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Insect-scale flapping-wing MAVs with variable transmission ratio and wingspan: achieving payload adaptability, and

Xiang Lu1, Yulie Wu2,3, Jie Chen1

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Summary
This summary is machine-generated.

Researchers developed a novel insect-scale flapping-wing micro aerial vehicle (FWMAV) with enhanced payload capacity. This design enables variable wingspan and transmission ratios for increased carrying ability and sustained hovering.

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Area of Science:

  • Robotics
  • Micro-aerial vehicles
  • Aerospace engineering

Background:

  • Insect-scale flapping-wing micro aerial vehicles (FWMAVs) offer advantages in stealth and maneuverability for applications like reconnaissance.
  • Current FWMAVs face limitations in payload capacity due to their small size and the need for integrated electronic components.

Purpose of the Study:

  • To present an enhanced structural design for an FWMAV that significantly increases its payload capacity.
  • To demonstrate an insect-scale FWMAV capable of variable size and adjustable payload capacity.

Main Methods:

  • The study involved modifying the transmission ratio and wingspan of FWMAVs.
  • Manufacturing FWMAVs with a variable wingspan ranging from 28mm to 45mm.
  • Implementing a passive damper structure for enhanced stability.

Main Results:

  • The enhanced FWMAV design achieved a lift-to-weight ratio exceeding 2.
  • The smallest configuration (28mm wingspan) is the first piezoelectric-decoupled FWMAV to achieve sustained lift-off.
  • The FWMAV demonstrated stable hovering for over 5 seconds, achieving sustained air stagnation at an insect scale.

Conclusions:

  • The novel FWMAV design successfully increases payload capacity through adjustable transmission ratio and wingspan.
  • This advancement enables the smallest functional piezoelectric-decoupled FWMAV for sustained flight.
  • The developed FWMAVs provide a foundation for practical applications of insect-scale MAVs in various fields.