A modified hybrid uncertain analysis method for dynamic response field of the LSOAAC with random and interval parameters
作者： Bin Zi , Bin Zhou
DOI: 10.1016/J.JSV.2016.03.032
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摘要: Abstract For the prediction of dynamic response field luffing system an automobile crane (LSOAAC) with random and interval parameters, a hybrid uncertain model is introduced. In model, parameters certain probability distribution are modeled as variables, whereas, lower upper bounds variables instead given precise values. Based on equilibrium equation, in which different simultaneously included input output terms, constructed. Then modified analysis method (MHUAM) proposed. MHUAM, based perturbation method, first-order Taylor series expansion Neumann series, expression LSOAAC developed. Moreover, mathematical characteristics extrema determined by moment monotonic technique. Compared Monte Carlo (HMCM) (IPM), numerical results show feasibility efficiency MHUAM for solving problems. The effects models also investigated deeply, indicate that impact made randomness thrust cylinder F larger than gravity weight suspension Q . addition, uncertainty displacement between end lifting arm length L
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