol 39 (2) ◽  
pp. 56-68 ◽  
Author(s):  
F. K. Straub ◽  
K. B. Sangha ◽  
B. Panda
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Rotor Blade ◽  
Element Modeling

scholarly journals Main rotor blade modeling approaches comparison. Finite element and Craig-Bampton methods

2021 ◽  
Vol 2131 (3) ◽  
pp. 032096
Author(s):  
V Borisenko ◽  
J Leoro ◽  
A Didenko
Keyword(s):  
Finite Element ◽  
Rotor Blade ◽  
Element Model ◽  
Fe Model ◽  
Main Rotor ◽  
Linear Elastic ◽  
External Conditions ◽  
The One ◽  
Helicopter Main Rotor ◽  
Main Rotor Blade

Abstract The paper focuses on the helicopter main rotor blade FE model. And the main goal is to prove the feasibility of the helicopter main rotor MBD model in calculations of blade deformation as a result of applied aerodynamic forces. FE model is used as a basis for two different computational methods. A mathematical approach in the MBD based on the Craig-Bampton method on the one hand. And finite element model on the other hand. The results of high-frequency blade rotations are obtained. Calculations of these models are compared in order to determine the best method for modeling a linear-elastic blade. By the results, it is necessary to consider the preloaded state of the blade when using the Craig-Bampton method approach. The comparison of blade nodes displacements at various external conditions for both models are given. The influence of rotor MBS model damping parameters on the amplitude of blade oscillations under sinusoidal action is considered.

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