Achieving bioinspired flapping wing hovering flight solutions on Mars via wing scaling.

Area of Science:

• Robotics
• Aerospace Engineering
• Planetary Science

Background:

• Martian atmospheric density is too low for conventional aircraft.
• Aerodynamic forces are limited by low atmospheric density, posing challenges for flight.
• Bioinspired dynamic scaling offers a potential solution for Martian flight.

Purpose of the Study:

• To investigate the feasibility of flapping wing robots for Martian atmospheric flight.
• To determine the necessary conditions for achieving stable flight in a simulated Martian environment.
• To optimize power consumption for flapping wing flight on Mars.

Main Methods:

• Numerical simulations using a 2D Navier-Stokes equation solver.
• Coupling with a 3D flight dynamics model for free flight simulation.
• Bioinspired dynamic scaling by preserving dimensionless parameters and scaling wing size.

Main Results:

• Hovering flight is possible on Mars by achieving dynamic similarity with Earth insects.
• Scaling wings 3-4 times larger than normal is required.
• A torsional spring significantly reduces inertial flap power, minimizing total power consumption.

Conclusions:

• Flapping wing robots are a viable option for Martian atmospheric flight.
• Bioinspired dynamic scaling and optimized wing design are crucial for success.
• Minimum power consumption of 188 W kg^-1 is achievable with a torsional spring at its natural frequency.