Auxiliary capacitor to enhance oscillation in circuit and reduce current onset delay in HiPIMS discharge: Theory, experiment and simulation

2021 ◽  
Vol 405 ◽  
pp. 126518
Author(s):  
Mingyue Han ◽  
Yang Luo ◽  
Hua Li ◽  
LiuHe Li ◽  
Ye Xu ◽  
...  
Keyword(s):  
Onset Delay ◽  
Experiment And Simulation

Experiment and Simulation of Erosion Behavior and Deformation Characteristics in Al6061-T6 Beam Due to Rhomboid Particle Impacts

2021 ◽  
Vol 69 (3) ◽  
Author(s):  
Mingchao Du ◽  
Zengliang Li ◽  
Xiangwei Dong ◽  
Chunyong Fan ◽  
Jiaqi Che ◽  
...  
Keyword(s):  
Deformation Characteristics ◽  
Erosion Behavior ◽  
Experiment And Simulation

scholarly journals Design and thermal characteristic analysis of motorized spindle cooling system

2021 ◽  
Vol 13 (5) ◽  
pp. 168781402110208
Author(s):  
Yuan Zhang ◽  
Lifeng Wang ◽  
Yaodong Zhang ◽  
Yongde Zhang
Keyword(s):  
Flow Rate ◽  
High Speed ◽  
Thermal Deformation ◽  
Cooling System ◽  
Thermal Characteristic ◽  
Water Flow Rate ◽  
Thermal Characteristics ◽  
Characteristic Analysis ◽  
Motorized Spindle ◽  
Experiment And Simulation

The thermal deformation of high-speed motorized spindle will affect its reliability, so fully considering its thermal characteristics is the premise of optimal design. In order to study the thermal characteristics of high-speed motorized spindles, a coupled model of thermal-flow-structure was established. Through experiment and simulation, the thermal characteristics of spiral cooling motorized spindle are studied, and the U-shaped cooled motorized spindle is designed and optimized. The simulation results show that when the diameter of the cooling channel is 7 mm, the temperature of the spiral cooling system is lower than that of the U-shaped cooling system, but the radial thermal deformation is greater than that of the U-shaped cooling system. As the increase of the channel diameter of U-shaped cooling system, the temperature and radial thermal deformation decrease. When the diameter is 10 mm, the temperature and radial thermal deformation are lower than the spiral cooling system. And as the flow rate increases, the temperature and radial thermal deformation gradually decrease, which provides a basis for a reasonable choice of water flow rate. The maximum error between experiment and simulation is 2°C, and the error is small, which verifies the accuracy and lays the foundation for future research.

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