Changchun, 13 July, 2009 - Sonus, a leading NVH engineering firm in China, today announced the successful completion of the Wuzheng project. Through vibration testing, modal analysis and CAE analysis on the cab, frame, powertrain and whole vehicle under various conditions, measures have been provided to improve the structural design, minimize the transmission of vibration from the frame to the cab, thereby resolving the problems in the vertical and horizontal vibration of the truck at 30-50 km/h.



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