起重机综合评价系统研究与实现

发布时间：2018-04-12 13:22

本文选题：起重机 + 指标筛选　；参考：《大连理工大学》2012年硕士论文

【摘要】：起重机是工程建设中广泛使用的重要设备,对保证工程建设顺利进行有着重要作用。近年来,随着工程机械行业的发展,起重机产品型号和品牌不断增加,如何选择最合适的起重机成为广大用户关心的问题。要做出正确的决策首先要对起重机产品进行客观的评价,对起重机的评价往往针对其综合性能,而起重机的性能体现在多个方面,考虑的指标较多,评价具有一定的复杂性。因此,研究起重机指标体系及评价方法,利用科学的评价方法得到客观、合理的评价结果,具有重要的现实意义。本文在了解各类起重机的性能参数的基础上,针对起重机综合评价的特点,从指标体系的建立、指标权重的确定、评价模型的应用等环节出发,展开了系统的研究,探索适合起重机产品评价的综合评价方法,并开发起重机综合评价系统,将起重机的综合评价方法利用软件的方式实现和应用。在现有工程机械方面产品评价指标体系的基础上,根据起重机评价指标的特点,结合指标筛选的理论方法,提出定量分析方法,分析指标之间的相关性和指标的区分能力,并结合定性分析,得到分层的指标体系。然后将指标体系的构建方法应用到汽车起重机综合评价指标体系的建立中。分析现有的权重确定方法,为解决熵权法在应用中存在的问题,提出改进的熵权法,并通过分析和实例应用证明改进方法的合理性。利用向量贴近度代替Spearman秩相关系数来反映不同赋权方法所得结果之间的一致性程度,并考虑到决策者的偏好,研究基于决策者偏好和赋权结果一致性的组合赋权法。分析在TOPSIS法综合评价中“垂面”距离相对于欧式距离的优点,将组合赋权法应用在改进TOPSIS法综合评价的权重确定中,应用评价实例验证改进TOPSIS法综合评价模型的合理性和实用性。开发起重机综合评价系统,将本文的综合评价方法集成到系统中,通过应用实例证明了评价结果的合理性和系统的实用性。
[Abstract]:Crane is an important equipment widely used in engineering construction, which plays an important role in ensuring the smooth progress of engineering construction.In recent years, with the development of construction machinery industry, crane product models and brands continue to increase, how to choose the most suitable crane has become a problem of concern to the majority of users.In order to make correct decision, it is necessary to evaluate the crane product objectively. The evaluation of crane is usually based on its comprehensive performance, but the crane performance is reflected in many aspects, and the evaluation has some complexity.Therefore, it is of great practical significance to study the index system and evaluation method of crane, and to obtain objective and reasonable evaluation results by using scientific evaluation method.On the basis of knowing the performance parameters of all kinds of cranes, this paper starts with the establishment of index system, the determination of index weight, the application of evaluation model and so on, aiming at the characteristics of comprehensive evaluation of cranes.This paper explores a comprehensive evaluation method suitable for crane product evaluation and develops a crane comprehensive evaluation system. The comprehensive evaluation method of crane is realized and applied by software.On the basis of the existing evaluation index system of construction machinery products, according to the characteristics of crane evaluation index and combining with the theoretical method of index screening, the quantitative analysis method is put forward, and the correlation between indexes and the ability of distinguishing indexes are analyzed.Combined with qualitative analysis, a hierarchical index system is obtained.Then, the construction method of index system is applied to the establishment of comprehensive evaluation index system of truck crane.In order to solve the problems existing in the application of entropy weight method, an improved entropy weight method is put forward, and the rationality of the improved method is proved by analysis and practical application.Vector closeness degree is used instead of Spearman rank correlation coefficient to reflect the degree of consistency among the results obtained by different weighting methods. Considering the preference of decision makers, a combined weighting method based on the consistency of decision makers' preferences and weighted results is studied.This paper analyzes the advantages of "vertical plane" distance relative to Euclidean distance in TOPSIS comprehensive evaluation, and applies the combined weighting method to determine the weight of improved TOPSIS comprehensive evaluation.The rationality and practicability of the improved TOPSIS comprehensive evaluation model are verified by an evaluation example.The comprehensive evaluation system of crane is developed and the comprehensive evaluation method of this paper is integrated into the system. The rationality of the evaluation results and the practicability of the system are proved by an application example.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH21

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