Optimization Design Study Of The High Speed Maglev Railway's Some Technical Standards

The high speed maglev railway is a new-style traffic system. Along with the high speed maglev technique's improved increasingly, more and more people pay attention to the feasibility of building the long trunk line of maglev railway, so the choice of main technical standards, as the key of its layout and design, is becoming one of the decision-making problems which need be laid a strong emphasis on. The thesis takes the new Beijing-Shanghai high speed maglev railway as the imaginary study object, using the thought of comprehensive optimization design and the theory of technique economics, establishes a set of simple and feasible design methods which used to optimize three technical standards.Firstly, the basic principium and technical composing of German TR high speed maglev system are systematically discussed, and its technical and economic characteristics are analyzed.Secondly, the premises and conditions for establishing the target function that the thesis needs are analyzed,and the target value of speed, the space between of transformer substations and the space between of switch substations are choosed as the design variables.Thirdly, basing on the influence of the target value of speed on the demand of passenger transport, the investment of fixed facilities, the expense of vehicles and the expenditure of running, taking total investment of the project as the target function, the thesis builds up the dynamic state mathematical model of the target function;then solves the target function by compiling the computer program, and gets the optimum design value of speed target;then carries on optimization design study of the space between of transformer substations and the space between of switch substations under the restriction of the optimum design value of speed target, and gets their optimum values.Lastly, the deficiencies and directions of further study are brought out.