Papers by Keyword: Optimization Design

Abstract: Turnover mechanism is one of the important parts of the element bar conveying subsystem in the aluminum electrolytic capacitor assembling machine (AECAM). This paper analyzed the structure and motion characteristics of the turnover mechanism, and used the ADAMS software to do its parametric modeling, dynamic analysis and optimization design. Finally the paper concluded that Final result of turnover mechanism optimization was that the maximum of resultant force in the cam rotary center decreased by 49.3%.Application of ADAMS software will provide a new way for design and improvement of the assembling machine in future.

Abstract: According to the traditional methods to design the gears in gearbox, the effect of the volume or noise of gears can not be involved. In order to design better gears, this paper used the simple and effective weighting method and considered the three aspects of minimizing the sum of volume of gears, the bending stress in tooth roots and the working noise to design gears. A mathematical model of optimal design of gears was established, where the contact fatigue strength on tooth surface, bending fatigue strength in tooth roots, tooth number, helix angle, big end modulus, overlap contact ratio, tooth width and so on were set as the constraint conditions and the big end modulus, the tooth width, helix angle of tooth width midpoint, and tooth number of the small bevel gear when transmission ratio is given were chosen as the design variables. Finally an example was solved. The results show that the present method can scheme out the gears of lower noise level.

Abstract: An analog design method of PID digital controller for multiple Indicator unified optimization is established, screening the optimal combination of PID parameters using MATLAB simulation value. The paper proposed and established a new PID digital controller analog design method of multi-index optimization. Studies have shown that the method can be used for the sampling period of 1 ~ 5ms PID digital controller Multiple Attribute Decision analog design, and can be used independently,without PID empirical data and other design methods ; provide arepresentative example design, verify the the effectiveness of the method.

Abstract: With more and more governments and organizations taking Carbon Footprint as the measure of greenhouse gas emission, the study about the calculation of carbon footprint has become a hot spot. The paper analyzed the carbon footprint in different stages of a product life circle, including manufacturing, transporting, using and disposing and also studied the part contributing the largest carbon emission. Especially in the calculation of carbon emission of manufacturing stage, recursive call algorithm was applied. The optimization design model of carbon footprint was also depicted. All the work this paper had undertaken facilitates to formulate specific carbon emission reduction measures.

Abstract: This paper is aimed at the situation that the discharge amount of chemical industry wastes is raising rapidly and its treatment is extremely difficult. The advantages and disadvantages of common treatment methods are discussed, and the incineration method has obvious supremacy. The structure of cascade reciprocating incinerator is analyzed, and the burning process is thermodynamically analyzed and optimized by the parameter calculation of grate area, incinerator body height and heat preservation performance of incinerator brickwork. It is concluded that the optimization design of grate can intensify the burning process of wastes and the pollution can be controlled and even eliminated.

Abstract: Mathematical model of the MEMS relay volume involves in mechanical, electrical, magnetic, thermal, etc., the MEMS relay optimization design is a constrained nonlinear function optimization problem. In this paper, aim at the disadvantages of standard Particle Swarm Optimization algorithm like being trapped easily into a local optimum, we improves the standard PSO and proposes a new algorithm to solve the overcomes of the standard PSO. The new algorithm keeps not only the fast convergence speed characteristic of PSO, but effectively improves the capability of global searching as well. Experiment results reveal that the proposed algorithm can find better solutions when compared to other heuristic methods and is a powerful optimization algorithm for MEMS relay optimization design.

Abstract: The situations of insufficient or too much exposure of lights often happen in high-speed vision inspection system. In order to improve the ability to adapt to environment, the feedback and control system is used. If we use the processing method of integral threshold value, the control of light source wont work. Besides, the former feedback system has the stoboflash problem, so optimization design is needed. A new feedback signal extraction method is put forward and the program of source control is optimized, and the adaptability of the diction system to the change of the environment light is improved, it works out the function of controlling the LED light source automatically and steadily under the effects of environment light and the problem of stroboflash.

Abstract: The influence of anode current collector layer (ACCL) thickness is studied for different ACCL porosity and different pitch width. The results shows conclusively that the output current density depends strongly on the ACCL thickness and a suitable choice of the ACCL thickness is very important for the high performance of a SOFC stack. Furthermore, the optimal ACCL thickness is found to be dependent linearly on the pitch width and the parameters for the linearity are given.

Abstract: The transplanting manipulator is one of the key mechanisms of transplanting machine. Many factors have great influence on transplanting effect, which mainly correlated to the clamping force and the speed of the steel inserting the matrix. In this work, the authors present a 3D model of the transplanting manipulator based on the actual requirements, then, conduct the dynamic analysis of the transplant manipulator based on the SIMPACK and find out the unreasonable design according to results of the analysis. Finally, verifying the optimization results by ANASYS. In view of the above, optimize and improve original structure in order to provide theoretical basis for the processing of physical prototype and application.

Abstract: In order to solve design contradiction between high productivity and complexity of the Device，innovation theory TRIZ has been introduced into design process. Using TRIZ theory, a technical analysis of automatic transplanting machine is conducted. Aiming at the agency’s objective function features, innovative solution is achieved by system functional analysis of the institution, and the engineering features and contradiction matrix has been extracted. Through the contradiction matrix table, 40 innovative principles, and 39 engineering parameters of the TRIZ innovation principles, combined with the characteristics of the automatic transplanting machine, innovative design of transplanting mechanism has been made. Shown by the optimization design, the matrix diffusion agency can improve the productivity significantly.