The Application of Advanced Composite Material in Tail Driver Shaft of the Helicopter

2011 ◽  
Vol 86 ◽  
pp. 365-369
Author(s):  
Ke Feng Li ◽  
Tian Hui Xia
Keyword(s):  
Composite Material ◽  
Critical Speed ◽  
Erosion Resistance ◽  
High Reliability ◽  
High Strength ◽  
Light Weight ◽  
Advanced Composite ◽  
Dynamic Performances ◽  
Long Life ◽  
Elasticity Characteristics

The helicopter tail drive shafts are designed by using aluminum alloy conventionally. The composite materials have the advantages of high strength ratio, good fatigue and erosion resistance. It can reduce weight 10%~30% than metal, and improve the pneumatic elasticity characteristics and flight performances of helicopter. This cannot be realized by using other materials. The design of the tail driver shaft has used composite material, so the advantages of light weight, good dynamic performances, high reliability, long life, excellent survivability can be achieved, and critical speed are increased. Torsional vibration problem of helicopter is also solved.

Current Situation and Prospect of the Application of FRP in Material Engineering

2014 ◽  
Vol 898 ◽  
pp. 375-377
Author(s):  
Xiao Lin Dong
Keyword(s):  
Composite Material ◽  
Fatigue Resistance ◽  
Civil Engineering ◽  
Temperature Stability ◽  
High Strength ◽  
Current Situation ◽  
Light Weight ◽  
Wood Structure ◽  
Frp Composites ◽  
Frp Composite

The FRP composite material can replace the traditional under certain conditions, the wood structure of steel and reinforced materials, with high strength, light weight, resistance to corrosion and fatigue resistance, temperature stability and good special, because by civil engineeringcircles. This paper introduces the characteristics of FRP composites, the application of FRP composites in civil engineering are discussed, finally, the prospect of FRP materials are introduced.

Bio-Inspired Synthesis of Al2O3/Polymer Composite

2012 ◽  
Vol 724 ◽  
pp. 107-110
Author(s):  
Kyung Mok Nam ◽  
Yoon Joo Lee ◽  
Soo Ryong Kim ◽  
Woo Teck Kwon ◽  
Hyung Sun Kim ◽  
...  
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Bending Strength ◽  
High Strength ◽  
Organic Polymer ◽  
Ceramic Plate ◽  
Light Weight ◽  
Polymeric Compound ◽  
Inorganic Hybrid ◽  
Inorganic Composite

The formation of organic-inorganic hybrid composite with ceramic platelets and polymeric compound can have the higher strength and higher elasticity than metal, which is a nanocomposite with high strength and light weight. Ceramic platelet such as Al2O3has been used to form organic-inorganic composite material using PMMA as an organic polymer. Bending strength and density of the composites prepared by infiltration and post-warm pressing were measured. FE-SEM and TG analysis were carried out to determine the microstructure of the organic-inorganic composite materials. Bending strengths and densities of the composites prepared by Al2O3ceramic plate and PMMA after post-warm pressing were ~70MPa and ranged from 2.4 to 2.6, respectively.

Analysis on Unwinding Effect of FRP-OFBG Cables

2011 ◽  
Vol 704-705 ◽  
pp. 1017-1023 ◽  
Author(s):  
M.L. Ma ◽  
J. Guo ◽  
Hui Li ◽  
W.L. Chen
Keyword(s):  
Quality Control ◽  
Corrosion Resistance ◽  
Control Method ◽  
High Strength ◽  
Test System ◽  
Light Weight ◽  
Advanced Composite ◽  
Quality Control Method ◽  
Advanced Composite Materials ◽  
Material Test System

As one kind of the advanced composite materials (ACM), FRP is now getting widely used in civil engineering for its advantages as light weight, electromagnetic isolation, high strength, fatigue resistance and corrosion resistance. This article wants to provide a quality control method for the FRP cables by eliminating its unwinding effect error. Firstly, two FRP-OFBG (Optical Fiber Bragg Grating) cables were fabricated in factory, and then the two specimens were tested by the MTS (material test system). Secondly, theoretical understandings with boundary conditioned formulas were provided for analysis on the unwinding process of the cable. After that the unwinding displacement of the FRP-OFBG cable was obtained by using the b-value method. Finally, a service ability assessment of the cable was given before the conclusions.

