ABSTRACT
Rubber-buffers can be analysed concerning different aspects. Static and acoustic properties as well as durability are essential topics. In this case, acoustic issues will be discussed. Rubber-buffers have a simple geometry compared to suspension mounts. Rubber-buffers are analysed experimentally and by simulations. The simple geometry makes the understanding of general aspects concerning damping and isolation simpler. A harmonic force excites cylindrical and waisted rubber-buffers and accelerations are measured on a rod-structure in the front and in the back of the rubber-buffer to calculate damping and isolation properties. By this means, a frequency response analysis is done. A data analysis program calculates mechanical impedance, the amplification and transmission loss of different buffer types. An analytical model displays the frequency response with good accordance to the experiment. Rubber-buffers of cylindrical and waisted geometry are compared concerning their damping and isolation properties in dependence of the frequency. The rubber-buffer type with the best isolation and damping properties is pointed out.
