회전기기 결함모사 테스트베드를 이용한 정상/결함 데이터

ㅇ 한국산업기술시험원이 축적/가공한 방사성 방해전압(>1GHz) 시험결과 데이터입니다.ㅇ 전자파 적합성(EMC, Electromagnetic Compatibility)이란 전자기기에서 방출되는 전자기노이즈로 인해 다른 전자기기에 간섭을 주지 않도록 전자기노이즈의 방출량을 규격에서 정한 레벨 이하로 관리하고(EMI, 전자기간섭), 외부의 강한 전자기노이즈 환경에서도 전자기기의 성능이 유지될 수 있도록 관리하여(EMS,전자기내성) 전자기적합성을 확보하기 위한 시험입니다.ㅇ 품목별 해당하는 규격 및 시험방법을 알 수 있고 시험 부적합 사례를 분석하여 제품 제조에 있어 안정성을 높이는데 도움이 될 수 있습니다.

An experiment was set up at the University of Tennessee Knoxville (UTK) to test methods for estimating the cutting forces in real time within machine tools for any spindle speed, force profile, tool type, and cutting conditions. Before cutting, a metrology suite and instrumented tool holder were used to induce magnetic forces during spindle rotation, while on-machine vibrations, magnetic forces, and error motions were measured for various combinations of speeds and forces. A model may then relate the measured accelerations to the forces, such that during cutting, on-machine measured vibrations may be used in the model to estimate the cutting forces in real time. To test this process, the metrology suite and the instrumented tool holder were removed, except that the on-machine accelerometers remained. A dynamometer was then set up on the worktable with a workpiece to independently measure cutting forces during machining. Various cutting passes were performed with different mills while the dynamometer data and accelerometer data were collected. Even though considerable research has been conducted to estimate cutting forces with accelerometers and measured FRFs, one main challenge remains: a method must be created to estimate the cutting forces in real-time for any spindle speed, force profile, tool type, and cutting conditions. This dataset can be used to develop or advance such methods for industrial adoption.