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Study on reliability of emergency braking performance of high-speed and heavy-load monorail crane

Zhang Jiarong, Lu Hao, Jiang Hui, Miao Yun, Shi Zhiyuan

Eksploatacja i Niezawodność

2024

Vol. 26, no. 1

art. no. 174820

The reliability of monorail crane braking system has an important influence on thebraking safety. The high speed and heavy load operation poses a great challenge to the 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-loadmonorail 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 momentsaddlepoint approximation (SPA) method was used to evaluate the emergency braking reliability of the monorail crane. Theresultscan 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.