港口机械的经济效益及经济寿命分析

Analysis of Economic Effect and Economic Life of Port Machinery

对港口营运效益及技术改造进行评价,都牵涉到经济效益分析的问题,本文论述了港口机械经济效益的评价必需考虑机械整个寿命内的各种经济因素,并试图从系统分析的角度出发,对机械寿命周期内的经济效益进行定量分析,探讨了单机经济效益计算的数学模型以及求其经济寿命的途径,最后对叉车的经济寿命进行了实例分析。

Appraisal of the operation effect and technical reform at ports involves an alysis of the economic effect of port machinery. This paper describes the var ious economic factors during the whole machine life which must be taken into account when the economic effect of port machinery is evaluated. From the angle of system analysis, this paper analyses quantitatively the economic effect in the machine life cycle, discusses both the mathematical model of economic effect calculation of individual machines and the approaches to working out the ir economic life. In addition, this paper analyses a practical example of the economic life of fork lift trucks.