Influence of Fiber-Reinforced Composite Wheel Resonance on tire cavity noise
Regular paper
Tsinghua university
Tuesday 2 june, 2015, 09:40 - 10:00
0.2 Berlin (90)
Abstract:
Tire cavity noise is a kind of tonal noise with a frequency spectrum close to 220Hz,
and it can be heard clearly inside the vehicle compartment, which is a phenomenon
generated by resonance of the acoustic cavity inside the tire-wheel assembly due to
the excitation of tire/road. There are lots of factors related to tire cavity noise,
such as the dimension and structure of the tire and the wheel etc. As the critical
component of transmitting the pressure of tire cavity resonance, the wheel has a very
important influence on tire cavity noise by the coupling with cavity resonance. This
study just focuses on the effects of fiber-reinforced composite wheel resonance on
the
tire cavity noise. A simple analytical model is proposed to interpret the coupling
mechanism between tire cavity noise and the structural vibration of fiber-reinforced
composite wheel taking into account the characteristic of composite materials, and a
numerical simulation is conducted to validate the model. In addition, effects of both
fiber-reinforced composite wheel and metal wheel on tire cavity noise are
investigated, and the results show that the wheel made of fiber-reinforced composites
contributes less to the cavity noise than that of the metal wheel.