Effects of Bionic Units in Different Scales on the Wear Behavior of Bionic Impregnated Diamond Bits
Publication date: October 2016 Source:Journal of Bionic Engineering, Volume 13, Issue 4 Author(s): Zhaozhi Wang, Ke Gao, Youhong Sun, Zhihui Zhang, Shiyu Zhang, Yunhong Liang, Xiujuan Li, Luquan Ren Based on anti-wear theory of soil animals, the samples of impregnated diamond bit with bionic self-regenerated non-smooth surface were designed and fabricated. Such a bionic surface was characterized by concave-shape units of different scales that continuously maintained their shape and function during the whole working process. Abrasion tests were carried out to investigate the performance of samples. Results showed ...
Source: Journal of Bionic Engineering - November 8, 2016 Category: Biotechnology Source Type: research
Function Modeling of the Infrared Organ of “Little Ash Beetle” Acanthocnemus Nigricans (Coleoptera, Acanthocnemidae)
Publication date: October 2016 Source:Journal of Bionic Engineering, Volume 13, Issue 4 Author(s): Zupeng Zhou, Yubing Gong, Daoguo Yang, Anke Schmitz, Helmut Schmitz Acanthocnemus nigricans is an inconspicuous pyrophilous beetle that approaches forest fires. The beetle is equipped with a pair of unique infrared (IR) receptors on its prothorax that allows it to detect hot surfaces in flight. The IR receptor consists of a little disc bearing about 90 tiny sensilla on its anterior half. The disc sensilla are unique in insects and their functions are largely unknown. Using a 3D reconstruction of the head and thorax we ...
Source: Journal of Bionic Engineering - November 8, 2016 Category: Biotechnology Source Type: research
Unique Structure and Mechanical Property of Dabryanus Scale
This study may provide new strategy for the design of flexible armor or flexible devices. (Source: Journal of Bionic Engineering)
Source: Journal of Bionic Engineering - November 8, 2016 Category: Biotechnology Source Type: research
Biomimetic Design of Oxidized Bacterial Cellulose-gelatin-hydroxyapatite Nanocomposites
Publication date: October 2016 Source:Journal of Bionic Engineering, Volume 13, Issue 4 Author(s): Mao Yang, Wenjuan Zhen, Hui Chen, Zhihua Shan Oxidized Bacterial Cellulose (OBC)-hydroxyapatite (HAp)-gelatin (Gel) nanocomposites were prepared by a biomimetic process. HAp nanocrystals were precipitated in a mixed solution of Na2HPO4 (pH 9.2) and Gel solution at 37 °C, and OBC was used to generate a three-dimensional (3D) network stent. The tensile strength of OBC-HAp-G was higher than 0.3 MPa, and the complete degradation time was approximately 90 d in Simulated Body Fluid (SBF). Fourier transform infrared spectrosc...
Source: Journal of Bionic Engineering - November 8, 2016 Category: Biotechnology Source Type: research
A Simple Method for Fabrication of Bionic Superhydrophobic Zinc Coating with Crater-like Structures on Steel Substrate
Publication date: October 2016 Source:Journal of Bionic Engineering, Volume 13, Issue 4 Author(s): Hao Li, Sirong Yu, Xiangxiang Han, Shanbao Zhang, Yan Zhao Surface modification with superhydrophobicity is a popular and challenging research field on metals. In this work, a simple method was used to fabricate a bionic superhydrophobic zinc coating with crater-like structures on pipeline steel surface. This method involved electrodeposition of zinc coating and chemical reaction in perfluorooctanoic acid ethanol solution. The perfluorooctanoic acid with low surface free energy was not only used for chemical etching bu...
Source: Journal of Bionic Engineering - November 8, 2016 Category: Biotechnology Source Type: research
Bio-inspired Tactile FA-I Spiking Generation under Sinusoidal Stimuli
Publication date: October 2016 Source:Journal of Bionic Engineering, Volume 13, Issue 4 Author(s): Zhengkun Yi, Yilei Zhang For the design and development of advanced prosthetic limbs, many attempts have been made to restore the function of mechanoreceptors using artificial tactile sensors. Mechanoreceptors in human skin, which make dexterous manipulation possible, respond to the mechanical stimuli in the form of spike trains. In this paper, a bio-inspired approach to replicate the Fast Adapting type I (FA-I) mechanoreceptor is developed, where piezoelectric materials, such as polyvinylidene difluoride (PVDF) films, ar...
Source: Journal of Bionic Engineering - November 8, 2016 Category: Biotechnology Source Type: research
Adaptive Fuzzy Sliding Mode Controller with Nonlinear Observer for Redundant Manipulators Handling Varying External Force
Publication date: October 2016 Source:Journal of Bionic Engineering, Volume 13, Issue 4 Author(s): Jun He, Minzhou Luo, Qingqing Zhang, Jianghai Zhao, Linsen Xu An Adaptive Fuzzy Sliding Mode Controller with Nonlinear Observer (AFSMCO) for the redundant robotic manipulator is proposed in this paper. This approach could achieve a precise trajectory tracking for a robot manipulator in the presence of uncertainties and disturbances. Primarily, a suitable observer using the recursive algorithm is presented for an accurate estimation of external disturbances caused by the varying external force. Secondly, the adaptive fu...
