Showing papers in "Journal of Bionic Engineering in 2011"

TL;DR: This paper designs a modified Multi-Swarm PSO (MSPSO) to solve discrete problems, and proposes an Improved Feature Selection (IFS) method by integrating MSPSO, Support Vector Machines (SVM) with F-score method to achieve higher generalization capability.

TL;DR: In this paper, a thorough investigation on the microstructural and morphological aspects of dragonfly wings was carried out using scanning electron microscope and a precise three-dimensional numerical model was developed and natural frequencies and vibration modes of dragon fly forewing were determined by finite element method.

TL;DR: In this article, the Nafion membranes with thickness of 0.22 mm, 0.32 mm and 0.8 mm were fabricated by electroless plating and the elastic modulus of the casted membranes were obtained by a nano-indenter.

TL;DR: In this paper, the practicality and feasibility of active force control (AFC) integrated with Fuzzy Logic (FL) applied to a two-link planar arm actuated by a pair of Pneumatic Artificial Muscle (PAM) is investigated.

TL;DR: In this article, the authors investigated the optimisation of earthquake resistance of high buildings by multi-tuned mass dampers using bionic algorithms and found that the impact on the structure may be reduced essentially by the use of such dampers designed to interact in an optimal way.

TL;DR: In this paper, a self-repairing membrane for inflatable light weight structures such as rubber boats or Tensairity® constructions is presented, which closes the fissure if the membrane is punctured with a spike.

TL;DR: In this article, the structural characteristics of giant waterlily leaf ribs and cactus stem are extracted and used in the bio-inspired design of Lin MC6000 gantry machining center crossbeam.

TL;DR: In this article, a two-scale modeling and optimization approach was used for nacreous shells, which are composed of two distinct layers: the outer layer is made of calcite, which is a hard but brittle material, and the inner layer is composed of nacre, a tough and ductile material.

TL;DR: In this article, a Finite Element (FE) model was developed for simulating the dynamic electro-mechanical response of an IPMC structure under an external voltage input.

TL;DR: In this paper, the physical mechanisms of wet adhesion and dry adhesion were studied in animals, and it was demonstrated that van der Waals interaction is the dominant adhesive force in geckos' adhesion.

TL;DR: Titanium cermets were successfully synthesized on the surface of biomedical grade titanium alloys by using sequential carburization method as discussed by the authors, and the mechanical properties such as hardness, fracture toughness, and plasticity were measured to estimate the potential application of titanium cuminets.

TL;DR: In this paper, the water contact angles of the as-anodized bionic samples were measured using a contact angle meter (JC2000A) with the 3 μL water drop at room temperature.

TL;DR: A flexible-rigid hopping mechanism which is inspired by the locust jumping was proposed, and its kinematic characteristics were analyzed in this article, where a series of experiments were conducted to observe locust morphology and jumping process.

TL;DR: In this article, a pitching flexible fin made of silicone rubber and silicone foam was designed by copying the stiffness distribution profile and geometry of a rainbow trout and compared to that of a steadily swimming trout.

TL;DR: In this article, the aerodynamic effects of corrugation in model wings that closely mimic the wing movements of a forward flight bumblebee using the method of computational fluid dynamics were examined.

TL;DR: In this paper, the swimming motion of a squid-like robot with two undulating side fins, mimicking those of a Stingray or a Cuttlefish, was investigated through flow computation around the body.

TL;DR: In this article, a bionic musical instrument using Physarum polycephalum is presented, which is a huge single cell with thousands of nuclei, which behaves like a giant amoeba.

TL;DR: In this paper, the robust point stabilization problem of a tracked mobile robot is discussed in the presence of track slipping, which can be treated as model perturbation that violates the pure nonholonomic constraints.

TL;DR: In this article, an aluminum specimen was anodically oxidized to obtain a porous alumina template, which was used as an electrode to fabricate a surface with micro structures through electrochemical deposition of a metal such as nickel and copper after enlargement of pores.

TL;DR: The results showed that the cartilage/bone interface is in a hierarchical structure which is composed of four different tissue layers, and the simplified structure model is a 4-layer gradient biomimetic structure, which corresponds to four different tissues of natural cartilage-bone interface.

TL;DR: In this paper, the effect of swimming speed, flapping amplitude, frequency and flexure amplitude on the propulsion performance of the rigid and flexible tuna-tails is investigated, and it is shown that a pair of leading edge vortices develop along the tail surface as it undergoes an oscillating motion.

TL;DR: In this article, a 2.3 meters long and 420 gram mass flapping-wing blimp was used as a test platform for aerodynamics and flight dynamics, and the results were used to estimate parameters in a coupled quasi-steady aerodynamics/Newtonian flight dynamics model.

TL;DR: In this article, a linkage mechanism is proposed to transform the linear motion of the VCM into the flapping and twisting motions of wings, which produces an average positive vertical force proportional to the twist angle.

TL;DR: The proposed direct panoramic image mosaic algorithm effectively solved the problem of misalignment of the mosaic image and eliminated mosaic cracks as a result of the illumination factor and other factors and has better real-time properties compared to other methods.

TL;DR: The design scheme of the system, the development of the bionic control circuit, and the proposed mathematical model of bionic compound eyes for data acquisition and object detection for moving target detection are discussed.

TL;DR: In this paper, the motion of three German Shepherd dogs on a treadmill was recorded using a three-dimensional motion capture system, and the joint trajectories of the dogs' hind limbs were computed and a time series analysis was conducted.

TL;DR: Two essential attributes of double rotation are found: (1) the elytron to body articulation is approximately a spherical mechanism; (2) transient opening and closing possess single degree of freedom.

TL;DR: In this paper, a walking pattern based on Center of Pressure (COP) switched and modeled after human walking is introduced, and a parameterization method for the proposed walking gait is presented.

TL;DR: In this article, an experimental test validates that the condensation from the porous medium can be obtained by electroosmotic force generated by external electric field, especially for specific desiccant powders like zeolite and diatomaceous earth.

TL;DR: A novel approach based on combining neuro-fuzzy network models with biological knowledge to infer strong regulators and interrelated fuzzy rules and it is shown that this approach can work effectively and is used to reconstruct a partial gene regulatory network of yeast.