Pugh Analysis for Configuration Selection of a Hybrid Buoyant Aircraft

2015 ◽  
Author(s):  
Anwar ul Haque ◽  
Waqar Asrar ◽  
Erwin Sulaeman ◽  
Ashraf Omar ◽  
Jaffar Syed Mohamed Ali
2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
João Antônio Dantas de Jesus Ferreira ◽  
Ney Rafael Secco

Purpose This paper aims to investigate the possibility of lowering the time taken during the aircraft design for unmanned aerial vehicles by using machine learning (ML) for the configuration selection phase. In this work, a database of unmanned aircraft is compiled and is proposed that decision tree classifiers (DTC) can understand the relations between mission and operational requirements and the resulting aircraft configuration. Design/methodology/approach This paper presents a ML-based approach to configuration selection of unmanned aircraft. Multiple DTC are built to predict the overall configuration. The classifiers are trained with a database of 118 unmanned aircraft with 57 characteristics, 47 of which are inputs for the classification problem, and 10 are the desired outputs, such as wing configuration or engine type. Findings This paper shows that DTC can be used for the configuration selection of unmanned aircraft with reasonable accuracy, understanding the connections between the different mission requirements and the culminating configuration. The framework is also capable of dealing with incomplete databases, maximizing the available knowledge. Originality/value This paper increases the computational usage for the aircraft design while retaining requirements’ traceability and increasing decision awareness.


2000 ◽  
Vol 12 (5) ◽  
pp. 527-533 ◽  
Author(s):  
Masanori Hariyama ◽  
Michitaka Kameyama

This paper presents a fast path planning method to find a feasible collision-free path. A collision-free path is searched for by iterations of selection of a robot configuration and collision detection for it. A most promising configuration is selected according to a minimum distance from every point in 3-D workspace and obstacles. The configuration selection keeps a robot as far away as possible from obstacles, and reduces the number of configurations for collision detection. Moreover, a highly-parallel processor based on logicin-memory architecture is proposed to overcome a transfer bottleneck between a memory and processing elements.


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