유전알고리즘을 이용한 인버터 DC 저항점용접에서의 정전류퍼지제어기 최적화
- Authors
- 유지영; 윤상만; 이세헌
- Issue Date
- Oct-2010
- Publisher
- 대한용접접합학회
- Keywords
- Resistance spot welding; Fuzzy control; Genetic algorithm; Constant current; Scaling facto
- Citation
- 대한용접접합학회지, v.28, no.5, pp.99 - 105
- Indexed
- KCI
- Journal Title
- 대한용접접합학회지
- Volume
- 28
- Number
- 5
- Start Page
- 99
- End Page
- 105
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/172644
- ISSN
- 2466-2232
- Abstract
- Inverter DC resistance spot welding process has been very widely used for joining such as automotive body sheet metal. Because the lobe area of DC welding is larger than AC welding and DC welding has low electrode wear. So the use of Inverter DC resistance spot welding process has been further increased.
And the application of high tensile steel is growing for light weight vehicle. To improve the weldability of high strength steel, the development of Inverter DC resistance spot welding system is more conducted.
However, Inverter DC resistance spot welding system has a few problems. Current waveform is unstable and the expulsion has been occurred by characteristics of steel. In this study, inverter DC resistance spot welding system was made. And Fuzzy control algorithm was applied for constant current. The genetic algorithm was applied to optimize the fuzzy scaling factors, in order to optimize the fuzzy control.
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