This paper describes the project overview,the design of the cold source,air-conditioning,ventilation and smoke extraction system,as well as the design of air distribution simulation,sound attenuation and vibration isolation.

Effect of glass fiber fineness on the sound insulation property of glass fabric/PVC composite material;

The inversed prediction of each member area in composite wall under the sound insulation requirement;

Sound insulation character of three-layer panels one with elastic porous material;

And the sound isolation of composite structures consisting of multilayer Pb-soft rubber and steel-butadience acrylnitrile rubber(NBR) is presented.

The paper analyzes and takes the gauge of the main factors of the paranormal noise from the workshops, and introduces the synthesizing measures of reducing the noise by using the noise control techniques such as sound isolation, sound absorb, installing of the cover for isolating noise and so on.

The reinforced steel sheet rigidity,damping,sound isolation and sound absorption,different vibration absorber structure and other technologies were comprehensively applied to design the engine sound isolation cover.