NUMERICAL CONTROL FORM GRINDING MACHINE TEMPERATURE CHARACTERISTIC ANALYSIS ON MOVABLE UPRIGHT COLUMN AND ITS DATA FITTING
In order to study numerical control form grinding machine temperature field characteristics on movable upright column with mid-arranged sliding guide, a real-time temperature acquisition system was developed by LabVIEW (laboratory virtual instrument engineering workbench) and temperature field on column was measured. Based on the analysis of data, a step-by-step recursive fitting algorithm was presented to process multi-order exponential function with large span of time constant. In accordance with the feature that exponential function with various time constants has different equilibrium time, first-order exponential function fitting algorithm was adopted; then time constant and corresponding amplitude of multi-order exponential function through step-by-step fitting. High fitting precision has been proved by comparing the fitting curve with the test curve. The fitting algorithm is suitable for temperature characteristic analysis and accurate modeling of upright column.
Temperature field measurementTemperature characteristicFitting algorithmExponential functionStep-by-step recursive
NETL
NSTL
万方数据
维普
