scholarly journals Configuration Synthesis and Performance Analysis of Finger Soft Actuator

2018 ◽  
Vol 2018 ◽  
pp. 1-14
Author(s):  
Ziqiang Zhang ◽  
Hanlong Chen ◽  
Zining Zhang
Keyword(s):  
Performance Analysis ◽  
Degrees Of Freedom ◽  
Simulation Analysis ◽  
Design Method ◽  
Synthesis Method ◽  
Soft Actuator ◽  
Physiological Structure ◽  
Binding Forces ◽  
Configuration Synthesis ◽  
And Performance

Compared with the traditional rigid finger actuator, the soft actuator has the advantages of light weight and good compliance. This type of finger actuator can be used for data acquisition or finger rehabilitation training, and it has broad application prospects. The motion differences between the soft actuator and finger may cause extrusion deformation at the binding point, and the binding forces along nonfunctional direction may reduce drive efficiency. In order to reduce the negative deformation of soft structure and improve comfort, the configuration synthesis and performance analysis of the finger soft actuator were conducted for the present work. The configuration synthesis method for soft actuator was proposed based on the analysis of the physiological structure of the finger, and the soft actuator can make the human-machine closed-loop structure including n joints (n=1, 2, 3) meet the requirement of DOF (degrees of freedom). Then the typical feasible configurations were enumerated. The different typical configurations were analyzed and compared based on the establishment of mathematical models and simulation analysis. Results show that the configuration design method is feasible. This study offers a theoretical basis for designing the configuration of finger soft actuator.

Research on Ultra-Wideband TEM Horn Antenna and its Miniaturization

2013 ◽  
Vol 441 ◽  
pp. 162-165
Author(s):  
Ying Suo ◽  
Wei Li ◽  
Li Qing Wang ◽  
Qun Wu
Keyword(s):  
Simple Structure ◽  
Simulation Analysis ◽  
Dielectric Material ◽  
Design Method ◽  
Horn Antenna ◽  
Ultra Wideband ◽  
Simulation And Experiment ◽  
Wideband Radar ◽  
And Performance ◽  
Tem Horn

TEM horn antenna is one kind of directional Ultra-wideband antenna with simple structure. Based on the design method of TEM horn antenna, satisfied impedance and radiation character are obtained by simulation and experiment research. On this basis, by means of metal ridged loaded, background dielectric material loaded and distributed lossy metal loaded respectively, the miniaturization character is realized. The simulation analysis results show that load of traditional TEM horn antenna can get efficiently improvement in structure and performance which have widely application foreground in pulse radiation communication system and ultra-wideband radar system.

Design method of planar three-degrees-of-freedom serial compliance device with desired compliance characteristics

2012 ◽  
Vol 226 (9) ◽  
pp. 2331-2344 ◽  
Author(s):  
Man Bok Hong ◽  
Yong Je Choi
Keyword(s):  
Degrees Of Freedom ◽  
Design Method ◽  
Synthesis Method ◽  
Normal Contact ◽  
Compact Size ◽  
Novel Method ◽  
Parallel Connections ◽  
Mechanical Elements ◽  
Method Analysis ◽  
Three Degrees Of Freedom

In this article, a novel method for the systematic design of a planar three-degrees-of-freedom compliance device with desired compliance characteristics is presented. For the realization of desired compliance, the synthesis method of stiffness of a planar mechanism is first derived. The compliance device may be directly realized by means of parallel connections of the synthesized springs. However, the use of several mechanical elements such as joints and guides for spring assemblies for the realization may cause significant complexity in manufacturing the compliance device with high precision and in compact size. In order to resolve the problem, the form of serial connections of three torsional springs which has the same compliance as the form of parallel connections of the synthesized line springs is proposed. The serial form of torsional springs can be physically realized by designing proper shape of the circular flexure hinge corresponding to each of the torsional springs. For the illustration of the proposed design method, a planar serial compliance device with high compliance to the normal contact force is designed and verified by finite element method analysis.

HAWT Rotor Design and Performance Analysis

2009 ◽  
Author(s):  
Emrah Kulunk ◽  
Nadir Yilmaz
Keyword(s):  
Performance Analysis ◽  
Computer Program ◽  
Wind Turbine ◽  
Design Method ◽  
Aerodynamic Performance ◽  
Horizontal Axis Wind Turbine ◽  
Rotor Design ◽  
And Performance ◽  
Bem Theory ◽  
Blade Element

In this paper, a design method based on blade element momentum (BEM) theory is explained for horizontal-axis wind turbine (HAWT) blades. The method is used to optimize the chord and twist distributions of the blades. Applying this method a 100kW HAWT rotor is designed. Also a computer program is written to estimate the aerodynamic performance of the existing HAWT blades and used for the performance analysis of the designed 100kW HAWT rotor.

Design Method and Performance Analysis on the 250kW Micro-Hydropower System

2021 ◽  
Vol 35 (6) ◽  
pp. 36-46
Author(s):  
Yun-Seong Sim ◽  
Ju-Hoon Park ◽  
Young-Chul Choi ◽  
Kang-Yeon Lee ◽  
Byeong-Ho Jeong
Keyword(s):  
Performance Analysis ◽  
Design Method ◽  
Hydropower System ◽  
And Performance

Study on Optimization Design Method of Drilling Fixture of the Steering Knuckle of Vehicles

2012 ◽  
Vol 580 ◽  
pp. 33-36
Author(s):  
Wen Xing Li
Keyword(s):  
Finite Element ◽  
Performance Analysis ◽  
Finite Element Model ◽  
Mechanical Model ◽  
Optimization Design ◽  
Design Method ◽  
Element Model ◽  
Initial Design ◽  
Equivalent Mechanical Model ◽  
And Performance

Optimization design method of drilling fixture of the steering knuckle of vehicles was studied. Based on its equivalent mechanical model established, the efficient and accurate optimization design method was proposed. Its finite element model of the optimization design was established. Its optimization structure was obtained. This optimization structure was applied to the drilling fixture of the steering knuckle of a vehicle. The weight after optimization design was reduced by 1.5% than its initial design, and this optimization drilling fixture does work well. The method and basis are supported for its design and performance analysis.

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