Study on application of fuzzy set methodology for evaluation of quality of cultivating machines on forestry-hilly land

Fuzzy-set methodology is a new hierarchical fuzzy methodology with multi-grade estimation that helps to identify the quality in the design and manufacture of forestry machinery. The pare has introduced a set of criteria for use in the evaluation of the quanlity in the design and manufacture of cultivating and processing machines. Fuzzy methodology has been applied for simultaneously general comparison of the criteria-based on operators' experiences and relate experts' observations - that may affect the manufacture quality of machines used in foretry cultivation and processing. This helps to provide a more comprehensive overview on the design and manufacture of machines for use in forestry cultivation. Results from the study show that, the operation characteristics and economic efficiency in the area of design-manufacture of machines used in forestry cultivation and processing that need to be concerned.