基于满意度原理的铁路新线纵断面优化设计方法

New-railway Longitudinal-section Optimization Design Method Based on the Satisfactory Degree Principle

在分析铁路新线纵断面选线知识特点的基础上,提出基于满意度原理的铁路新线纵断面优化设计方法,并给出计算模型和算法。该方法以综合满意度函数反映设计者对工程性能指标和运营性能指标的评价,从决策准则、搜索算法的停止准则和解的评价过程准则方面综合考虑,通过对工程满意度、运营满意度、整饰满意水平、整饰满意度、满意收敛准则概念的引入,提出满意整饰思想,并结合实例给出完整的满意优化求解思路。该方法是铁路勘测设计智能化系统的重要组成部分。实例分析表明此原理和方法是有效的。

By analyzing the features of the knowledge structure in railway longitudinal-section design, this paper presents a new approach to the optimization of the railway longitudinal-sectlon design based on the satisfactory degree principle and also introduces the computing model and algorithm for this optimization method. A general satisfactory degree function is defined to evaluate the performance of the design in respect of engineering and operation. Considering the decision-making guide line, searching algorithm guide llne and appraising process guide llne comprehensively, and introducing in the concepts of the engineering satisfactory degree, operation satisfactory degree, modification satisfactory level, modification satisfactory degree and satisfactory convergence principle, this paper puts forward the thinking of satisfactory modification and gives the solution to complete satisfactory optimization in combination with a practical example. This optimization method is one of the important parts of the railway location intelligent system. The analysis of the example shows that the theory and method are effective.