한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)
- 제11권4호
- /
- Pages.38-46
- /
- 1994
- /
- 1225-9071(pISSN)
- /
- 2287-8769(eISSN)
연속계 해석에 의한 보오링 바의 동적 거동에 관한 연구
Dynamic behavior of boring bar with continuous system analysis
- 김정석 (부산대학교 정밀기계공학과, 기계기술연구소 정밀정형 및 금형가공 연구센타) ;
- 강명창 (부산대학교 정밀기계공학과 대학원) ;
- 박수길 (부산대학교 정밀기계공학과 대학원)
- Kim, Jeong-Suk ;
- Kang, Myeong-Chang ;
- Park, Soo-Kil
- 발행 : 1994.08.01
초록
The vibration amplitude of boring bar is generally large at the tool tip, because it has the high length-diameter(L/D) ratio. A new dynamic cutting force model is presented by considering the change of shear angle under dynamic cutting. The boring bar is modelled as a cantilever with dynamic force acting at the tool end point. Based on this realistic continuous system model, the equation of motion of borring bar is solved by numerical computations. A good agreement is found between the proposed model and the experimental results.