System Design And Transient Dynamics Research Of Nuclear Waste Crane

In recent years, the nuclear power technology develops quickly, our nuclear power started late, but rapid development. China has entered a period of rapid development of nuclear power, nuclear power station was built in the world in the number of first, The issues how to ensure nuclear safety also enter a new height. Nuclear crane is not the core of the nuclear power station equipments, but is also an important and equipment. So the requirements of design are higher, tighter and safer, and also to give full consideration to the special working environment, special seismic load and other factors, only more rigorous, scientific design in order to ensure the accuracy, reliability and safety of the nuclear power sation cranes.In this thesis, a systematic study on the particularity of the nuclear waste crane, to ensure the crane is safe and reliable, mainly includes the following sections:(1) Elaborated an overview and outlook of the nuclear crane, combined with nuclear waste crane (12.5/12.5t-15.4m) working conditions and workflow, designs the crane hoisting system, load alarm management system, and precise positioning control system (the BPS, the laser positioning and the lighting aids).(2) FTA is a safety system engineering analysis methods, around the load falling down, fault tree graphic track the failure factors, in order to identify weaknesses and fault spectrum. In addition, it should be considered a single incident emergency system, to ensure the crane can complete a step back to the repair station in the expected accident.(3) the establishment of crane bridge in ANS YS to check the strength and stiffness; the seismic response of structure based on the time-history analysis method, select two seismic waves samples (El Centro Site seismic waves, Taft Lincoln Scholl seismic wave) and an artificial simulation of seismic wave, by the simulation of seismic response to obtain any node’ stress and strain, to assess the earthquake resistance of the crane structures.In summary,through the improved design of positioning control system of nuclear waste crane, fault tree analysis of cranes and earthquake resistance studies of the bridge, the results have reference values for the remote operation and automated crane design, it’s important to improve the riding quality and reliability of crane.