【摘要】 摘要本文介绍了应用正弦波扫描激振、应力电测对静态、动态的发动机轴系进行了测试与研究,阐明了发动机某些零部件的固有频率特性、阻尼特性、扭振特性对轴系振动噪声的影响以及轴系共振区域的划分,对发动机系统降噪的研究进行了有益的探索.更多还原

【Abstract】 Sinusoidal excitation and electric stress analysis were applied to test the engine shafting both statically and dynamically. The effects of inherent frequency, damping behavior and torsional vibration of some engine components on the vibration noise of shafting was elucidated. The partition of the resonance regions was also discussed.更多还原