Finite Element Analysis applications and high effective methodology developed independently are integrated by adopting modularized structure on the general optimization platform. The work of analyzing structure characteristics, extracting information of nodes, elements, constants, etc, and analyzing the results are completed in FEA applications. And by calling the self-developed optimization method on the optimization platform, optimization calculation is finished.This method sufficiently utilizes the powerful analysis capability of FEA applications and superiority of highly-effective optimization method. Meantime, it avoids re-developing FEA analysis applications in optimization programming, whichenhances optimization efficiency. By taking sugarcane harvester as an example, this method is proved to be effective and practical.

This paper overviewed the prediction methods of forming limit in sheet metal forming, which included forming limit stress diagram, the maximum forming thinning ratio, forming limit diagram and ductile fracture criteria(DFC). Thenthis paper pointed out that DFC could predict the forming limit of metal sheet with low plasticity well and meantime take the change of forming path into account. When adopting FEA to model, DFC could not only apply into incremental approach with a fully coupled elastic and plastic damage model, but to one step inverse approach. To accurately predict forming limit, a criterion to reflect materialperformance in essence was indispensable besides increasing the FEA model accuracy.

Research on test technology of UML-based MAS and its application is carried out. Based on the self-determination of agents and their cooperating relation, taking UML-based specification as crucial reference, by applying deployment diagram, case diagram, collaboration diagram, sequence diagram and state diagram, function test of intelligent agents and agent-integrated cooperating test and MAS test are completed. An illustration of this test in stitch control indicates that this method is general, flexible and high practical.

The working principle of a new kind of magnetic suspension bearing (MSB) was introduced and mathematic model of this MSB system was established by principles of dynamics and electromagnetic. The relation between stiffness dampingand its control system was argued, and through this relation the PID control parameters were determined. Expert-PID controller was developed by utilizing the three parameters of traditional PID controller as the initial parameters of Expert-PID and experiment was carried out on the MSB platform. The results showed that this new control system has satisfactory performance and can suspend quickly and stably under the control of expert-PID.

A magnetorheological damper is designed and manufactured independently. Through the analysis of experiment data and characteristic curves, research on its magnetic magnitude and damper performance was conducted. Then, the advantage of applying this damper in semi-active control is validated. According to the principles of selecting parallel mechanisms in the main mechanism of vibrationabsorber, taking three DOF vibration absorber as an example, the assumption of applying MRD in multi-DIM vibration absorber is put forward. This paper providesdata basis and technical support for the application of this damper in multi-DIM vibration absorber.

By classifying assembly units into “rigid bodies” and “soft cables”, systematic research on methods of assembly simulation for complex systems is conducted from the three perspectives of product modeling, assembly process planning and assembly simulation. Firstly, according to the different features of rigid bodies and soft cables, corresponding modeling methods are proposed, that is, 3D CAD modeling methods for rigid bodies and wiredistribution methods for flexible cables. Then, by taking assembly process as the inverse process of disassembly, assembly process planning method for complex system with soft cables is put forward, in which cable deforming process and its corresponding simulation methods are taken into account. Finally, assembly simulation is carried out basedon assembly process. Illustrations demonstrate that the proposed method can be applied in assembly simulation of complex system with soft cable.

According to the design requirements of cooling mechanism on electronic equipments to reduce volume but increase cooling performance, analysis on cooling performance optimization of heat sinks under air-forced cooling was carried out. Optimization objective function of thermal resistance was established and optimization design of heat sinks under air-forced cooling based on Genetic Algorithms was completed. The optimized geometric dimension and thermal resistance of heat sinks were achieved. The optimization results indicated that volume and thermal resistance could decrease simultaneously.

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In automobile manufacture field, conveying, switching/hanging of car body are the most important chains to realize highly automatic manufacture. Taking PLC as core and adopting Device Net Site General-line Control mode, the testsignals collected on the site are received and the corresponding response can perform action. Conveying car body by utilizing skid conveyor and according to producing process can realize accurate orientation of car body position, achieve automatically switching/hanging of car body, and finally determine the best conveying condition. PLC and on-site General-line Control system greatly enhance theautomatic level of car producing line, reduce working intensity and then increase productivity. This plays a more and more important role in modern industry.

Automatic Hydraulic Tape Leaf Spring Rolling Mill (AHTLSRM) is a special equipment to manufacture automobile leaf spring. The basic composition of AHTLSRM developed independently is presented. Then the control requirement on equipment motion for manufacturing tape leaf spring is analyzed. The electro-hydraulic servo control system adopts two degree computer control system; its mathematical model has been set up and analysis on its dynamic performanceis carried out. After application validation, this equipment has high productivity and strong adaptability.

To enhance expandable ability of expandable screen shell, a circular bellow shell is designed and its expandable ability is analyzed by non-linear FEA method. Result of numerical calculation indicates that this circular bellow shell has small stress but large displacement compensation. The bellow radius has close relation with its expandable ability. The former restricts its expandable symmetrical degree and its easy-manufacture ability. With the increase of bellow radius, expandable force and non-roundness, as well as contact area between sleeve and shell, decrease. The reasonable bellow radius is 8-14 mm. Moreover, thethickness of shell has little impact on expandable force and stress storage coefficient, but it restricts the outside diameter of expandable screen and the size of inside accessory. The reasonable thickness of shell is 12 mm.

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Machine vision principle and currently prevailing last-measure method are introduced. Research situation of machine vision and its advantages and disadvantages as well as its bottleneck in technology are discussed. This paper focuses on the contrast between contact measure, laser scanning, and machine vision. Contact measure has high reliability but low accuracy. Laser scanning has high measuring accuracy and can measure soft and fragile targets; it does not need to compensate the radius of measure head and can cover a larger range. However, laser scanning is easy to be affected by surface optical properties of parts andits price is high. Machine vision can also measure soft and fragile targets; ithas high speed, simple hardware and low price and will not smooth the sharp points of the model. Machine vision is a developing method to measure, and can complete digitization of shoe-last. Comparing to the former two methods, it is moresuitable for customization of shoe-last.

TRIZ inventive principle has universality, and has been applied in different design fields successfully. To guide electrical creative design, according to TRIZ principle, research on application of 40 inventive principles in electrical design field is carried out as well as providing corresponding engineering examples. Then part of the typical examples is classified by the former 20 principles of the 40 TRIZ inventive principles. These examples include a large amount of electrical products and their design process, which can offer inventive principle references on solving contradiction in electrical design for designers. 

According to characters of nonmaterial society, humanized design is analyzed by dividing it into instinct level, behavior level and reflective level.The idea that humanized design in modern society's product design is the integration of these three levels is put forward. Through discussing from the three perspectives that design should fulfill human's demand, make human delightful and offer enjoyment of beauty, the author concludes that in humanized product design, the three levels are indispensable and should be integrated.

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