scholarly journals Parametric Design and Kansei Engineering in Goblet Styling Design

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Fong-Gong Wu ◽  
Chii-Zen Yu
Keyword(s):  
Evaluation Method ◽  
Parametric Design ◽  
Design Method ◽  
Three Dimensional ◽  
Transformation Method ◽  
Market Demand ◽  
Kansei Engineering ◽  
Cam Mechanism ◽  
Projective Curves ◽  
Point Data

In this study, we developed a computer-aided product design method for goblet styling design based on two methods. The first was parametric design derived from an adjustable cam mechanism, which was used for shape generation, and the second was Kansei engineering, which was used for shape evaluation. In the shape generation method, motion curves from an adjustable cam were used. Designers can collect feature point data from existing products to define the boundary conditions of adjustable cam motion equations; furthermore, adjustable motion curves allow parametric design. Through adjusting a single parameter, motion curves were changed to be used as projective curves for the styling design of goblets. Then, a coordinate transformation method was applied to support the three-dimensional styling design of goblets. In the shape evaluation method, some goblet stylings were regularly selected to determine adjective degrees by production design experts. Adjective degrees for goblets that had not been selected were determined through interpolation. Market demand was defined as the preference of customers for specific adjective degrees for goblets.

The Parametric Design and Simulation for Globoidal Indexing Cam Mechanism

2014 ◽  
Vol 599-601 ◽  
pp. 517-521
Author(s):  
Lin Wang ◽  
Ming Fu Yin
Keyword(s):  
Design Process ◽  
High Speed ◽  
Parametric Design ◽  
Design Method ◽  
Transformation Method ◽  
Secondary Development ◽  
Parametric Modelling ◽  
Automatic Production ◽  
Cam Mechanism ◽  
Modeling Software

Globoidal indexing cam mechanism is the spatial indexing mechanism of high speed, high precision and widely used in modern machine and automatic production line.But the working profile of the globoidal indexing cam mechanism is not fair for the space curved surface and it is difficult to model. The traditional design method requires a great deal of calculation, and the design process is complexed, we have to repeat the entire design process when changing any parameters, lead to low design efficiency and poor universality. To solve above disadvantages, this paper used the space meshing principle and space coordinate transformation method, based on 3 d modeling software Pro/ENGINEER, using vc + + and Pro/toolkit for secondary development, realize the parametric modelling of globoidal indexing cam mechanism, and the simulation and analysis of the generated cam mechanism.

scholarly journals Research on Parametric Design of Hydraulic Retarder Based on Multi-Field Coupling of Heat, Fluid and Solid

2015 ◽  
Vol 9 (1) ◽  
pp. 58-64 ◽  
Author(s):  
Kuiyang Wang ◽  
Jinhua Tang ◽  
Guoqing Li
Keyword(s):  
Numerical Simulation ◽  
Parametric Design ◽  
Design Method ◽  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Field Coupling ◽  
Sequential Coupling ◽  
Fluid Coupling ◽  
Hydraulic Retarder

In order to optimize the design method and improve the performance of hydraulic retarder, the numerical simulation of multi-field coupling of heat, fluid and solid is carried out to hydraulic retarder, based on the numerical computation and algorithm of heat-fluid coupling and fluid-solid coupling. The computation models of heat-fluid coupling and fluid-solid coupling of hydraulic retarder are created. The three dimensional model of hydraulic retarder is established based on CATIA software, and the whole flow passage model of hydraulic retarder is extracted on the basis of the three dimensional model established. Based on the CFD calculation and the finite element numerical simulation, the temperature field, stress field, deformation and stress state are analysised to hydraulic retarder in the state of whole filling when the rotate speed is 1600 r/min. In consideration of rotating centrifugal force, thermal stress and air exciting vibration force of blade surface, by using the sequential coupling method, the flow field characteristics of hydraulic retarder and dynamic characteristics of blade structure are analysised and researched based on multi-field coupling of heat, fluid and solid. These provide the theoretical foundation and references for parametric design of hydraulic retarder.

