Abstract
Researchers detail new data in robotic s. According to news reporting originating from Beijing, People's Republic of Ch ina, by NewsRx correspondents, research stated, "Birds have remarkable flight ca pabilities due to their adaptive wing morphology." Funders for this research include National Natural Science Foundation of China. The news journalists obtained a quote from the research from Beijing Institute o f Technology: "However, studying live birds is time-consuming and laborious, and obtaining information about the complete wingbeat cycle is difficult. To addres s this issue and provide a complete dataset, we recorded comprehensive motion ca pture wing trajectory data from five free-flying pigeons (Columba livia). Five k ey motion parameters are used to quantitatively characterize wing kinematics: fl apping, sweeping, twisting, folding and bending. In addition, the forelimb skele ton is mapped using an open-chain three-bar mechanism model. By systematically e valuating the relationship of joint degrees of freedom (DOFs), we configured the model as a 3-DOF shoulder, 1-DOF elbow and 2-DOF wrist. Based on the correlatio n analysis between wingbeat kinematics and joint movement, we found that the str ongly correlated shoulder and wrist roll within the stroke plane cause wing flap and bending."
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