scholarly journals Design of a Novel Six-Axis Wrist Force Sensor

Sensors ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 3120 ◽  
Author(s):  
Shanshan Hu ◽  
Huaiyang Wang ◽  
Yong Wang ◽  
Zhengshi Liu
Keyword(s):  
Simulation Analysis ◽  
Dynamic Performance ◽  
Force Sensor ◽  
The Novel ◽  
Element Analysis ◽  
Body Design ◽  
Design Idea ◽  
Bridge Circuits ◽  
Design Ideas ◽  
Better Than

A novel elastic body design idea of six-axis wrist force sensor with a floating beam was raised based on the analysis of the robot six-axis wrist force sensor with a floating beam. The design ideas improve the sensor’s dynamic performance significantly, while not reducing its sensitivity. First, the design ideas were described in detail, which were analyzed by mechanical modeling and were verified by finite element analysis. Second, the static simulation analysis of the novel elastomer of sensor was carried out. According to the strain distribution performance, the position of the strain gauges pasted and the connection mode of the full-bridge circuits were decided, which can achieve theoretical decoupling. Finally, the comparison between the static and dynamic performance of the novel sensor and the original sensor with floating beams was done. The results show that the static and dynamic performance of the novel six-axis wrist sensor are all better than the original sensor.

Influence of Design Representation on Effectiveness of Idea Generation

2001 ◽  
Author(s):  
Felicia L. McKoy ◽  
Noé Vargas-Hernández ◽  
Joshua D. Summers ◽  
Jami J. Shah
Keyword(s):  
Graphical Representation ◽  
Idea Generation ◽  
Pictorial Representation ◽  
Design Representation ◽  
Standard Set ◽  
Textual Representation ◽  
Design Idea ◽  
Design Ideas ◽  
Better Than

Abstract The issue being investigated is the role of the type of representation used for recording design ideas in idea generation techniques for conceptual design. An empirical study was conducted to test the hypothesis that graphical (pictorial) representation is better than textual (sentential) for recording of design ideas. This study used a standard set of outcome measures: fluency, quality, novelty, and variety of ideas generated by use of different representations. The expressiveness of each representation was also studied by examining the ability to convey key design information of an idea. The experiment was designed and data analyzed based on the principles of statistical DOE. The study confirms the hypothesis that graphical representation provide greater benefits for engineering design idea generation than textual representation.

Measuring Model and Design of the Novel Loaded Over-Constrained Parallel Six-Component Force/Torque Sensor

2012 ◽  
Author(s):  
Yanzhi Zhao ◽  
Chao Lu ◽  
Tieshi Zhao
Keyword(s):  
Finite Element ◽  
Theoretical Calculations ◽  
Force Sensor ◽  
The Novel ◽  
Torque Sensor ◽  
Element Analysis ◽  
Sensor Structure ◽  
Structure Scheme ◽  
Flexible Deformation ◽  
Component Force

Based on constrained screw type synthesis theory, a novel spacial over-constrained parallel six-component force/torque sensor mechanism which contains 12 SS branches was proposed. Then considering the branches flexible deformation, with the supplementary deformation coordination and physical constitutive constraint equations, structural balance equations were established respectively in six one-way measurement states. The stress and mode of the whole over-constrained parallel six-component force sensor structure scheme were analyzed with the Finite Element Method (FEM), and the analysis results were contrasted and conclused that theoretical calculations and Finite Element Analysis of conclusion were coincide.

The Marine Derrick Test Tool Design and Optimization

2012 ◽  
Vol 226-228 ◽  
pp. 1055-1059
Author(s):  
Jiong Liu ◽  
Jun Pu Wang ◽  
Fu Wan ◽  
Yong Ling Zhou ◽  
Shi Xia
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Tool Design ◽  
Analysis Software ◽  
Element Analysis ◽  
Design And Optimization ◽  
Test Tool ◽  
Design And Manufacturing ◽  
Design Ideas ◽  
Better Than

In this paper, aim the circumstances of derrick and substructure for a specific offshore platform, two derrick test tools be devised, The substructure and the test tool model established and assembled by Workbench software, and through the ANSYS finite element analysis software calculated the substructure and the test tool, then based on the analysis in contact with the forces condition of the test tool that were optimized. By comparing the test tools can be found, the test tooling option II that the weight, the forces condition and operation is better than another one, so when the conditions to meet the circumstances, option II is recommended to use. The design ideas and methods for test tool design and manufacturing provides a useful reference.