Parametric Design of Tractor Configuration Using API Based on CATIA

2010 ◽  
Vol 455 ◽  
pp. 411-416
Author(s):  
Ji Shun Li ◽  
L.H. Chen ◽  
L. Li
Keyword(s):  
Parametric Design ◽  
Design Method ◽  
Three Dimensional ◽  
Parametric Representation ◽  
Material Object ◽  
Chain Reactions ◽  
Development Cycle ◽  
Cad Cam ◽  
Key Issues ◽  
Small Change

The traditional shape design method of tractor is mainly completed based on the manual design. Messages are transmited mainly through material object, model, blueprint and template. The material object and model even have a small change that will cause massive chain-reactions such as tedious blueprint revision. And there will be a great many of problem, such as the development cycle of tractor to be long, the accumulative error of design to be big, the development cost to be high and product universalization and serialized degree to be low. This problem is key problem to be solved for shape designer. Advanced design method such as CAD/CAM provid solutions for us, and especially the concept of parametric design was applied. In this paper an appfoach for the parametric design of tractor configuration will be presented. To this end, there are two key issues to be solved: First, the parametric representation of the tractor configuration, second，how to generate a three—dimesional shape of the tractor automatically based on the parametric representation. The parametric design of the tractor configuration is implemented by making use of the API technique of the CAD software，namely automation in CATIA．The test example shows that the approach presented is able to generate a three dimensional shape of the tractor automatically and meet the need of the parametric design of tractor configuration.

A general evaluation method for the diabatic journal bearing

1974 ◽  
Vol 336 (1606) ◽  
pp. 307-325 ◽  
Keyword(s):  
Evaluation Method ◽  
Journal Bearing ◽  
Design Method ◽  
Three Dimensional ◽  
Algebraic Equations ◽  
Mixing Conditions ◽  
General Evaluation ◽  
Wide Range ◽  
Energy Equations ◽  
Independent Parameters

A design method is described for the steadily loaded, full journal bearing. This is presented as a non-iterative set of algebraic equations, where a dependent bearing parameter, e. g. eccentricity or power-loss, is predicted in terms of known independent parameters which include bearing geometry, running conditions and oil characteristics. The method is developed from a regression analysis of accurately computed, fully thermohydrodynamic, solutions for the bearing. These solutions are generated by simultaneously solving the Reynolds and energy equations in the oil film, the Laplace equation in the bearing material and the oil-mixing conditions at inlet. A quasi three-dimensional finite-difference technique is used. Both the particular solutions and the predictions of the design method compare favourably with a wide range of experimental data, the latter showing an improvement in accuracy and economy on existing design methods.

System Design of Cam Mechanism Based on Fellower Structure and General Kinematic Laws

2010 ◽  
Vol 42 ◽  
pp. 219-223
Author(s):  
Liang Wen Wang ◽  
An Sheng Li ◽  
Duan Qin Zhang ◽  
Wei Gang Tang
Keyword(s):  
System Design ◽  
Design Process ◽  
Program Design ◽  
Parametric Design ◽  
Design Method ◽  
Mathematic Model ◽  
Design System ◽  
Cam Mechanism ◽  
The Law ◽  
General Motion

According to the different fellower structure and general simple trapezoid motion law of cam mechanism, this paper established a mathematic model for the motion of fellower structure of cam mechanism. The design method of motion law of the fellower structure was introduced, and the law of motion transition of fellower system and the related issues with program design were studied. A design system was developed using VB code based fellower structure and general motion laws. And the system could solve the curve of motion law for the fellower system and the eigenvalue of the curve, and finally realize parametric design of motion law for the fellower structure of cam mechanism. And the system could calculate and output the coordinate of cam configuration, and improve the digitized design process of cam parametric. The interface of the designed system is friendly and convenient, and the system could be used in both engineering and teaching.

scholarly journals Development of a Parametric Design Method for Various Woven Fabric Structures

2011 ◽  
Vol 6 (4) ◽  
pp. 155892501100600 ◽  
Author(s):  
Sungmin Kim
Keyword(s):  
Parametric Design ◽  
Design Method ◽  
Spline Approximation ◽  
Three Dimensional ◽  
Mapping Method ◽  
Woven Fabric ◽  
Script Language ◽  
Calculation Algorithm ◽  
Three Dimensional Mapping ◽  
Fabric System

