Tyre testing轮胎试验

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Tyre testing轮胎试验

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Investigation of tyre comfort

Tyre spring rate measurement
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Devices for measuring tyre spring rate are classified depending on the following criteria:
•        Time-variation of tyre applied forces:
o        static measurement;
o        dynamic measurement;
o        both type measurement.
•        Direction of applied force:
o        vertical (radial);
o        longitudinal;
o        lateral.
•        Part of device that is moving:
o        tyre hub;
o        contact surface.
The test rig for measuring static vertical spring rate of passenger tyre and the vertical force transducer are shown, respectively, in figure 1 and figure 2 [1]. The test rig consists of several subassemblies: wheel attachment, loading system, measuring systems for vertical displacement and force.
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