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자동차 칵핏 모듈용 시편 소재의 열화 조건을 고려한 이음(Rattle) 발생 특성에 관한 시험적 고찰
양정민(Jeongmin Yang),이철현(Chulhyun Yi),조진호(Jinho Cho),이원구(Wonku Lee),우창수(Changsu Woo) 한국소음진동공학회 2014 한국소음진동공학회 학술대회논문집 Vol.2014 No.10
It is treated more seriously than ever as the customer requirements are becoming a high-quality and diversification. Among the various elements to affect customers evaluation of automobile quality, BSR(buzz, squeak, rattle noise) are considered to be a mostly contributing factor. Rattle Noises in cockpit modules are one of the major concerns mentioned above. Recently, measurements of the BSR noise between the parts that make up the products from the perspective that the structural causes. For structures that make up material has not been any consideration of the BSR noise characteristics. The aim of this study is to clarify the characteristics of noise occurrence in vehicle cockpit module that consist of plastic material after measuring noise by rattle special testing instrument.
패키지트레이 차일드앵커 커버의 래틀 소음 개선을 위한 실험적 연구
양정민(Jeongmin Yang),이철현(Chulhyun Yi),이상익(Sangik Lee),도현철(Hyuncheol Do),김영환(Younghwan Kim) 한국자동차공학회 2019 한국자동차공학회 학술대회 및 전시회 Vol.2019 No.11
Increasing amount of automotive technological innovation is driving manufactures to strengthen their NVH performance than ever before. To effectively test and evaluate NVH performance of automotive parts many NVH measuring techniques are under development. One of which is testing for BSR noise. BSR is induced by micro-interactions between vibrating automotive parts that cause discomforting noise to the driver. Unlike NVH issues, due to its intermittent behavior of BSR noise, the best approach to manage BSR is to eliminate its source than try to decrease its noise level. The BSR improvement discussed in this paper is about BSR noise becoming apparent after changing the design of child anchor attached to the package tray. Functionally the part had no problem, yet rattle noise had been developed over time. This paper proposes analyzing and eliminating the problematic noise source through experimental study to enhance noise performance.
자동차 전장용 내고장성 프로세서 기반 차량용 네트워크 CAN 2.0 A, B, FD 통합 IP 설계 및 검증
양정민(Jeongmin Yang),권영수(Youngsu Kwon),신경선(Kyoung-Sun Shin),한지호(Jin-Ho Han),변경진(Kyung-Jin Byun),엄낙웅(Nak-Woong Eum) 대한전자공학회 2015 대한전자공학회 학술대회 Vol.2015 No.6
CAN (controller area network) is a widely used network protocol standard for the automotive applications connecting ECUs and electric devices with low complexity and low cost. In this paper, we describe the implementation and verification procedure of the first CAN 2.0 A, B, FD integrated IP, CAN-ETRI 2.0, based on Fault-Tolerant Vehicle Processor, ALDEBARAN.
자동차 칵핏 모듈용 시편단위의 소재별 Squeak Noise 특성에 관한 시험적 고찰
양정민(Jeongmin Yang),김성배(Sungbae Kim),이철현(Chulhyun Yi),조진호(Jinho Cho),이원구(Wonku Lee) 한국소음진동공학회 2015 한국소음진동공학회 학술대회논문집 Vol.2015 No.4
It is treated more seriously than ever as the customer requirements are becoming a high-quality and diversification. Among the various elements to affect customers evaluation of automobile quality, BSR(buzz, squeak, rattle noise) are considered to be a mostly contributing factor. Squeak noises in cockpit modules are one of the major concerns mentioned above. Recently, measurements of the BSR noise between the parts that make up the products from the perspective that the structural causes. For structures that make up material has not been any consideration of the BSR noise characteristics. The aim of this study is to clarify the characteristics of noise occurrence in vehicle cockpit module that consist of plastic material after measuring noise by squeak special testing instrument.
모듈 단위 열화조건을 고려한 자동차용 칵핏 모듈 이음(BSR Noise)에 대한 시험적 고찰
이철현(Chulhyun Yi),양정민(Jeongmin Yang),조진호(Jinho Cho),이원구(Wonku Lee),우창수(Changsu Woo) 한국소음진동공학회 2014 한국소음진동공학회 학술대회논문집 Vol.2014 No.10
In this paper, in order to impart the aging condition of the parts, by configuring the cycle of temperature from low temperature was performed by applying the aging conditions for vehicle cockpit module. The reason for the selected modules of the cockpit vehicle parts, because the joint occurrence typical components of the room component is a first module and ceiling cockpit module. After setting the excitation profile using the BSR exciter only that this is for the module degradation after the initial and grasp the change in the dynamic characteristics of the modules based on the before and after deterioration may be made in the module, grasp the noise generating position I measured the noise and proximity. Was also visualized on the position of the joint is generated using a sound camera to objective results occurring where the joint is selected through subjective evaluation.
자동차용 칵핏 모듈의 이음(BSR Noise) 재현을 위한 시험적 고찰
이철현(Chulhyun Yi),양정민(Jeongmin Yang),조진호(Jinho Cho),이원구(Wonku Lee),우창수(Changsu Woo),최재민(Jaemin Choi) 한국자동차공학회 2014 한국자동차공학회 부문종합 학술대회 Vol.2014 No.5
Among the Vehicle components, BSR Noise generating components typical is the first module of the headlining and cockpit modules. In this paper, among the BSR Noise generating components typical, I studied the way of visualization and reproduction of BSR Noise generated in the cockpit module. BSR Noise evaluation method in the component units of the existing, BSR Noise Measuring the excitation forces are using the jig with the caliber of the dedicated attached in an actual car, and constitutes a profile of the excitation force for each frequency, I was using the method that is input to the caliber of the BSR Noise only. In this study, the dynamic of the cockpit module of profiles that are conventionally used I have configured the signal that reflects the characteristic frequency. For component using a profile that is configured as described above It has to measure the proximity and noise figure of BSR Noise generation position throughout the tests subjective assessment, the noise visualization using sound camera Was objectively the results of noise generation position of the subjective assessment by proceeding.
자동차용 칵핏의 모듈 단위에서 발생되는 Rattle 소음의 특성에 대한 시험적 고찰
이철현(Chulhyun Yi),양정민(Jeongmin Yang),조진호(Jinho Cho),이원구(Wonku Lee),정현주(Hyeonju Jeong) 한국소음진동공학회 2015 한국소음진동공학회 학술대회논문집 Vol.2015 No.4
In this paper, among the indoor component of a vehicle, and is obtained by experimentally studied Rattle characteristics of the vibration and noise of the noise is a typical joints generated through the evaluation of the cockpit module units. Was constructed a profile used to perform the evaluation of these vehicle cockpit module units. The profile is measured vibration characteristics of the running conditions of the cockpit module is mounted on the actual vehicle, for the progress of the evaluation is performed by each module, and measured natural frequency to reflect the characteristics, structure was. And using the configuration profile, and the noise to about that is sporadically generated yet locally in the cockpit module to configure a list of the noise generated through subjective evaluation of the subject, the objective for the location I was using the visualization device. Was measured proximity noise and surface speed of the Rattle noise occurrence position of which is being grasped by the visualization results.