In this study, the TRIZ methods were used to solve the main cause of the ink splashing phenomenon in a tattoo machine. To solve the ink splashing phenomenon that occurs when a tattoo machine is operated, a flow analysis of the needle unit was performed using ANSYS CFX V14.5. From the flow analysis result, it was confirmed that the ink splashing phenomenon of the tattoo machine can be supplemented by the hole leading to the outside to the needle unit of a tattoo machine. In order to diagnose the natural frequencies of the tattoo machine and the resonance phenomenon caused by the excitation of the motor, the natural frequency analysis was performed using the Abaqus/standard frequency analysis technique. From the results of the natural vibration analysis, it was confirmed that no resonance occurred. It is expected that it will contribute to improve the efficiency of the semi permanent cosmetic device with removable ink cartridge.

ABSTRACT
 1. 서 론
 2. 개념설계 및 기본구성
 3. TRIZ 기법을 통한 성능개선
 4. 바늘유닛부에서의 유동해석
  4.1 유동해석 방법 및 모델링
  4.2 유동해석 결과
 5. 진동해석
 6. 결 론
 References

• 이창열(Automotive Engineering Dep't, Gyeongnam National University of Science and Technology) | Chang-Ryeol Lee
• 김봉환(Automotive Engineering Dep't, Gyeongnam National University of Science and Technology) | Bong-Hwan Kim Corresponding Author
• 박용택(HNC Co., Ltd.) | Yong-Taek Park