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A Method of Determining Rail Grinding Parameters Based On Life-Cycle Cost
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The factors affecting the economy efficiency of rail grinding and their interrelation are researched. Based on the
management theory of life-cycle cost, the model of analyzing rail grinding parameters is established, the calculation method
is determined, and minimizing the rail life-cycle cost is regarded as optimization objective for the optimal analysis of grinding
factor. The results prove that with certain parameters (grinding interval and mental removal), the total present value of rail
cost tends to decrease firstly and then increase with the increase of rail service life. With the increase of the grinding interval,
the total present value of rail cost also tends to decrease firstly and then increase, and there is an extreme point in the variation
tendency. In the economic cost of rail service life, rail replacement and waste of railway taking-up cost are two of the biggest
parts. Therefore, reasonable rail maintenance strategy plays a significant role in reducing life-cycle cost.
Bentham Science Publishers Ltd.
Title: A Method of Determining Rail Grinding Parameters Based On Life-Cycle
Cost
Description:
The factors affecting the economy efficiency of rail grinding and their interrelation are researched.
Based on the
management theory of life-cycle cost, the model of analyzing rail grinding parameters is established, the calculation method
is determined, and minimizing the rail life-cycle cost is regarded as optimization objective for the optimal analysis of grinding
factor.
The results prove that with certain parameters (grinding interval and mental removal), the total present value of rail
cost tends to decrease firstly and then increase with the increase of rail service life.
With the increase of the grinding interval,
the total present value of rail cost also tends to decrease firstly and then increase, and there is an extreme point in the variation
tendency.
In the economic cost of rail service life, rail replacement and waste of railway taking-up cost are two of the biggest
parts.
Therefore, reasonable rail maintenance strategy plays a significant role in reducing life-cycle cost.
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