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Bicycle suspension test stations
Volánka, Lukáš ; Růžička, Bronislav (referee) ; Mazůrek, Ivan (advisor)
This work deals with the design of a bicycle suspension testing station. Currently, new suspension technologies are still being developed, especially for mountain bikes, which are intended for very rough terrain. For this development of new technologies, it is necessary to have a suitable station that enables experimental verification of driving characteristics, ideally in laboratory conditions. The key features that can be evaluated in a bike are riding comfort and grip. The designed station uses a cylindrical road simulator placed under the tested suspension (wheel). Speed bumps are placed on the cylinder of the simulator, which excite vibrations in the bike when passed over, which simulates driving on a bumpy road. At the station, it is possible to evaluate the properties of the front and rear suspension, while the bicycle is always clamped to the station by the axis of the untested suspension. During the tests, the riders weight is replaced by additional weights placed on a rack that connects the seat and head tube of the bike. The additional weights can be moved to imitate different positions of the cyclist while riding. A virtual dynamic model was created for the test station, which makes the experiments much more efficient. The simulation model was designed and tested in MSC Adams software. The test station together with the virtual model forms a simple tool that enables quick and efficient testing of the quality of bicycle suspension.
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