System Integration and Improvements

 

Prototype configuration

 

 

Prototypes are composed of mutiple mechanical parts mimicking insect morphology:

Eclated view of the prototype

  • The thorax:  it serves as a support for the future electronics and batteries would be embedded
  • The tergum: it acts with actuatr as a resonator to save energy
  • The wings: it creates and bear aerodynamic force using passive torsion mechanism
  • Transmission: it realizes a direct coupling between tergum and wings to optimize energy transfer

 

 

Improvements

 

 

Transmission

The transmission is composed of four compliant torsional hinges that allow a direct coupling between tergum and wings.

Wings

Figure 2: (a) All-SU-8 wing dorsal view (optical picture), and (b)-(e) its cross-sections (SEM). As shown in (c) and (d), the ratios of thickness to width of LEVs are around 0.5 to 0.7, close to those of natural LEVs. (e) shows membrane thickness.

The wings are fabricated completely in SU-8 or are composed of PDMS membranes and SU-8/PDMS/SU-8 triple-layered veins.  SU-8 wings approach real ones in overall weight, vein pattern, flexural stiffness and mass distribution. Our process allows an easy, reliable and fast way to produce artificial wings of complex geometry and morphology mimicking natural insect wings.

The wing motion is composed of a flexion motion that creates an important velocity of the membrane and a favorable angle of attack emerge from dephased torsion motion.

  • Seminar : SCANNING MICROWAVE MICROSCOPY
    Davide Mencarelli, Ph.D. UPVM (Universita Polytechnica delle Marche) in Ancona (Italy) Friday 29 may 2018 – 2pm IEMN – LCI Salle du conseil – Villeneuve d’Ascq Abstract : Scanning Probe Microscopy (SPM) includes a wide class of different techniques united by the fact that a probe is scanned over a sample surface to build up […]
  • Seminar : OPTO-MECHANICS BY TRANSFORMATION OPTICS
    Davide Mencarelli, Ph.D. UPVM (Universita Polytechnica delle Marche) in Ancona (Italy) Friday 25 mai 2018 – 11pm IEMN – LCI Salle du conseil – Villeneuve d’Ascq Abstract : Rigorous approaches to the Electromagnetic/Mechanical problem are needed as a further step towards the development of microwave circuits based on phonon propagation at micro-and nano-scale. In the […]