Vibration and Noise Control Laboratory

     Vibration and Noise Control Laboratory was founded in 1985. In 2010, it was renamed Institute of Vibration and Noise Control. Currently, there are 8 full-time staff, including 1 professor and 6 associate professors.

     Institute of Vibration and Noise Control has an area of 551 square meters. There are 20 devices and the overall value exceeds4 million yuan. In the 1950s, the Institute focused on the design of vehicle running gear, mechanical equipment, and vibration/noise reduction of vehicles. After decades of development, its research interests included special vehicles, running gear of tracked vehicles, wheeled vehicle suspension systems, vibration/noise reduction of mechanical equipment, vibration/ noise control of mechanical equipment, man-machine and ergonomic, theory and application of dynamic vibration absorption and vibration isolation, structural vibration and system dynamics analysis, materials and devices for vibration and noise reduction, mechanical dynamic testing, mechanical equipment fault diagnosis, etc. A lot of work has been done on the design, strength analysis, finite element calculation, vibration, noise experiments and dynamic analysis of carriers, especially for armored vehicles and spacecraft carriers.

    The Institute completed a number of key pre-research projects for military vehicles from the seventh Five-Year Plan to the twelfth Five-Year Plan, national defense 973 project, National Natural Funds, corporate research projects about automotive, aerospace, engineering machinery and other fields. Among them, the semi-active suspension technique that have been applied to military vehicles is at the leading position in the world and can be directly applied to various kinds of special vehicles and traveling construction machinery. The performance of this technology is equivalent to the leading international products. While traveling in complex scenarios, the body can be lifted, adjusted, locked, and the damping adjustment can adaptively change according to the vehicle condition, which can effectively reduce the vibration of vehicle body and improves the comfort and off-road capability of the vehicle. In the eleventh Five-Year Plan, the semi-active suspension product for tanks have been successfully commercialized. The vehicles equipped with the proposed technique participated in the Tiananmen Military Parade in 2009 and the project team won the third prize for scientific and technological progress in national defense. At present, the Institute is mainly engaged in the research of semi-active and active suspension technologies for vehicles, special vehicle design, various types of traveling construction machinery design, three-dimensional CAD design and personnel training, vehicle suspension design, vehicle vibration, damping and noise reduction, mechanical dynamics calculation and analysis, mechanical and hydraulic fault diagnosis and other aspects of research work. The number of publicly-published papers reached 80, of which 42 papers have been included in SCI/EI (6 in SCI and 36 in EI).

    The courses given by the Institute of vibration and noise control span 2 first class disciplines, which are vehicle engineering in mechanical engineering and man-machine and environmental engineering in the aeronautical and aerospace discipline. The teachers of the Institute undertake the teaching work of undergraduate courses, including modern vehicle experiment, basic mechanical vibration, man-machine and environmental engineering, microcomputer principle, vehicle suspension technology and postgraduate courses including modern test technology, advanced vibration theory, engineering mathematics, etc.

Fig. 1 MTS road simulation test system owned by the laboratory

(Note: The vehicle road simulation experiment, vehicle vibration analysis, road surface spectrum reproduction, and vehicle vertical dynamics experiment verification can be performed. The single-wheel thrust of the vehicle road simulation test system can reach 14 tons, the stroke is more than 400mm, and the maximum excitation frequency can reach 100Hz.)

Fig. 2 Suspension component experiment system

(Note: Vehicle suspension component experiments can be testing. The stiffness properties of air, oil-gas, and coil springs, as well as the damping characteristics of hydraulic shock absorbers, were widely investigated. The thrust of a single-wheel suspension component test system can reach 13 tons and the stroke is 300mm. Frequency up to 80Hz.)

Fig. 3 Intra-elbow vane suspension developed by the Institute

(Note: The technology reaches the international advanced level. Large range of continuous damping adjustments can be achieved. The shock absorber working temperature is raised from 383.15 K to 433.15 K and the shock absorber life has been improved by 100%. The technology is now applied to a military vehicle.)

Fig. 4 Research project test

(Note: The horizontal topics of the Institute include the design and manufacture of controllable components for suspension systems, suspension design of engine systems, vehicle modal experiments, multi-body simulation, and modal numerical analysis. The cooperation partners include automobiles, aerospace, construction machinery and other fields.)