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

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.

2014 ◽  
Vol 599-601 ◽  
pp. 517-521
Author(s):  
Lin Wang ◽  
Ming Fu Yin

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.


2019 ◽  
Vol 11 (16) ◽  
pp. 4416 ◽  
Author(s):  
Do Young Kim

In this study, a design methodology based on prototyping is proposed. This design methodology is intended to enhance the functionality of the test, differentiating it from the prototyping that is being conducted in conventional architectural design projects. The objective of this study is to explore reference cases that enable designers to maximize the utilization of both digital models and physical models that have been currently used in architectural designs. Also, it is to explore the complementary roles and effects of digital models and physical models. Smart Building Envelopes (SBEs) are one of challenging topics in architectural design and requires innovative design process included tests and risk management. A conceptual prototyping-based model considering the topic is applied to the design studio (education environment in university). Designing SBEs is not difficult to conceive ideas, but it is impossible to “implement” using the conventional design method. Implementing SBEs requires to strengthen validities and improve responsibilities of ideas in the stages of architectural designs, with cutting-edge technologies and smart materials. The design methodology enables designers (represented by students) to apply materials and manufacturing methods using digital models (parametric design, simulation, BIM) and physical models, rather than representing vanity images that are considered simple science fiction.


2012 ◽  
Vol 159 ◽  
pp. 18-22
Author(s):  
Rui Song Jiang ◽  
Xin Fa Chen ◽  
Da Yong Feng ◽  
Feng Jun Wang

In this study, a novel structure design method based on knowledge template was prompted. The notion and construction methods of knowledge template were introduced. Moreover, the knowledge template based design process was represented. The knowledge templates of investment casting die bases of turbine blade were established and a design system for die base was developed. The system provides designers with a semi-automated approach for the die base design. Finally, several sample applications for investment casting die base of turbine blade were presented for demonstration.


Author(s):  
Владимир Аверченков ◽  
Vladimir Averchenkov ◽  
Алексей Вилюха ◽  
Alexey Viluykha ◽  
Михаил Рытов ◽  
...  

The article deals with the design process of low-frequency rectangular electrical connectors and determining the position CAD/CAE-systems in it. The review of the actual literature shows that development trends of design and technological preparation of low-frequency rectangular electrical connectors production mean using CAD/CAM/CAE-systems. But at the moment these systems are used for solving partial issues. The authors formalize the empirical method of the design and systemize the factors, which influence the design process. As a result of the mentioned above actions, the working algorithm of the multipurpose CAD/CAE electrical connectors design system was obtained. The results of the research were applied to automize the design process of connectors housings.


CCIT Journal ◽  
2018 ◽  
Vol 11 (2) ◽  
pp. 182-191
Author(s):  
Musthofa Galih Pradana ◽  
Bondan Wahyu Pamekas ◽  
Kusrini Kusrini

Diabetes mellitus is a chronic metabolic disorder caused by the pancreas that does not produce enough insulin, so the body works to be disturbed. But by knowing the symptoms that exist, prevention of diabetes mellitus disease can be done as early as possible with the help of expert systems.One method of expert system used to diagnose symptoms of Diabetes Mellitus is Certainty Factor. The process undertaken in this research starts from literature studies, system design, system implementation and the last is testing the system. In the system design process is done by designing the database required by the expert system and also design the system interface design. After the design process is done then the next step is to implement the design into an expert system application. By using this method, the system gives results of possible symptoms experienced, presentation of beliefs, and treatment solutions based on the facts and the value of confidence given by users in filling out questions that have been given by the system.The results of this system are used to help medical personnel and patients in order to identify the symptoms of diabetes mellitus


2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Fong-Gong Wu ◽  
Chii-Zen Yu

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.


2010 ◽  
Vol 156-157 ◽  
pp. 396-399
Author(s):  
Zhi Hua Sha ◽  
Cui Cui Chen ◽  
Sheng Fang Zhang ◽  
Zheng Liu ◽  
Jun Feng Mao

As the core of automotive welding production line, the development speed and quality of automotive welding jig impact on the automobile production cycle and manufacturing precision directly. At present, the traditional design method of automotive welding jig is difficult to adapt to the developing speed of auto body. In order to improve the design efficiency of the welding jig, a rapid automobile welding jig design method based on parametric technology is developed in this paper. Supported by parametric theory, combining with CATIA secondary development approach, the principle and structure of the automobile welding jig rapid design system are presented, and related key technologies in rapid design system developing are studied deeply, and a rapid welding jig parametric design system is developed finally. Taking one station of rear side member for example, the generation process of automotive welding jig is analyzed in detail, and design practice shows: the welding jig designed by this system has shorter development cycle then the traditional method.


2014 ◽  
Vol 945-949 ◽  
pp. 73-76 ◽  
Author(s):  
Yi Lin Wang ◽  
Geng Yun Wang

This paper describes an automated design system for trimming die structure. Considering the complexity of trimming dies, a modular design method was used to define module’s functions and determine the design processes of trimming dies. Through analyzing the relationship of structure and function of trimming dies, the systematic analysis of modularization for trimming dies is achieved from assembly-level division. By using parametric design method, the internal connection between modules is analysis from part-level division, and the module-based design process of complex part is accomplished. The CAD system for trimming dies is developed on platform of UGNX software. The application results show the high efficiency and design flexibility.


2013 ◽  
Vol 712-715 ◽  
pp. 1189-1193
Author(s):  
Yan Hong Yang ◽  
Xiang Qiang Zhong

The parametric design and second development flow of panel furniture are analyzed based on Pro/E and modular design method. It created manage database of panel furniture based on SQL2000 and ADO technology, it analyzed synchronous development mode of Pro/TOOLKIT, menu design and DLL dynamic link library development were talked, the parametric design system of hall cabinet, bedside cabinet and wardrobe under VC ++6.0 development environment was developed. Throng example program verification, the method is feasible; it can rapidly finish panel furniture models, and improve the designer's working efficiency.


2013 ◽  
Vol 834-836 ◽  
pp. 1432-1435
Author(s):  
Yu Yang

Traditional agricultural machinery design methods usually go through longer-design cycle and can hardly make good use of existing knowledge and experience. In view of this problem, parametric design theory and knowledge-based engineering were applied to the disc-scoop-type metering device designed to improve the design experience and reuse design knowledge. Through the knowledge-based parametric design method, the design framework model of disc-scoop-type metering device was put forward. The knowledge library on the basis of design rules and characteristic similarity-based case library were created, and disc-scoop-type metering device parametric design system based on knowledge had been developed on the platform of Pro/Engineering. The rapid design for knowledge-driven model of disc-scoop-type metering device was realized. The specific design examples clearly indicated that the establishment of the system considerately improved the quality and efficiency of the design.


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