Study on Effect of Rolling Crashworthiness of the Main SUV Vehicle Components

2011 ◽  
Vol 230-232 ◽  
pp. 620-624
Author(s):  
Guang Yao Zhao ◽  
Peng Fu ◽  
Chuan Yin Tang ◽  
Di Zhang
Keyword(s):  
Finite Element ◽  
Energy Absorption ◽  
Simulation Analysis ◽  
Element Model ◽  
Test Methods ◽  
The Body ◽  
Design Parameters ◽  
Software Environment ◽  
Element Analysis ◽  
Body Design

Aimed at the body of SUV vehicle , according to the criteria of FMVSS216 vehicle safety regulations , in LS-DYNA software environment , the simulation analysis of effects of the design parameters of main components of the body on roll crashworthiness in the process of vehicle crashing and rolling is presented in the paper , based on finite element analysis method, with the test methods of applying pendulum collision. The characteristics of the crashworthiness and energy absorption of the pillar pendulum which have different design parameters, such as shapes and thickness, et. al., are emphasized particularly in the paper. A simple finite element model of SUV is established, the effect of different design parameters of stiffness of body cover to the whole distribution of energy absorption and the reasonable transfer of total energy is discussed. The noticeable issue and advice on body design of SUV is proposed.

Studies on Mechanical Behavior of "Box Structure" Residence

2014 ◽  
Vol 578-579 ◽  
pp. 151-154
Author(s):  
Yu Cao ◽  
Zhao Bo Meng ◽  
Guan Dong Qiao ◽  
Yong Sheng Zhao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Mechanical Behavior ◽  
Dynamic Performance ◽  
Structure Design ◽  
Analysis Software ◽  
Element Analysis ◽  
Box Structure ◽  
Building System ◽  
Design Ideas

The "box structure" is a building system which was highly prefabricated and assembled. Taking the "box structure" residence as an example, the static and dynamic performance is discussed and finite element analysis software ANSYS is applied to verify "box structure" design ideas.

Application of Coupled Structural Acoustic Analysis and Sensitivity Calculations to a Tire Noise Problem

2012 ◽  
Vol 40 (1) ◽  
pp. 25-41 ◽  
Author(s):  
H. M. R. Aboutorabi ◽  
L. Kung
Keyword(s):  
Performance Improvement ◽  
Acoustic Analysis ◽  
Simulation Analysis ◽  
Analysis Method ◽  
Vehicle Manufacturer ◽  
Element Analysis ◽  
Equipment Manufacturer ◽  
Tire Noise ◽  
Fea Modeling ◽  
Testing Instruments

Abstract REFERENCE: H. M. R. Aboutorabi and L. Kung, “Application of Coupled Structural Acoustic Analysis and Sensitivity Calculations to a Tire Noise Problem,” Tire Science and Technology, TSTCA, Vol. 40, No. 1, January – March 2012, pp. 25–41. ABSTRACT: Tire qualification for an original equipment (OE) program consists of several rounds of submissions by the tire manufacturer for evaluation by the vehicle manufacturer. Tires are evaluated both subjectively, where the tire performance is rated by an expert driver, and objectively, where sensors and testing instruments are used to measure the tire performance. At the end of each round of testing the evaluation results are shared and requirements for performance improvement for the next round are communicated with the tire manufacturer. As building and testing is both expensive and time consuming predictive modeling and simulation analysis that can be applied to the performance of the tire is of great interest and value. This paper presents an application of finite element analysis (FEA) modeling along with experimental verification to solve tire noise objections at certain frequencies raised by an original equipment manufacturer (OEM) account. Coupled structural-acoustic analysis method was used to find modal characteristics of the tire at the objectionable frequencies. Sensitivity calculations were then carried out to evaluate the strength of contribution from each tire component to the identified modes. Based on these findings changes to the construction were proposed and implemented that addressed the noise issue.

Dynamic Analysis of DVG 850 High-Speed Machining Center

2012 ◽  
Vol 487 ◽  
pp. 203-207
Author(s):  
Gong Xue Zhang ◽  
Xiao Kai Shen
Keyword(s):  
High Speed ◽  
Simulation Analysis ◽  
Response Analysis ◽  
Improved Method ◽  
Analysis Software ◽  
Element Analysis ◽  
Harmonic Response ◽  
Machining Center ◽  
Calculation Results ◽  
Harmonic Response Analysis

Purpose, with the application of workbench finite element analysis software, get the analysis results of DVG 850 high-speed vertical machining center via the modal analysis and harmonic response analysis. Use the calculation results for reference, put forward the improved method, and prove the credibility of the simulation analysis by testing DVG 850 prototype.

scholarly journals Coulomb-actuated microbeams revisited: experimental and numerical modal decomposition of the saddle-node bifurcation

