The invention discloses a broadband noise suppression structure of a pneumatic tire, which is characterized in that a plurality of resonator assemblies are arranged in an annular tire cavity formed by the tire and a rim, and the resonator assemblies are mounted on the surface of the rim; each resonator assembly comprises a single-cavity resonator and a double-cavity resonator which are both Helmholtz resonators; the single-cavity resonator is composed of a resonator cavity and a communicating hole, and the tire cavity is communicated with the resonator cavity through the communicating hole; the double-cavity resonator comprises two resonator cavities and two communicating holes, one communicating hole is used for communicating the tire cavity with the corresponding resonator, and the other communicating hole is used for communicating the two resonator cavities. The Helmholtz resonators are connected in series and in parallel, secondary peaks generated by the single-frequency Helmholtz resonators are further reduced, tire cavity resonance noise is reduced in a wider frequency range, and a good noise reduction effect is achieved.
本发明公开了一种充气轮胎宽频噪音抑制构造,其特征是:在由轮胎和轮辋形成的环形轮胎空腔内设置若干共振器组合体,共振器组合体安装在轮辋表面;各共振器组合体包括单腔共振器和双腔共振器,均为亥姆霍兹共振器;单腔共振器是由一个共振器空腔和一个连通孔构成,其连通孔将轮胎空腔和共振器空腔相连通;双腔共振器包括两个共振器空腔和两个连通孔,其中一个连通孔将轮胎空腔和相应的共振器相连通,另一连通孔将两个共振器空腔相连通。本发明将亥姆霍兹共振器进行串并联组合,将单频亥姆霍兹共振器产生的次级峰进一步降低,实现了在更宽频范围内降低轮胎空腔共振噪声,达到很好的降噪效果。
Broadband noise suppression structure of pneumatic tire
一种充气轮胎宽频噪音抑制构造
2021-06-18
Patent
Elektronische Ressource
Chinesisch
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