• Title, Summary, Keyword: Propeller design

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Aerodynamic Design and Analysis on 1600kW Class Propeller Blade (1600kW급 프로펠러 블레이드 공력설계 및 해석)

  • Choi, Won;Kim, Kwang-Hae;Won, Young-Su;Lee, Won-Joong
    • The KSFM Journal of Fluid Machinery
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    • v.15 no.3
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    • pp.19-24
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    • 2012
  • Propeller shall have high efficiency and improved aerodynamic characteristics to get the thrust to fly at high speed for the turboprop aircraft. That is way Clark-Y airfoil which is used to conventional 1600kW class aircraft propeller is selected as a blade airfoil. Adkins method is used for aerodynamic design and performance analysis with respect to the propeller design point. Adkins method is based on the vortex-blade element theory which design the propeller to satisfy the condition for minimum energy loss. propeller geometry is generated by varying chord length and pitch angle at design point of turboprop aircraft. The propeller design results indicate that is evaluated to be properly constructed, through analysis of propeller aerodynamic characteristics using the Meshless method and MRF, SM method.

Aerodynamic Design and Analysis of a Propeller for a Micro Air Vehicle

  • Cho Lee-Sang;Yoon Jae-Min;Han Cheol-Heui;Cho Jin-Soo
    • Journal of Mechanical Science and Technology
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    • v.20 no.10
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    • pp.1753-1764
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    • 2006
  • A U-80 propeller and its modified version, U-75 propeller, are used for a micro air vehicle. The performance characteristics of a U-80 propeller and a U-75 propeller have not much known in the published literature. Thus, their aerodynamic characteristics are investigated using a lifting surface numerical method. The lifting surface method is validated by comparing computed results with measured data in a wind tunnel. From the computed results, it is found that the U-75 propeller produces larger thrust with higher efficiency than the U-80 propeller. To enhance the performance of these propellers, a new propeller is designed by following the sequential design procedures with the design parameters such as hub-tip ratio, maximum camber and its position, and chord length distribution along the radial direction. The performance of the designed propeller is shown to be improved much comparing with those of both the U-80 and U-75 propellers.

Design of Propeller Geometry Using Blade Sections Adapted to Surface Streamlines (표면 유선에 정렬된 날개 단면을 이용한 프로펠러 형상 설계)

  • Kim, Yoo-Chul;Kim, Tae-Wan;Suh, Jung-Chun
    • Journal of the Society of Naval Architects of Korea
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    • v.43 no.4
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    • pp.440-450
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    • 2006
  • In this paper, we suggest a design concept of defining the propeller geometry by stacking up the blade sections aligned with propeller surface streamlines. Numerical and experimental propeller open water(P.O.W.) characteristics of a newly designed propeller are presented. The surface streamlines for a propeller are obtained by using the panel method. Redefinition of the blade sections aligned with the streamlines is provided together with 8-spline modeling, by which we manufacture model propellers. We carried out the P.O.W, tests in a towing tank in order to show the effect of the present method on P.O.W. characteristics.

Systematic probabilistic design methodology for simultaneously optimizing the ship hull-propeller system

  • Esmailian, Ehsan;Ghassemi, Hassan;Zakerdoost, Hassan
    • International Journal of Naval Architecture and Ocean Engineering
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    • v.9 no.3
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    • pp.246-255
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    • 2017
  • The proposed design methodology represents a new approach to optimize the propeller-hull system simultaneously. In this paper, two objective functions are considered, the first objective function is Lifetime Fuel Consumption (LFC) and the other one is cost function including thrust, torque, open water and skew efficiencies. The variables of the propeller geometries (Z, EAR, P/D and D) and ship hull parameters (L/B, B/T, T and $C_B$) are considered to be optimized with cavitation, blades stress of propeller. The well-known evolutionary algorithm based on NSGA-II is employed to optimize a multi-objective problem, where the main propeller and hull dimensions are considered as design variables. The results are presented for a series 60 ship with B-series propeller. The results showed that the proposed method is an appropriate and effective approach for simultaneously propeller-hull system design and is able to minimize both of the objective functions significantly.

Design of optimum propeller for target drone II (무인 표적기 프로펠러의 최적 설계 II)

  • 성형건;노태성
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • pp.246-249
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    • 2003
  • The propeller of the propulsion system for a target drone has been designed. Vortex theory has been applied to the propeller design method. This method analyze the propeller performance according to the design parameters. The optimum design has been aimed to maximize the efficiency. The performance of the designed propeller has been analyzed.

