谐振增压系统中的进气压力波与小振幅波类似,用力学—声学类比方法对谐振增压进行了物理原理的研究,证明了系统的力学品质因素对谐振曲线的形态有重要影响.文中考察了系统各尺寸之间的关系及对压力波初相位的牵制,提出了调整压力波幅值与初相位角的途径.在谐振转速点上肯定得不到最高充气效率,本文给出了缩小两者间差距的有效方法.试验结果证明了理论分析中的结论. The inlet pressure wave in the resonant booster system is similar to the small amplitude wave, and the physical principle of the resonant booster is studied by mechanics-acoustic analogy, which proves that the mechanical quality factor of the system has an important influence on the shape of the resonant curve. The relationship between the size of the system and the initial phase of the pressure wave are investigated, and the way to adjust the amplitude and the phase angle of the pressure wave is proposed.It is impossible to obtain the maximum charge efficiency at the resonance speed point, The effective method of the difference between the two.The test results prove the conclusion in the theoretical analysis.