Multi-Objective Optimization for Laser Closure Process Parameters in vitro Skin Tissue Based on NSGA-Ⅱ

Jun, 黄俊 Huang; Zibo, 陈子博 Chen; Qimeng, 刘其蒙 Liu; Cong, 李聪 Li; Kehong, 王克鸿 Wang

doi:10.3788/cjl201946.0207001

Cited by 3 publications

(1 citation statement)

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“…It is recognized by the world as a "software robot" that integrates CAD/CAM/CAE and PDM systems. The regression formula and the initial values of the design variables x 1 , x 2 and x 3 are input into the computer, the upper and lower limits of the variable are set, and the NSGA-II algorithm [48,49] is selected to solve all the solutions of Pareto.…”

Section: Spin Forming Response Surface Model and Optimizationmentioning

confidence: 99%

Study on optimization of thermal spinning process of accumulator shell

Zhu

et al. 2020

Mechanics & Industry

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In view of the shortcomings of the existing hot spinning process technology of the accumulator shell, a method for optimizing the multi-spinning process parameters is proposed. The Johnson-Cook constitutive model of the accumulator shell material – 34CrMo4 alloy steel − was established with its parameters obtained experimentally. The finite element simulation was carried out for the hot spinning and closing process. Based on which, three parameters with the greatest influence on the spinning formation were studied: spinning temperature, spindle speed and friction coefficient. Combined with the central composite test, the response surface model and the mapping relationship between the three parameters and the maximum mises stress as well as the maximum wall thickness increment of the shell were established. The Pareto optimized solution set was obtained through multi-objective optimization. Under the condition of not affecting product quality, the optimized solution with low spinning temperature and high spindle speed is selected to reduce energy loss and improve work efficiency. The results indicate that the optimized process is experimentally verified to reduce the process temperature by nearly 30 °C, and the efficiency is increased by 25%.

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Section: Spin Forming Response Surface Model and Optimizationmentioning

confidence: 99%

Study on optimization of thermal spinning process of accumulator shell

Zhu

et al. 2020

Mechanics & Industry

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Experimental study of thermal damage to in vitro skin tissue welding by femtosecond laser

Huang

Xia

Chen

et al. 2023

Infrared Physics & Technology

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Establishment and Calibration of Discrete Element Model of King Grass Stalk Based on Throwing Test

Huan

Wang

et al. 2022

INMATEH

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In order to better use the discrete element method (DEM) to study the cutting and throwing process of King Grass (KG) stalk in mechanical harvesting, the DEM model and contact parameters of KG stalk were studied in this paper. By using the Multi-sphere method, the DEM model of KG stalk was established in EDEM software. Through the impact bounce test and slope sliding test, the stalk-steel coefficient of static friction, stalk-steel coefficient of restitution and stalk-stalk coefficient of restitution were calibrated as 0.372, 0.656 and 0.523, respectively. Based on the stacking test, using the response surface methodology, the optimal values of stalk-stalk coefficient of static friction, stalk-stalk coefficient of rolling friction, stalk-steel coefficient of rolling friction were calibrated as 0.393, 0.072 and 0.144, respectively. The throwing test bench of stalk was designed, and the actual and simulation throwing test were carried out. The relative error of throwing distance in bench test and simulation test under four throwing speeds was 1.15%, 7.76%, 8.88% and 10.46%, respectively. The throwing trajectory curve of the simulation test is consistent with that of the actual test, which verifies the accuracy of the DEM model and contact parameters of KG stalk.

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Multi-Objective Optimization for Laser Closure Process Parameters in vitro Skin Tissue Based on NSGA-Ⅱ

Cited by 3 publications

References 0 publications

Study on optimization of thermal spinning process of accumulator shell

Study on optimization of thermal spinning process of accumulator shell

Experimental study of thermal damage to in vitro skin tissue welding by femtosecond laser

Establishment and Calibration of Discrete Element Model of King Grass Stalk Based on Throwing Test

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