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CFD Analysis of Aerodynamic Characteristics of Regional Turboprop Aircraft Propeller (중형 터보프롭 항공기급 프로펠러 공력특성 전산해석)

  • Choi, W.;Choi, J.S.;Jung, I.M.;Kim, J.H.;Lee, I.W.;Han, S.H.;Won, Y.S.
    • 한국전산유체공학회:학술대회논문집
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    • pp.447-452
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    • 2011
  • Propeller shall have high efficiency and improved aerodynamic characteristics to get the thru5t to fly at high speed for the Regional turboprop aircraft. That is way Clark-Y airfoil which is used to conventional turboprop aircraft propeller is selected as a blade airfoil. Adkins method is used for aerodynamic design and performance analysis with respect to the propeller design point. Adkins method is based on the vortex-blade element theory which design the propeller to satisfy the condition for minimum energy loss. propeller geometry is generated by varying chord length and pitch angle at design point of Regional turboprop aircraft. The propeller design results indicate that is evaluated to be properly constructed, through analysis of propeller aerodynamic characteristics using the Meshless method and MRF, SM method.

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Development of Internet-Based Marine Propeller Design and Analysis System (인터넷 기반 선박용 프로펠러 설계 및 해석 시스템 개발)

  • Jang, Hyun-Gil;Ahn, Byoung-Kwon;Moon, Il-Sung;Lee, Chang-Sup
    • Journal of Ocean Engineering and Technology
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    • v.24 no.4
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    • pp.66-71
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    • 2010
  • Numerical prediction of propeller performance plays an important role in a marine propeller design process. Program developers are consistently trying to improve diminish predicted errors, and program users need to keep up with the latest ones with minimum expenditure of time and money. We have developed an internet based design system in which clients can design propellers with remote access. In this paper, optimized Internet based Propeller Design and Analysis System (iProDAS) for transferences of the massive data is presented, and a sample design using iProDAS is examined.

Propeller Performance Analysis for Human Powered Aircraft (인간동력 항공기용 프로펠러 성능해석)

  • Park, Poo-Min
    • Aerospace Engineering and Technology
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    • v.12 no.2
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    • pp.193-201
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    • 2013
  • Propeller is an important component of Human Powered Aircraft (HPA) propulsion system. HPA uses large diameter low rotational speed propeller to get high propeller efficiency. The propeller was designed by HPA propeller designing program. The propeller pitch is adjustable by rotating the blade axis angle at ground. Performance of the propeller for various parameters are analysed by the same program used for design. Off-design condition performance was also checked including pilot power change and flight speed change. The propeller was manufactured in ultra-light structure using carbon composite material down to 950g. The propeller was ground tested on ironbird and installed on KARI HPA. Finally the HPA flew 291m with this propeller.

Design of Propulsion Shafting System for Controllable Pitch Propeller (I : Latout Design with Sizing) (가변추진기 추진축계시스템의 설계 (제 I 보 : 외형설계 ))

  • 김기인;전효중;박명규;김정렬
    • Proceedings of the Korean Society of Marine Engineers Conference
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    • pp.129-134
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    • 2002
  • This study is focused on the layout design with sizing for the main propulsion shafting with controllable pitch propeller system. For appropriate design and successful manufacturing of controllable pitch Propeller system, it is based on specifications to be required from the customer as well as the stresses calculation and analysis of main propulsion system for hollow shafting. And it must be performed according to the U.S military specifications MIL-STD-2189(SH) with drawing of NAVSHIPS 803-2145807, and also the stress analysis by applying safety factor. The results are as follows : 1. For the main propulsion system with controllable pitch propeller, it is designed the following items propeller diameter, hub diameter, dimensions of oil distribution or actuating unit based on shaft mounting type, diameters of propeller and intermediate shaft, dimension of split muff coupling, coupling flange thickness and of coupling bolt diameter. 2. As the results, we can get complete our own design ability for the main propulsion shafting with controllable pitch propeller system with critical data which are necessary to establish shafting arrangement from the ship building companies.

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The AUV design based on component modeling and simulation

  • Kebriaee, Azadeh;Nasiri, Hamidreza
    • Ocean Systems Engineering
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    • v.2 no.2
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    • pp.83-97
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    • 2012
  • In the present work, design procedure and computer simulation of an AUV are documented briefly. The design procedure containing the design of propulsion system and CFD simulation of hydrodynamics behavior of the hull leads to achieve an optimum mechanical performance of AUV system. After designing, a comprehensive one dimensional model including motor, propeller, and AUV hull behavior simulates the whole dynamics of AUV system. In this design, to select the optimum AUV hull, several noses and tails are examined by CFD tools and the brushless motor is selected based on the first order model of DC electrical motor. By calculating thrust and velocity in functional point, OpenProp as a tool to select the optimum propeller is applied and the characteristics of appropriate propeller are determined. Finally, a computer program is developed to simulate the interaction between different components of AUV. The simulation leads to determine the initial acceleration, final velocity, and angular velocity of electrical motor and propeller. Results show the final AUV performance point is in the maximum efficiency regions of DC electrical motor and propeller.