An integrated woven fabric system has been developed. A series of parametric design rules have been defined by analyzing famous woven structures. An expandable script language and its compiler have been developed to generate scalable weave diagrams using those rules. A calculation algorithm has also been developed to generate draft and peg plans based on the weave diagrams. Finally, a two-dimensional realistic fabric image rendering function using the actual image of various yarns, a three-dimensional fabric modeling method based on B-Spline approximation, and a pseudo three-dimensional mapping method for simulated images of final products were all integrated into the system.

Aerodynamic Design of Turbomachinery Blading in Three-Dimensional Flow: An Application to Radial Inflow Turbines

1993 ◽  
Vol 115 (3) ◽  
pp. 602-613 ◽  
Author(s):  
Y. L. Yang ◽  
C. S. Tan ◽  
W. R. Hawthorne
Keyword(s):  
Parametric Design ◽  
Design Method ◽  
Three Dimensional ◽  
Inviscid Flow ◽  
Turbine Rotor ◽  
Computational Method ◽  
Navier Stokes ◽  
Design Calculation ◽  
Analysis Tool ◽  
Turbine Wheel

A computational method based on a theory for turbomachinery blading design in three-dimensional inviscid flow is applied to a parametric design study of a radial inflow turbine wheel. As the method requires the specification of swirl distribution, a technique for its smooth generation within the blade region is proposed. Excellent agreements have been obtained between the computed results from this design method and those from direct Euler computations, demonstrating the correspondence and consistency between the two. The computed results indicate the sensitivity of the pressure distribution to a lean in the stacking axis and a minor alteration in the hub/shroud profiles. Analysis based on a Navier–Stokes solver shows no breakdown of flow within the designed blade passage and agreement with that from a design calculation; thus the flow in the designed turbine rotor closely approximates that of an inviscid one. These calculations illustrate the use of a design method coupled to an analysis tool for establishing guidelines and criteria for designing turbomachinery blading.

Parametric Design of Tapered End Mills with Variable Pitch for Improving Stability

2014 ◽  
Vol 599-601 ◽  
pp. 381-384
Author(s):  
Li Lun He ◽  
Zhi Bing Liu ◽  
Xi Bin Wang ◽  
Wei Wei Lv
Keyword(s):  
Graphical Representation ◽  
Parametric Design ◽  
Design Method ◽  
Three Dimensional ◽  
Mathematical Expression ◽  
End Mill ◽  
Optimal Angle ◽  
Variable Pitch ◽  
End Mills ◽  
Design And Manufacture

For the problems about design and manufacture of the variable pitch tapered end mills, this study proposes a three-dimensional parametric design method of variable pitch mill. Firstly the equation of calculating the optimal angle between the pitch was presented .Considering existing different patches between two cutting edges, helix edge curve and cross-section groove model of tapered end mill were established .Secondly, mathematical expression of ball end teeth for tapered mill was derived, and all points data of tapered mill surface can be determined by established model. Through the graphical representation, the points set are translated into a solid model.

Research and Realization of Digital Design System Wheel Loader Main Reducer

2010 ◽  
Vol 97-101 ◽  
pp. 3403-3407 ◽  
Author(s):  
Quan Zheng ◽  
Li Qing Chen ◽  
Ji Xian Wang
Keyword(s):  
Parametric Design ◽  
Design Method ◽  
Three Dimensional ◽  
Digital Design ◽  
Frame Structure ◽  
Secondary Development ◽  
Design System ◽  
Cad System ◽  
Function Modules ◽  
And Function

By combing the technologies of ASP.NET with secondary development of UG CAD system, a digital design system in main reducer based on B/S and C/S hybrid mode has been built. The system has the functions as optimal design of structure parameter, parts of three-dimensional parametric design and virtual assembly. The frame structure and function modules of the system are discussed in detail. The main reducer digital design system has carried on the confirmation through the concrete example. Compared with the traditional design method, this method upgrades the designing ability and efficiency of the enterprise.

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