Type Selection Study of Composite Material for Holding Poles Application in Transmission Line

2013 ◽  
Vol 378 ◽  
pp. 284-288
Author(s):  
Yu Jing Hao ◽  
Miao Qian ◽  
Ni Da
Keyword(s):  
Composite Material ◽  
Transmission Line ◽  
High Voltage ◽  
Power Transmission ◽  
High Strength ◽  
Power Transmission Line ◽  
Light Weight ◽  
Engineering Structure ◽  
Type Selection ◽  
Calculation Analysis

Following construction development of ultra-high voltage power transmission line, requirements on light weight and high strength of the holding pole in construction of the power transmission line is higher and higher. This paper analyzes and compares the current new-brand material which can be applied in the engineering structure, and determines one new-brand material and carries out forcing calculation analysis of the holding pole.

A case study of a novel ducted composite material marine current turbine

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Jifeng Wang ◽  
Blake Gower ◽  
Norbert Müller
Keyword(s):  
Composite Material ◽  
High Strength ◽  
Numerical Approach ◽  
Filament Winding ◽  
Advanced Composite ◽  
Advanced Composite Materials ◽  
Marine Current Turbine ◽  
Marine Current ◽  
Current Turbine

AbstractAdvanced composite materials are widely used as marine current turbines due to their high strength-to-weight ratios and excellent resistance to corrosion. A novel manufacturing approach similar to filament winding has been developed and is able to produce the Composite Material Marine Current Turbines (CMMCTs) that have significant advantages over traditional designs. This paper presents numerical results investigating the performance of ducted CMMCTs. The numerical approach was performed using CFD in a free stream of water with various hydrodynamic flow conditions. The investigation results provide an insight into the hydrodynamic design and operation of CMMCTs.

scholarly journals Experimental and Design, CFD, Modal analysis of E 387 Helicopter Blade

2020 ◽  
pp. 159-164
Keyword(s):  
Composite Material ◽  
Modal Analysis ◽  
Mode Shape ◽  
Carrying Capacity ◽  
Cfd Simulation ◽  
High Strength ◽  
Light Weight ◽  
Ansys Software ◽  
Helicopter Blade ◽  
Specific Profile

Now a days it is observed that weight parameter is a specific issue for many companies for better efficiency of any product. So, in resent a specific profile of E 387 light weight helicopter blade is designed. Due to composite material of carbon epoxy it is light in weight but also high strength carrying blade. In present research, design using standard airfoil tool website is presented along with CFD simulation is been performed to know lift carrying capacity and also modal analysis is been performed using ANSYS software. Similarly, validation is concluded with FFT technique in which results obtained through modal analysis with mode shape and respective natural frequency are compared.

Design and Development of a Boron-Glass-Epoxy Lightweight Composite Gear Case

1971 ◽  
Author(s):  
W. N. Holcomb
Keyword(s):  
Composite Material ◽  
Corrosion Resistance ◽  
State Of The Art ◽  
High Strength ◽  
Reduction Gear ◽  
Light Weight ◽  
Design And Development ◽  
Good Corrosion Resistance ◽  
Epoxy Material ◽  
Gear Case

The design and development of a composite material front housing for the reduction gear of the T56 engine are discussed. The program was undertaken to advance the state-of-the-art in engine structures by making a material available that is capable of replacing aluminum and magnesium. The selected boron-glass-epoxy material exhibits high strength and specific stiffness, light weight, good corrosion resistance, and suitability for molding. The design, molding, machining, and testing phases of the programs are described.

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