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作 者:李岳[1] 周则圆 蔡靖[1,2] LI Yue;ZHOU Zeyuan;CAI Jing(College of Transportation Science and Engineering,Civil Aviation University of China,Tianjin 300300,China;Intelligent Construction and Industrialization Engineering Technology Research Center of Civil Aviation Airport,Tianjin 300456,China)
机构地区:[1]中国民航大学交通科学与工程学院,天津300300 [2]民航机场智能建造与工业化工程技术研究中心,天津300456
出 处:《北京航空航天大学学报》2025年第3期705-711,共7页Journal of Beijing University of Aeronautics and Astronautics
基 金:国家自然科学基金(52472369);中央高校基本科研业务费专项资金(3122019103);民航机场智能建造与工业化工程技术研究中心开放课题(MHJGKFKT-01,MHJGKFKT-04)。
摘 要:针对飞机轮胎滑水问题影响因素多、评价指标具备随机模糊与离散性特征问题,基于联系云可拓理论建立滑水风险评价模型,定量描述滑水评价指标在不同分类等级之间的转换态势。根据评价指标分级标准确定联系云数字特征,生成有限区间内联系云,由云相关度构建联系云可拓矩阵,结合变权权重综合评定最终风险等级,表征待评价物元与风险等级之间的动态联系;依托飞机轮胎滑水流固耦合仿真获得案例分析数据,弥补经典滑水试验工况变量条件少的不足。分析结果表明:传统正态云模型与可拓联系云模型对滑水事件样本1和样本3评价结论一致;对于样本2,由所提方法计算滑水风险等级为Ⅲ级,同等参数条件下风险控制标准更严格,上述样本风险评价置信因子均小于0.01,评价可信程度较高;所提分析模型为多重不相容指标的随机模糊及不确定性分析提供了可能,克服了正态云模型无法有效模拟指标在有限区间内分布的缺陷。Since aircraft tire hydroplaning can be influenced by several factors,and the characteristic of evaluation indexes can be described as fuzzy,random,and discrete,a hydroplaning risk evaluation model based on extension theory and connection cloud was established,so as to quantify the transformation of hydroplaning evaluation indexes among different classification levels.The numerical characteristics of the connection cloud were calculated according to the leveling criteria of evaluation indexes,and the connection cloud within a limited range was generated.The extensible matrix of the connection cloud was built by using certainty degrees.In this way,the final risk level could be obtained on the basis of variable weights,which demonstrated the dynamic connection between elements to be evaluated and risk level.The case analysis data was obtained by the fluid-solid coupling simulation of aircraft tire hydroplaning to make up for the lack of variable conditions in the classic hydroplaning test.The analysis results show that the evaluation conclusions of sample 1 and sample 3 are consistent based on the traditional normal cloud model and extensible connection cloud model.The hydroplaning risk level of sample 2 is given as Ⅲ by using the proposed model in this paper.Therefore,the risk control is considered more restrict under the same parameter condition.The confidence factor of the above sample risk assessment is less than 0.01,and the credibility of the evaluation results is high.The proposed model in this paper provides an alternative method for random-fuzzy and uncertainty analysis involving multiple incompatibility indexes.Hence,the defect of the normal cloud model in simulating the distribution of evaluation indexes within a limited range can be overcome.
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