Optimization Design of Flash Structure for Forging Die Based on Kriging-PSO Strategy

Author(s):  
Yu Zhang ◽  
Zhiguo An ◽  
Jie Zhou
2012 ◽  
Vol 602-604 ◽  
pp. 1869-1873
Author(s):  
Lei Fu ◽  
Li Lin

On the basis of analyzing the process of supporting bar forging conform, the 3D solid geometries modeling of billet and die were constructed by SOLIDWORKS software, the distributions of die stress and contact stress on the process of supporting bar forging conform were analyzed by using DEFORM-3D program. The working life of the die punch was assessed. The die structure was optimized based on the simulation results, and the forging defect of the improved work piece could be well controlled and the die working life was improved to about 10%.


2020 ◽  
Vol 64 (1-4) ◽  
pp. 165-172
Author(s):  
Dongge Deng ◽  
Mingzhi Zhu ◽  
Qiang Shu ◽  
Baoxu Wang ◽  
Fei Yang

It is necessary to develop a high homogeneous, low power consumption, high frequency and small-size shim coil for high precision and low-cost atomic spin gyroscope (ASG). To provide the shim coil, a multi-objective optimization design method is proposed. All structural parameters including the wire diameter are optimized. In addition to the homogeneity, the size of optimized coil, especially the axial position and winding number, is restricted to develop the small-size shim coil with low power consumption. The 0-1 linear programming is adopted in the optimal model to conveniently describe winding distributions. The branch and bound algorithm is used to solve this model. Theoretical optimization results show that the homogeneity of the optimized shim coil is several orders of magnitudes better than the same-size solenoid. A simulation experiment is also conducted. Experimental results show that optimization results are verified, and power consumption of the optimized coil is about half of the solenoid when providing the same uniform magnetic field. This indicates that the proposed optimal method is feasible to develop shim coil for ASG.


2005 ◽  
Vol 42 (5) ◽  
pp. 1375-1375 ◽  
Author(s):  
Shinkyu Jeong ◽  
Mitsuhiro Murayama ◽  
Kazuomi Yamamoto

Author(s):  
Sai-jun LV ◽  
Long-yang DAI ◽  
Long-yang DAI ◽  
Hong-geng ZHU

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