Wooden Propeller Blades: Wooden propeller blades were the earliest materials used for propellers. They have advantages such as low cost, lightweight, simple manufacturing, and ease of repair. However, wooden propeller blades also come with drawbacks, including low strength, poor stiffness, susceptibility to deformation, moisture absorption, rotting, and flammability.
Resin Plastic Propeller Blades: Resin plastic propeller blades are composed of resin and other reinforcing materials such as fiberglass and carbon fiber. They offer advantages such as lightweight, high strength, good stiffness, corrosion resistance, wear resistance, heat resistance, and flame resistance. However, resin plastic propeller blades also have disadvantages, including high cost, complex manufacturing processes, susceptibility to aging, and difficulty in repair.
Metal Propeller Blades: Metal propeller blades are made from materials like aluminum alloy, titanium alloy, or steel. They possess advantages like high strength, good stiffness, wear resistance, high-temperature resistance, and impact resistance. Nevertheless, metal propeller blades also have drawbacks, including heavy weight, high cost, susceptibility to rust, fatigue, and noise generation.
Fiberglass Propeller Blades: Fiberglass propeller blades, a type of resin plastic propeller, are reinforced with fiberglass. They offer advantages such as lightweight, high strength, good stiffness, corrosion resistance, wear resistance, heat resistance, and flame resistance.
Carbon Fiber Propeller Blades: Carbon fiber propeller blades, another type of resin plastic propeller, are reinforced with carbon fiber. They share advantages such as lightweight, high strength, good stiffness, corrosion resistance, wear resistance, heat resistance, and flame resistance.
Generally, composite material propeller blades have higher durability compared to metal and wooden propeller blades. This is attributed to several advantages of composite materials:
- Fatigue Resistance: Composite materials can withstand prolonged cyclic loads without fracturing or failing, exhibiting significantly higher fatigue life compared to metal materials.
- Design Flexibility: Composite materials, being anisotropic, allow for the design of rotor blades tailored to specific aerodynamic and load requirements, optimizing the structural response to forces.
- Corrosion Resistance: Composite materials do not corrode, and when combined with titanium alloy fasteners, they can address mechanical connection issues.
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