Design Of Electromechanical Products Research Articles

Tolerance design of electromechanical products based on self-defined approximate model

Influenced by the uncertain factors in the manufacturing process, the output characteristics of electromechanical products inevitably deviate from the target value, resulting in the uneven quality of batch products. Generally, tolerance design based on a large number of input-output data is used to improve the quality consistency of batch products. As for electromechanical products, the output characteristics are usually obtained by the finite element method (FEM). However, FEM is so time-consuming that it is difficult to be applied to the tolerance design process. In this paper, a new tolerance design process based on approximate model is proposed. The period of tolerance design is greatly shortened. Firstly, a self-defined approximate model based on Taylor expansion principle is established. Then based on this model, the tolerance design with variable contribution rate is carried out. Finally, Monte Carlo method is used to compare the quality consistency of batch products before and after optimization. The accuracy and effectiveness of the method proposed in this paper are verified in the case of a certain type of electromagnetic relay (EMR).

Application of Decision Making Algorithm for Green Electromechanical Product Design Optimization

Green products are considered to be the only way for human beings to follow the strategy of sustainable development. They have become one of the hotspots of modern design, manufacture and consumption. A green design method of electromechanical products based on case-based reasoning is presented in this paper. This paper puts forward and uses a “EW&AHP fusion technology” to scientifically determine the index weight, and uses multi target decision-making method to design the index system, establish the evaluation optimization algorithm model of green electromechanical product design scheme, and comprehensively evaluate and optimize the green product design scheme from the aspects of economy, technology and green. Sort, provide decision support for production and operation of related enterprises. The results show that the algorithm can not only give full play to the role of the data itself, but also fully reflect the green requirements of the green electromechanical products, and also give consideration to the profit goal of the enterprise.

AHP, Gray Correlation, and TOPSIS Combined Approach to Green Performance Evaluation of Design Alternatives

The green design of electromechanical products is a pivotal link to manufacturing industry. The question on how to design green products must be answered by excellent designers using both advanced design methods and effective assessment techniques of design alternatives. Making an objective and precise assessment of green designs is of increasing importance to ensure sustainable development. This work proposes a framework based on the combination of analytical hierarchy process (AHP), gray correlation (GC), and technique for order performance by similarity to ideal solution (TOPSIS) to evaluate the performance of design alternatives. AHP is used to determine the weights of performance indices and a nonlinear programming model with constraints is proposed to obtain the integrated closeness index based on the similarity closeness index from GC and distance closeness index from TOPSIS. A case study, i.e., three kinds of refrigerators, is illustrated to verify the proposed method. By comparing with existing methods, i.e., AHP-TOPSIS and AHP-GC, the effectiveness of the proposed method has been confirmed. In addition, sensitivity analysis is also provided in order to assess the robustness of the proposed method. Also, the following implication can be obtained from our results: 1) chloro–fluoro–carbons (mg/ $\text{m}^{3}$ ) (C1), production noise (dB) (C6), and environmental cost (C16) have a large impact on refrigerator’s green design since these factors carry relatively larger weights. Results of the sensitivity analysis from different cases demonstrate that the best alternative may change when different weights are assigned to the evaluation criteria. This finding means the importance of establishing a qualified group of experts/designers in design evaluation and 2) the selection of design alternatives to produce a green product is critical to product development. The main contribution of this paper is the definition and development of an effective evaluation framework to guide managers to assess product design alternatives. The results show that it overcomes the one-sidedness of AHP-TOPSIS and AHP-GC, and makes the evaluation results more objective and realistic. It provides an accurate, effective, and systematic decision support tool for green performance evaluation of product design alternatives.

Research on Green Electromechanical Product Design Based on Disassembly

Green electromechanical product is the core which protects the environment and resources. Design for disassembly is the main content of green electromechanical product design. Traditional electromechanical product design is chief considerations the effective use of assembly and material. It is not consideration the waste processing, and is an open-loop system. When it creates wealth for the mankind, electromechanical product produce a lot of wastes, and Cause a large number of resources waste. At present, the waste disposal costs are more increasing. Mechanical manufacturing enterprises have pay attention to effectively implement the recycling and reuse of materials. Green m electromechanical product disassembly is an important content of green design. In the product design stage, enterprise must put disassembly as design objective, considers product future reuse, efforts to improve the mechanical parts of the disassembly rate, form a mechanical product life cycle in closed-loop system. In this way, enterprises not only can save materials and energy, but also can reduce the pollution of environment.

Green design assessment of electromechanical products based on group weighted-AHP

Manufacturing industry is the backbone of a country’s economy while environmental pollution is a serious problem that human beings must face today. The green design of electromechanical products based on enterprise information systems is an important method to solve the environmental problem. The question on how to design green products must be answered by excellent designers via both advanced design methods and effective assessment methods of electromechanical products. Making an objective and precise assessment of green design is one of the problems that must be solved when green design is conducted. An assessment method of green design on electromechanical products based on Group Weighted-AHP (Analytic Hierarchy Process) is proposed in this paper, together with the characteristics of green products. The assessment steps of green design are also established. The results are illustrated via the assessment of a refrigerator design.

