KCF Technologies, Inc. Testing and Analysis for On-Highway Wheel Vibration

Since the first extensive vibration study of EQUAL in 1997, a series of laboratory experiments and road tests have been performed to assess the ability of the product EQUAL to reduce tire vibration for a variety of vehicles, axle loads, and rotational speeds. The laboratory tests show that EQUAL consistently reduces the vertical (Z-direction) vibration magnitude at the fundamental frequency (1/rev). In the tests the average disturbance reduction compared to dual plane balanced wheel assemblies was 29 % in on-vehicle acceleration dynamometer testing and 55 % in fixed axle dynamometer testing. The road and test track measurements show that EQUAL consistently reduces the overall vibration magnitude in a variety of vehicles.