Laboratory for Dynamics of Machines and Structures 
Characterisation of vibrations and structural noise of suction unit's cover

Diploma thesis, LADISK, Faculty of Mech Eng, Univ of Ljubljana, June 2007
The work studies vibrations of suction unit's cover and its relation with generated structural noise. Existing suction unit's cover is designed only considering geometrical requirements. Results of experimental modal analysis of cover's vibrations and local structural noise and cover's numerical modal analysis tent to suggestion of cover's new shape. New measuring method of local structural noise is introduced.