Acoustical laboratory for vibration noise testing of vehicle power transmission system

• Main Authors: LIU SHUANGXI, GAO HAIYANG, YU YILONG, GAO JIDONG, CHEN DALIANG, GU CANSONG, GAO HUI, LI HONGLIANG
• Format: Patent
• Language: Chinese; English
• Published: 19.11.2019
• Subjects: BUILDING; BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; CEILINGS; FENCING; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; INSULATION OR OTHER PROTECTION OF BUILDINGS; MASTS; MEASURING; PHYSICS; ROOFS; SWIMMING OR SPLASH BATHS OR POOLS; TENTS OR CANOPIES, IN GENERAL; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR; WALLS, e.g. PARTITIONS

The invention provides an acoustical laboratory for vibration noise testing of a vehicle power transmission system. The acoustical laboratory comprises a semi-anechoic room and a modular movable soundinsulation structure; two dynamometer rooms are arranged on the left side and the right side of the semi-anechoic room correspondingly; sound absorption components are laid on the inner wall of the semi-anechoic room, and the semi-anechoic room is provided with a passage gate with sound absorption and insulation functions; and the modular movable sound insulation structure comprises that wall-penetrating groove holes are formed between inner layer concrete walls on the left side wall and the right side wall of the semi-anechoic room and outer layer brick walls of the corresponding dynamometerrooms, and a plurality of detachable sound insulation modules are laid in the wall-penetrating groove holes. The acoustical laboratory for vibration noise testing of the vehicle power transmission system aims to provide a sem