关键词: 气动元件流量特性扩展式, 参数辨识, 非线性强度, 参数置信区间

Abstract:

Since the extended flow-rate equation for pneumatic components was established,it became difficult to identify flow-rate characteristics stably and accurately.To settle this issue,a nonlinear strengthen of the extended flow-rate equation was analyzed,and its inner curvature index and parameter curvature index were calculated.By plotting its profile-based t figures and calculating its confidence intervals,a new way to analyze some parameters of the extended flow-rate equation
was proposed.

Key words: extended flow-rate equation, parameter identification, nonlinear intensity, confidence interval