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Anton Melnikov ◽  
Hermann A. G. Schenk ◽  
Jorge M. Monsalve ◽  
Franziska Wall ◽  
Michael Stolz ◽  
...  
Keyword(s):  
Finite Element ◽  
Microelectromechanical Systems ◽  
Dynamic Range ◽  
Dynamic Performance ◽  
Major Step ◽  
Element Analysis ◽  
Electrostatic Actuators ◽  
Voltage Range ◽  
Drive Voltage ◽  
Depth Analysis

AbstractElectrostatic micromechanical actuators have numerous applications in science and technology. In many applications, they are operated in a narrow frequency range close to resonance and at a drive voltage of low variation. Recently, new applications, such as microelectromechanical systems (MEMS) microspeakers (µSpeakers), have emerged that require operation over a wide frequency and dynamic range. Simulating the dynamic performance under such circumstances is still highly cumbersome. State-of-the-art finite element analysis struggles with pull-in instability and does not deliver the necessary information about unstable equilibrium states accordingly. Convincing lumped-parameter models amenable to direct physical interpretation are missing. This inhibits the indispensable in-depth analysis of the dynamic stability of such systems. In this paper, we take a major step towards mending the situation. By combining the finite element method (FEM) with an arc-length solver, we obtain the full bifurcation diagram for electrostatic actuators based on prismatic Euler-Bernoulli beams. A subsequent modal analysis then shows that within very narrow error margins, it is exclusively the lowest Euler-Bernoulli eigenmode that dominates the beam physics over the entire relevant drive voltage range. An experiment directly recording the deflection profile of a MEMS microbeam is performed and confirms the numerical findings with astonishing precision. This enables modeling the system using a single spatial degree of freedom.

A Set-theoretic Approach to Reasoning Services for the Description Logic 𝒟 ℒ D 4,×

2020 ◽  
Vol 176 (3-4) ◽  
pp. 349-384
Author(s):  
Domenico Cantone ◽  
Marianna Nicolosi-Asmundo ◽  
Daniele Francesco Santamaria
Keyword(s):  
Description Logic ◽  
Description Logics ◽  
Theoretic Approach ◽  
The Novel ◽  
Data Types ◽  
Left Hand ◽  
Rule Languages ◽  
Tableau System ◽  
High Scalability ◽  
Better Than

In this paper we consider the most common TBox and ABox reasoning services for the description logic 𝒟ℒ〈4LQSR,x〉(D) ( 𝒟 ℒ D 4,× , for short) and prove their decidability via a reduction to the satisfiability problem for the set-theoretic fragment 4LQSR. 𝒟 ℒ D 4,× is a very expressive description logic. It combines the high scalability and efficiency of rule languages such as the SemanticWeb Rule Language (SWRL) with the expressivity of description logics. In fact, among other features, it supports Boolean operations on concepts and roles, role constructs such as the product of concepts and role chains on the left-hand side of inclusion axioms, role properties such as transitivity, symmetry, reflexivity, and irreflexivity, and data types. We further provide a KE-tableau-based procedure that allows one to reason on the main TBox and ABox reasoning tasks for the description logic 𝒟 ℒ D 4,× . Our algorithm is based on a variant of the KE-tableau system for sets of universally quantified clauses, where the KE-elimination rule is generalized in such a way as to incorporate the γ-rule. The novel system, called KEγ-tableau, turns out to be an improvement of the system introduced in [1] and of standard first-order KE-tableaux [2]. Suitable benchmark test sets executed on C++ implementations of the three mentioned systems show that in several cases the performances of the KEγ-tableau-based reasoner are up to about 400% better than the ones of the other two systems.

Idea generation with Technology Semantic Network

2021 ◽  
pp. 1-19
Author(s):  
Serhad Sarica ◽  
Binyang Song ◽  
Jianxi Luo ◽  
Kristin L. Wood
Keyword(s):  
Engineering Design ◽  
Common Sense ◽  
Semantic Network ◽  
Idea Generation ◽  
Semantic Distance ◽  
The Core ◽  
Design Idea ◽  
Design Ideas ◽  
Design Ideation

Abstract There are growing efforts to mine public and common-sense semantic network databases for engineering design ideation stimuli. However, there is still a lack of design ideation aids based on semantic network databases that are specialized in engineering or technology-based knowledge. In this study, we present a new methodology of using the Technology Semantic Network (TechNet) to stimulate idea generation in engineering design. The core of the methodology is to guide the inference of new technical concepts in the white space surrounding a focal design domain according to their semantic distance in the large TechNet, for potential syntheses into new design ideas. We demonstrate the effectiveness in general, and use strategies and ideation outcome implications of the methodology via a case study of flying car design idea generation.

Sign in / Sign up

Export Citation Format

Share Document