Research On The End Reaction Of The Fan Brigh Truss

There are many regions in the world which are rich in coal resources but poor in water resource, so undoubtedly, it is extremely difficult to establish thermal power plants in these areas. Because of the advantages of low cost, operation mode, water saving, and convenient and reliable comprehensive benefits, the direct air-cooled condenser technology has been brought into production in many areas mentioned above. The domestic and abroad research of air-cooled condenser system is abundant, but the research on the structure is scarce. As we all know, the fan bridge of the air-cooling system produces various complex disturbances which act on the bridge directly and force it to vibrate, then this vibration transfers to the air-cooled platform through the support, and finally make the whole air-cooled condenser structure system endure force.However, how much is this applied force? What are the related factors? Could it be calculated by a simplified measure? These questions have not been solved well yet.In consideration of this issue, this paper uses the ANSYS finite element analysis software to proceed numerical simulation on the fan bridge truss model, conduct the modal analysis and time history analysis on it, and research on the characteristics of the end reaction of the fan bridge truss when the fan is operating.After doing a lot of calculations, this paper proposes a simplified disturbance input measures for calculating the vibration of the power-plant bridge, then by changing parts of the parameters, we get the law that the end reaction changes along with the construction parameters.Finally. I proposes a simplified measuring method of the end reaction which is convenient for the practical application to provide references for the designing of the air-cooled condenser structure system, conduct the practice of the engineering, and promote the Independent designing of the air-cooled condenser system.