동적 해석 및 시험을 이용한 운전석 시트 프레임의 충격 안전성 평가 (Impact Safety Evaluation of Driver Seat Frame Using Dynamic Analysis and Testing Method)

서지정보

· 발행기관 : 한국기계가공학회
· 수록지 정보 : 한국기계가공학회지 / 23권 / 12호 / 117 ~ 123페이지
· 저자명 : 조규춘

초록

In this study, a sled test specified by FMVSS regulations was conducted to evaluate the strength of seatstructures and the behavior of the dummy. A hybrid 50% male dummy was used, and the sled test wascarried out under the condition that chest deflection remains below 76 mm when the seat belt is installed.
The test acceleration was set to 38g, and the firing speed was 64 km/h. The deformation behavior of theseat and dummy was analyzed. The test results showed no dummy ejection or structural failure of the seat,indicating satisfactory strength. Additionally, a finite element analysis was performed to simulate the behaviorof the seat belt and dummy, and the results were compared with the physical test. The simulation showedsimilar acceleration history to the test; however, there were differences in the timing of the seat structuredeformation and the strain values. These differences are attributed to structural coupling and shockwavepropagation characteristics in the test and simulation. In conclusion, this study confirmed the strength of theseat structure and the stability of the dummy. It was also observed that there were differences in responsetime and peak strain values between the test and simulation. However, behaviors of the test and simulationdummy show similar results, the simulation results can be considered valid.

영어초록

In this study, a sled test specified by FMVSS regulations was conducted to evaluate the strength of seatstructures and the behavior of the dummy. A hybrid 50% male dummy was used, and the sled test wascarried out under the condition that chest deflection remains below 76 mm when the seat belt is installed.
The test acceleration was set to 38g, and the firing speed was 64 km/h. The deformation behavior of theseat and dummy was analyzed. The test results showed no dummy ejection or structural failure of the seat,indicating satisfactory strength. Additionally, a finite element analysis was performed to simulate the behaviorof the seat belt and dummy, and the results were compared with the physical test. The simulation showedsimilar acceleration history to the test; however, there were differences in the timing of the seat structuredeformation and the strain values. These differences are attributed to structural coupling and shockwavepropagation characteristics in the test and simulation. In conclusion, this study confirmed the strength of theseat structure and the stability of the dummy. It was also observed that there were differences in responsetime and peak strain values between the test and simulation. However, behaviors of the test and simulationdummy show similar results, the simulation results can be considered valid.

참고자료

· 없음