Modular Tooling Concept in the Fabrication of the Precision AUV Blade

2013 ◽  
Vol 372 ◽  
pp. 369-372
Author(s):  
A.B. Abdullah ◽  
Samad Zahurin ◽  
H.M.T. Khaleed ◽  
M. Husaini
Keyword(s):  
Conceptual Design ◽  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle ◽  
Acceptable Level ◽  
Cold Forging ◽  
Modular Approach ◽  
Propeller Blade ◽  
Design And Optimization ◽  
Process Sequence

Tooling plays important role in ensuring precision of cold forging part. In this study, a modular approach was proposed in the design of the tooling in the production of Autonomous Underwater Vehicle (AUV) propeller blade. Based on the conceptual design and optimization of the process sequence, the tooling was designed. As a result, the precision of the forged blade is still within the acceptable level.

scholarly journals Design And Optimization Of Compensation Of A Separate Core Transformer Used To Recharge The Battery Of An Autonomous Underwater Vehicle

2014 ◽  
Vol 19 (1) ◽  
pp. 98-110
Author(s):  
Israel Filipe Lopes ◽  
Rodolfo Lacerda Valle ◽  
Pedro Gomes Barbosa ◽  
Leonardo de Mello Honório ◽  
Nuno Alexandre Cruz ◽  
...  
Keyword(s):  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle ◽  
Design And Optimization

A synergetic approach to the conceptual design of Autonomous Underwater Vehicle

2015 ◽  
Vol 67 ◽  
pp. 105-114 ◽  
Author(s):  
M. Senthil Kumar ◽  
S. Chidambara Raja ◽  
M.N. Sarath Kumar ◽  
B. Gowthamraj ◽  
R. Ramesh Raja
Keyword(s):  
Conceptual Design ◽  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle

Design and CFD Self-Propulsion Analysis of a Ducted Propeller for a DARPA SUBOFF Hull Autonomous Underwater Vehicle

2020 ◽  
Author(s):  
Ricardo Sbragio ◽  
Alceu Jose dos Santos Moura ◽  
Rubens Cavalcante da Silva
Keyword(s):  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle ◽  
Viscous Effects ◽  
Ansys Fluent ◽  
Design And Optimization ◽  
Ducted Propeller ◽  
Kriging Metamodel ◽  
Line Theory ◽  
Line Design ◽  
Lifting Line

Abstract This paper presents the design and the CFD self-propulsion analysis of a ducted propeller to operate in a DARPA SUBOFF hull Autonomous Underwater Vehicle (AUV). The ducted propeller is of the pump jet type with 9 blades at the rotor and 11 blades at the stator. The interactive process of design and optimization uses the potential lifting line theory and CFD RANS analysis for obtaining the self-propulsion point, with the propeller placed behind the AUV hull. During the lifting line design, the rotor diameter, hub diameter, design rotation, blade section chord and length of the duct are modeled by a Kriging Metamodel technique and optimized through random sampling in order to maximize the quasi propulsive coefficient. The optimized configuration from the lifting line and Kriging Metamodel is analyzed using Ansys Fluent 2019 solver. The CFD analysis behind the hull allows including wake effects, thrust deduction factor and viscous effects directly into the model. The lifting line and CFD processes are used interactively to optimize the pitch, the circulation and the camber until the required thrust is achieved.

scholarly journals Twist Springback Measurement of AUV Propeller Blade Based on Profile Deviation

2012 ◽  
Vol 512-515 ◽  
pp. 1840-1844 ◽  
Author(s):  
A.B. Abdullah ◽  
S.M. Sapuan ◽  
Z. Samad ◽  
M.T. Khaleed ◽  
M. Husaini ◽  
...  
Keyword(s):  
Autonomous Underwater Vehicle ◽  
Twist Angle ◽  
Underwater Vehicle ◽  
Optical Technique ◽  
Propeller Blade ◽  
Geometrical Error ◽  
Profile Deviation ◽  
Complex Part ◽  
Twist Springback ◽  
Strong Agreement

Geometrical error due to twist springback is one of major defects found in the near net or net shape part. It becomes more critical for complex part such as an Autonomous Underwater Vehicle (AUV) propeller blade. In this study, twist springback was quantified by comparing the blade and the die profiles obtained from commercial optical technique namely Alicona system. The results show a different pattern, where the twist springback becomes larger as the twist angle increases moving to the tip. The results show a strong agreement with the experiment.

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