The Safety Design of Electromechanical Products

Along with the rapid development of science and technology, the safety of electromechanical products caught our more and more attention. Combining the factors of human and object in the design, this paper puts forward the safety design methods of electromechanical products, including designing the reliable products system, preventing incorrect operation design, creating the safety and pleasant interaction mode and the color and so on. It provides general safety design principle and method for electromechanical products, in order to prevent and reduce the accidents, to create the safe working conditions for users, and to ensure that the modern production runs smoothly.

Research on the Design of Electromechanical Product Based on Interaction

The informatization of manufacturing industry brings new requirements to the industrial design of electromechanical products with high degree of automation and high intelligence. One of the central design concerns is to guarantee reliability of the interactions between the operators and the products working in non-transparent conditions, and at the same time to provide pleasant user experience. Starting from the user’s behavior patterns and psychological needs, the paper analyzed human-machine interaction system of electromechanical products and the design principles of its constituent, and the suitability of the interactive environment of electromechanical products was provided.

Wiring of Cables Based on Virtual Prototyping

Wiring of cables is very important in the design of electro-mechanical products. Whereas, there is not an effectual virtual wiring method for the moment. Aimed at the problem, a virtual wiring is expatiated in this paper. Virtual layout design is achieved based on human-computer interaction, which is verified by virtual assembling. Geometrical modeling of cables, the precision of which is quite high, is established based on energy-optimized method. The characteristic of virtual assembling to the products, which make up of cables and other parts, is discussed. Especially, the assemble technique programming and transformation simulating of cables are studied. In the end, the wiring is actualized on a product, intention to validate the feasibility of the method.

Research of Conceptual Design of Electromechanical Products Based on KBE

This document proposes a method of conceptual design of electromechanical products based on KBE(knowledge-based engineering), in order to improve the efficiency of the conceptual design about electromechanical products and avoid the repetitive work of the traditional design, then establishes a system model for that. it completes the conceptual design of products through data mining, rule-based reasoning and other key technologies. A case of reducer design shows that the method is feasible and practical for the conceptual design of electromechanical products.

Development of a framework for using TRIZ in a co-disciplinary design environment

The work that is described in this report consists of creating a framework for facilitating the use of TRIZ in analysing and solving mono- and co-disciplinary design issues during design of electromechanical products at a large company in the Netherlands. Guidelines have been developed that serve as a strategy for implementation of this framework against the background of (co-disciplinary) design issues. The guidelines are based on interviews with employees from different disciplines and lessons learned from a previous attempt at introducing TRIZ. Both for the development of the framework as well as for the testing thereof intensive case studies were used. As the case studies contain many company proprietary details they cannot be depicted in this article. Consequently the paper will remain focussed on the framework developed.

Knowledge Support Technology of Creative Design for Electromechanical Products

It has been discussed in this paper that the necessity of knowledge support technology used in creative design of electromechanical products. In order to apply knowledge support technology to creative design of electromechanical products, a relation matrix has been constructed by QFD (Quality Function Deployment) technology between the various performances of electromechanical products and the involved knowledge of them. Thus, the HOQ (House of Quality) about the knowledge–performance of electromechanical products is built. Then, the further demand tracking has been made as well. After that, it has been established that the knowledge model and knowledge application process used in creative design of electromechanical products. Finally, a new method has been proposed which can guide designers to do product creative design by knowledge demand.

Collaborative development using EMProDS: The electromechanical product design system

Among manufactured products, electromechanical devices are something of a special case, requiring input at the earliest design stage of experts from two (or more) distinctly separate branches of engineering. This tends to promote a modular approach under which products are partitioned by function, with each module being either purely electrical or purely mechanical. However, customers' demands for smaller lighter, less expensive items with greater functionality force manufacturers to produce integrated systems. Furthermore, modules which function optimally in isolation may not produce an optimal assembly. This paper describes an alternative approach to the conceptual design of electromechanical products, in which a software tool promotes the communication of ideas and opinions. EMProDS provides an easy-to-use distributed design environment, meant to preserve as far as possible the intent of the design team—an aspect of design which can easily be lost once detailed computer aided design drawings are made. This makes any redesign activity which is required simpler and eliminates a common source of conflict between specialists with different technical backgrounds.

1103 設計情報共有・早期性能検証によるロバスト設計手法と支援システムの確立 : ハードディスク設計の事例(OS04-1/コラボレーション・コンカレント設計(1))(OS04/コラボレーション・コンカレント設計)

Design information sharing among diverse engineers and early performance evaluation are essential for the efficient design of electromechanical products. To address these issues we have proposed a methodology of rapid design and concurrent engineering using physical representation models based on mainly lumped parameter systems. To facilitate the practice of this method by designers, we have developed a tool that consists of the following three modules: 1. Design Information Editor, 2. Mathematical Simulation Engine, 3. Pre-processor for Design of Experiment (DOE). In this paper, feasibility of this tool is evaluated in the Hard Disk Drive (HDD) development processes including robust design and factorial effects analysis of the actuator parts, and advantages of this tool and effects to improve the design efficiency are reported.