Source: Journal of Bionic Engineering - November 8, 2016 Category: Biotechnology Source Type: research
A Simplified Control Method to Achieve Stable and Robust Quadrupedal Quasi-passive Walking with Compliant Legs
Publication date: October 2016 Source:Journal of Bionic Engineering, Volume 13, Issue 4 Author(s): Qiao Sun, Feng Gao, Chenkun Qi, Xianbao Chen The principle of passive dynamic walking has drawn lots of attentions in the field of robotics for it provides a possibility to realize natural walking. However, stabilizing the quadrupedal passive walking remains challenging. In this paper, a novel control method is proposed to stabilize the quadrupedal quasi-passive walking. Inspired by biological concepts, this method treats the foreleg pair and hindleg pair as two bipedal walkers, and a virtual model controller is designe...
Source: Journal of Bionic Engineering - November 8, 2016 Category: Biotechnology Source Type: research
Adaptive Walking Control of Biped Robots Using Online Trajectory Generation Method Based on Neural Oscillators
Publication date: October 2016 Source:Journal of Bionic Engineering, Volume 13, Issue 4 Author(s): Chengju Liu, Danwei Wang, Erik David Goodman, Qijun Chen This work concerns biped adaptive walking control on irregular terrains with online trajectory generation. A new trajectory generation method is proposed based on two neural networks. One oscillatory network is designed to generate foot trajectory, and another set of neural oscillators can generate the trajectory of Center of Mass (CoM) online. Using a motion engine, the characteristics of the workspace are mapped to the joint space. The entraining property of the...
Source: Journal of Bionic Engineering - November 8, 2016 Category: Biotechnology Source Type: research
Analysis and Comparison of Two Jumping Leg Models for Bioinspired Locust Robot
This study offers a quantitative analysis and comparison for different jumping leg models of bionic locust jumping robot. Furthermore, a theoretical basis for future research and engineering application is established. (Source: Journal of Bionic Engineering)
Source: Journal of Bionic Engineering - November 8, 2016 Category: Biotechnology Source Type: research
Investigation on the Reduction of Center of Mass Oscillations of Flexible Flapping Fins
Publication date: October 2016 Source:Journal of Bionic Engineering, Volume 13, Issue 4 Author(s): Ashok K Kancharala, Michael K Philen Nature has been a source of inspiration for developing advanced autonomous aerial and underwater vehicles. The bodies with flapping appendages produce Center of Mass (COM) oscillations as the flapping fins generate forces oscillatory in nature. The vehicles with larger COM oscillations pose the problems of control and maneuverability and this paper discusses the effect of flexibility and other operating parameters such as heaving, pitching amplitudes and operating frequency on COM osci...
Source: Journal of Bionic Engineering - November 8, 2016 Category: Biotechnology Source Type: research
Experimental Study on Drag-induced Balancing via a Static Tail for Water-running Robots
In this study, we investigated the effectiveness of a static tail for bio-inspired water-running locomotion. The tail was added to increase the stability in the rolling and yawing directions based on the hydrodynamic force from interaction between the tail and the water. The drag coefficient in the interaction is not easy to calculate analytically, so experimental studies were done for various static tail shapes. Five different shapes and compliances in two directions were considered for experimental design candidates. The result was applied to design a stable amphibious robot that can run on ground and water surfaces. (So...
Source: Journal of Bionic Engineering - November 8, 2016 Category: Biotechnology Source Type: research
Locomotion Performance of the Amphibious Robot on Various Terrains and Underwater with Flexible Flipper Legs
Publication date: October 2016 Source:Journal of Bionic Engineering, Volume 13, Issue 4 Author(s): Bin Zhong, Youcheng Zhou, Xiaoxiang Li, Min Xu, Shiwu Zhang Amphibious robots are attracting more and more attentions from researchers worldwide for their broad applications in resource exploration, disaster rescue, and reconnaissance. Amphibious robot with transformable flipper-leg composite propulsion mechanisms can adapt various terrestrial and water environments. In this paper, we explored the locomotion performance of a amphibious robot with flexible flipper legs on various terrains and underwater through dynamica...
Source: Journal of Bionic Engineering - November 8, 2016 Category: Biotechnology Source Type: research
Micro Manipulation Using Magnetic Microrobots
Publication date: October 2016 Source:Journal of Bionic Engineering, Volume 13, Issue 4 Author(s): Hoyeon Kim, Jamel Ali, U Kei Cheang, Jinwoo Jeong, Jin Seok Kim, Min Jun Kim When developing microscale robotic systems it is desired that they are capable of performing microscale tasks such as small scale manipulation and transport. In this paper, we demonstrate the transport of microscale objects using single or multiple microrobots in low Reynolds number fluidic environment. The microrobot is composed of a ‘U’ shaped SU-8 body, coated on one side with nickel. Once the nickel coating is magnetized, the motion o...
Source: Journal of Bionic Engineering - November 8, 2016 Category: Biotechnology Source Type: research
System Identification Method for Small Unmanned Helicopter Based on Improved Particle Swarm Optimization
Publication date: July 2016 Source:Journal of Bionic Engineering, Volume 13, Issue 3 Author(s): Qi Bian, Kairui Zhao, Xinmin Wang, Rong Xie This paper proposes a novel method for Small Unmanned Helicopter (SUH) system identification based on Improved Particle Swarm Optimization (IPSO). In the proposed IPSO, every particle will do a local search as a “self-check” before updating the global velocity and position. Then, the global best particle is created by a certain number of elitist particles in order to get a rapid rate of convergence during calculation. Thus both the diversity and convergence speed can be...
Source: Journal of Bionic Engineering - July 16, 2016 Category: Biotechnology Source Type: research
