Document Detail

Biomechanics of smart wings in a bat robot: morphing wings using SMA actuators.
MedLine Citation:
PMID:  22535882     Owner:  NLM     Status:  MEDLINE    
This paper presents the design of a bat-like micro aerial vehicle with actuated morphing wings. NiTi shape memory alloys (SMAs) acting as artificial biceps and triceps muscles are used for mimicking the morphing wing mechanism of the bat flight apparatus. Our objective is twofold. Firstly, we have implemented a control architecture that allows an accurate and fast SMA actuation. This control makes use of the electrical resistance measurements of SMAs to adjust morphing wing motions. Secondly, the feasibility of using SMA actuation technology is evaluated for the application at hand. To this purpose, experiments are conducted to analyze the control performance in terms of nominal and overloaded operation modes of the SMAs. This analysis includes: (i) inertial forces regarding the stretchable wing membrane and aerodynamic loads, and (ii) uncertainties due to impact of airflow conditions over the resistance-motion relationship of SMAs. With the proposed control, morphing actuation speed can be increased up to 2.5 Hz, being sufficient to generate lift forces at a cruising speed of 5 m s(-1).
J Colorado; A Barrientos; C Rossi; J W Bahlman; K S Breuer
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-04-26
Journal Detail:
Title:  Bioinspiration & biomimetics     Volume:  7     ISSN:  1748-3190     ISO Abbreviation:  Bioinspir Biomim     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-07-03     Completed Date:  2012-11-26     Revised Date:  2013-04-01    
Medline Journal Info:
Nlm Unique ID:  101292902     Medline TA:  Bioinspir Biomim     Country:  England    
Other Details:
Languages:  eng     Pagination:  036006     Citation Subset:  IM    
Centre for Automation and Robotics, Universidad Politécnica de Madrid, Madrid, Spain.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Biomimetic Materials
Biomimetics / instrumentation*
Chiroptera / physiology*
Computer Simulation
Computer-Aided Design
Elastic Modulus
Equipment Design
Equipment Failure Analysis
Flight, Animal / physiology*
Models, Biological
Movement / physiology*
Nickel / chemistry*
Robotics / instrumentation*
Titanium / chemistry*
Wing / physiology*
Reg. No./Substance:
12035-60-8/titanium nickelide; 7440-02-0/Nickel; 7440-32-6/Titanium
Erratum In:
Bioinspir Biomim. 2013 Mar;8(1):019501
Note: Bahlman, J W [added]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  A review of experimental techniques to produce a nacre-like structure.
Next Document:  Detection and characterization of small focal hepatic lesions (<=2.5 cm in diameter): a comparison o...