자동차 배기관의 비접촉 진동 측정

다국어 초록 (Multilingual Abstract)

In this work, the vibration of an automobile exhaust system is measured by using a recently-developed magnetic sensor. The magnetic sensor is composed of a solenoid and two pairs of permanent magnets generating an antisymmetric magnetic field in the lateral direction inside the solenoid. Lateral movement of a ferromagnetic pipe inside the magnetic field of the suggested sensor induces an electromotive force in the solenoid corresponding to the lateral velocity of the pipe. Due to the simplicity and non-contact characteristics of the magnetic sensor, dynamic behaviors of the structures operating under high temperature such as an exhaust pipe can be efficiently observed. It is shown that the lateral vibration of the exhaust system can be successfully measured by the suggested sensors. The Campbell diagram of the exhaust system is plotted to examine the vibration characteristics of the exhaust system.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 자기센서의 원리
• 3. 엔진 구동 시 배기계의 진동 특성
• 4. 결론
• 참고문헌