高层建筑客梯运行状况的仿真

THE OPERATING STATUS SIMULATION OF ELEVATOR IN HIGHRISE BUILDINGS

为了评估高层建筑中所配置的电梯是否满足要求,需要研究电梯的运送能力。本文提出了应用计算机动态仿真于客梯运行状况研究的方法。客梯系统是一个典型的离散型随机服务系统。选择了评估系统的指标:高峰运行时乘客的平均等待时间及乘客等待客梯运送的最大排队长度。表征客流状况的单位时间内乘客到达数是一个重要的随机变量。讨论了它的概率分布。根据其泊松分布的特性,可以算出乘客到达的时间间隔及客梯每上下一次运行所需的时间。在这个基础上,采用了下次事件推进法进行持续的仿真。所提出的客梯系统的动态仿真法不仅可以获得其它估算方法所不能获得的仿真结果,并可进一步推广到电梯群控系统。本文以单台客梯为例,给出了仿真程序框图。

In order to evaluate whether the elevators fitted in a highrise building can meet the requirment,it is necessary to estimate thetransport capacity of these elevators.This paper presents a computersimulation method.The elevator system is a typical discrete randomservice system.For this system,average waiting time and maximumqueue length of passengers waiting for elevator are selected as criteriaof evaluation.The quantity of arriving passengers in unit interval ischaracteristic of passenger flow and an important random variable.Itsprobability distribution discussed in this paper is Poisson distribution.According to this characteristic,passerger arrival interval and round triptime of elevator can be calulated.Therefore,the next event time advancemethod can be used to simulate this system.This method can give othersimulated results which can not been given by other rough estimatingmethod,and it also can be used for a set of elevater.