关键词: 可适应性, 果园运输小车, 信息熵, 改进的TOPSIS, 评价方法

Abstract: In order to improve the adaptability of orchard transport machinery, an adaptability evaluation system of the product system is established. This paper analyzes the functional requirements and functional independence based on the perspective of user requirements with the framework of AD theory as a guide. The design parameters to achieve the adaptive functions are separated out by the mapping of functiondesign parameters in the design process, and the evaluation model of the variability of agricultural machinery is constructed. Quantitative description of the variational degree of each adaptive design parameter is made based on the information entropy theory and improved TOPSIS method, and the variability evaluation of adaptive design parameters is used to meet the diverse user needs, and improve the adaptability evaluation of product ontology and product platform. The proposed method is applied to the design of a model of orchard transport cart, and the evaluation results of the design solutions are obtained: The relative closeness of solution 1 (motor leveling solution) is 0.246, and that of solution 2 (hydraulic cylinder leveling solution) is 0.18. The results show that the system adaptability of solution 1 is better than that of solution 2, which verifies the feasibility of the adaptability evaluation system, and the evaluation method can provide theoretical guidance for the development and optimization of agricultural machinery and equipment.

Key words: adaptability, orchard transport trolley, information entropy, improved TOPSIS, evaluation methods