A review of the bird impact process and validation of the SPH impact model for aircraft structures

2022 ◽  
Vol 129 ◽  
pp. 100787
Author(s):  
M. Guida ◽  
F. Marulo ◽  
F.Z. Belkhelfa ◽  
P. Russo
Keyword(s):  
Impact Model ◽  
Aircraft Structures ◽  
Impact Process ◽  
Bird Impact

scholarly journals Verification and application of bird strike analysis for the design of high-speed helicopter composite cowlings

2021 ◽  
Vol 349 ◽  
pp. 04011
Author(s):  
Radek Doubrava ◽  
Martin Oberthor ◽  
Petr Bělský ◽  
Bohuslav Cabrnoch
Keyword(s):  
Numerical Simulation ◽  
High Speed ◽  
Direct Method ◽  
Bird Strike ◽  
Aircraft Structures ◽  
Important Phenomenon ◽  
Impact Experiment ◽  
Bird Impact ◽  
Impact Experiments ◽  
A Direct Method

Bird strikes are an important phenomenon that must be taken into consideration when designing aircraft. A bird impact experiment provides a direct method to examine the bird strike resistance. However, the design of the aircraft structures usually involves many iterations of design-manufacturing-test and conducting bird impact experiments is not only time consuming but also costly. The aim of this work is to show the application of test verified numerical simulation for the design of composite cowlings of the high-speed helicopter.

Establishment and Application of an Equivalent Impact Model of Coupler in Front of Subway Locomotive

2012 ◽  
Vol 251 ◽  
pp. 36-41
Author(s):  
Jin Cui ◽  
Le Le Zhang ◽  
Yong Feng Tian ◽  
Xiao Yu Zhang
Keyword(s):  
Energy Absorption ◽  
Relative Energy ◽  
Operating Conditions ◽  
Equivalent Model ◽  
Impact Model ◽  
Design Standards ◽  
Impact Process ◽  
Impact Simulation ◽  
Simulation Process ◽  
Absorb Impact Energy

Coupler’s energy absorption part is made up of elastic buffer and crushing tube. Elastic buffer is used to absorb impact energy produced from locomotive’s normal running process while the crushing tube is used to absorb the ones produced from accidental impact process. It is one of key problems to solve in locomotive’s impact simulation process that to establish and manage the coupler’s equivalent model. The article simulates coupler’s absorbing of energy in impact process at two operating conditions. According to the relative energy absorption design standards, the article evaluates the correctness of the established coupler’s equivalent model. The simulation result indicates that the established coupler’s equivalent model satisfies the design requests.

Active and Semi-Active Vibration Control on Aircraft Structures

2021 ◽  
Author(s):  
Nikolaos Chrysohoidis ◽  
Grigoris Chatziathanasiou ◽  
Georgopoulos Kostas ◽  
Dimitrios A. Saravanos
Keyword(s):  
Vibration Control ◽  
Active Vibration Control ◽  
Aircraft Structures ◽  
Active Vibration
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