Imprecise probability reliability evaluation method for gear transmission device
A gear transmission and reliability technology, applied in geometric CAD, design optimization/simulation, etc., can solve problems such as failure to consider, system response deviation, and difficulty in accurately obtaining the probability distribution of uncertain design variables.
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[0066] General method of the present invention is described below in conjunction with accompanying drawing:
[0067] Such as figure 1 As shown, an imprecise probabilistic reliability assessment method for gear transmissions includes the following steps:
[0068] Step 1: Analyze the uncertain factors in the design process of the gear transmission, and determine the identification framework and basic reliability distribution of evidence variables according to the information of the sample points, and then construct the formula (1) according to the actual problem Limit state function g(X) for gear transmission reliability evaluation:
[0069] g(X)=g 0 Formula 1)
[0070] X=(X 1 ,X j ,...,X s ),j=1,2,...,s
[0071] In formula (1), g 0 is the admission response value, the evidence variable X j Consists of n focal elements in formula (2):
[0072]
[0073]
[0074] In formula (2), x i Indicates the i-th focal element, Indicates the interval of the i-th focal elem...
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