Analysis of the Crankshaft Speed Fluctuation in Intra-Cycle

사이클 내 크랭크축 각속도의 변동 해석

  • Published : 1996.03.01

Abstract

This paper presents the characteristics of the crankshaft speed fluctuations. To analyze them, the speed waveforms were measured both at the flywheel and at the front end of the engine. The speed waveform measured at the flywheel shows better result than at the front end one, because of the torsional vibration and the auxiliary components. And the patterns of the speed fluctuations are classified into three region, such as low load, middle load and high load region with the variations of the loads. Additionally, as the engine speeds increase and the loads decrease, the analysis of the speed becomes more difficult due to lower variation of the speed. And in all the regions, the main frequency component of the speed fluctuation is firing frequency.

Keywords

References

  1. SAE Paper No. 930397 Measurement and Analysis of Intra-Cyclic PRM Changes Jacques Davaine
  2. Lubr. Eng. v.45 Error Analysis of Time-Dependent Fricitional Torque in Reciprocating Engines:Effect of Angular Velocity Measurement Apostrolos N. Fragoulis;Angelo H. Nichols;Maeim A. Henein
  3. 서울대학교 기계공학과 석사학위논문 크랭크축 각속도의 변동을 이용한 실화 판정 배상수