Jiarong Zhang, Hao Lu, Hui Jiang, Yun Miao, Zhiyuan Shi
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引用次数: 0
Abstract
The reliability of monorail crane braking system has an important influence on braking safety, high-speed and heavy-load operation, which poses great challenges to braking safety, and it is necessary to evaluate its braking reliability accurately and efficiently. Firstly, the dynamic performance and thermal-mechanical coupling characteristics of high-speed and heavy-load monorail crane under different braking parameters were analyzed. Secondly, the random response model of braking distance and braking temperature was established by combining the design of experiment method (DoE) and Dendrite Net (DD). Finally, the high-order moment saddlepoint approximation (SPA) method was used to evaluate the emergency braking reliability of the monorail crane. The results can provide a reference for the selection of key parameters and the evaluation of braking safety of the monorail crane braking system under high-speed and heavy-load conditions.
单轨起重机制动系统的可靠性对其制动安全、高速、重载运行有着重要影响，对其制动安全提出了巨大挑战，需要对其制动可靠性进行准确、高效的评估。首先，分析了高速重载单轨起重机在不同制动参数下的动力性能和热力耦合特性。其次，结合实验法(DoE)和Dendrite Net (DD)的设计，建立了制动距离和制动温度的随机响应模型;最后，采用高阶矩鞍点逼近法对单轨起重机的紧急制动可靠性进行了评估。研究结果可为高速重载条件下单轨起重机制动系统关键参数的选择和制动安全性评价提供参考。
期刊介绍：
The quarterly Eksploatacja i Niezawodność – Maintenance and Reliability publishes articles containing original results of experimental research on the durabilty and reliability of technical objects. We also accept papers presenting theoretical analyses supported by physical interpretation of causes or ones that have been verified empirically. Eksploatacja i Niezawodność – Maintenance and Reliability also publishes articles on innovative modeling approaches and research methods regarding the durability and reliability of objects.
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