Modelling forest clearing technology with multi-operator machine

Abstract

A conceptual model of a forest multi-operator machine for clearing debris caused by tree mortality is presented. A technological process of sanitary forest clearing that minimizes manual labour with the help of a machine and a winch is considered, including the technology of litter removal with its processing into firewood in the forest. Two variants of multi-operating machine's work with a winch are given: sequential, when the machine processes the wood from the fell as it is received from the winch, and parallel, when the winch and machine work independently of each other. It is established that the productivity at debris removal at parallel operation of the machine and winch is higher by 7...14 % than at their consecutive operation. It is revealed that the productivity of a multi-operator machine when the machine and a winch work in parallel increases by 53...55 %. It is determined that the load of the machine, when working together with a winch, is less than 50 % of working time. It is recommended that the winch and the machine work together at close capacities, if the winch capacity is very different from the machine capacity, then they should work separately.