EQ-140型运材车经济使用年限的研究

›› 1993, Vol. 29 ›› Issue (6): 569-572.

• 研究简报 • Previous Articles

STUDY ON ECONOMICAL SERVICE LIFE OF EQ-140 LOGGING TRUCK

Qiu Rongzu

Fujian Forestry College, Nanping 353001

Received:1992-11-09 Revised:1900-01-01 Online:1993-11-25 Published:1993-11-25

Abstract

Abstract: A mathematical model to caculate the economical service life of EQ-140logging truck is established by means of trial caculation. The result showsthat the economical service life is 3.7 years when the purchase cost of a newtruck is $50000 and the interest is 8%;and the averaye cost does not changeobviously when the service life is 3.7 to 5 years; the higher the purchase costof a new truck is, the longer the economical service life is When the purc-base cost between $40000 and $60000, the economical service life is from3.3 to 5.1 years.

Key words: Economical service life, Logging truck, Mathematical model

Qiu Rongzu. STUDY ON ECONOMICAL SERVICE LIFE OF EQ-140 LOGGING TRUCK[J]. , 1993, 29(6): 569-572.

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STUDY ON ECONOMICAL SERVICE LIFE OF EQ-140 LOGGING TRUCK

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