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三、根据线性回归理论进行回转机械的寿命预测 1.用于状态预测的无量纲征兆参数 为了预测回转机械的状态,就需要有那些与该状态变化呈灵敏反应的参数。因此可以把不受运转条件变化的影响,其标准值和制定标准常常可以统一规定的无量纲征兆参数,作为状态预测用的征兆参数。歪度和峭度都是无量纲参数。
Third, the life expectancy of rotary machinery based on linear regression theory 1. Non-dimensional symptom parameters used for state prediction In order to predict the state of rotary machinery, it is necessary to have those parameters that are sensitive to the change of state. Therefore, it can be exempted from the change of operating conditions. The standard value and the set standard can often unify the prescribed dimensionless symptom parameters as symptom parameters for state prediction. Both skewness and kurtosis are dimensionless parameters.