New Coordination Software for Parameter Identification Applied to Thermal Models of an Actuator Strut

Table 1

FOPTD models for temperature sensors. Optimized for  m/min (sampling period 2.35 min), other cases as validation without new parameter optimization.

Number	Sensor	Delay; in min	Prop. act. coeff.; in Kmin/m	Time constant; in min	RMSE 20 m/min; in K	RMSE 25 m/min; in K	RMSE 30 m/min; in K
8	Spindle	0	1.33	22.39	0.66	2.49	7.96
5	Ball screw nut	0	1.24	28.25	0.74	1.78	7.60
3	Drive	0	1.20	39.06	0.45	5.59	7.05
4	Bearing	0	1.05	42.52	0.40	2.48	5.20
2	Belt housing	4.70	0.85	57.53	0.51	1.38	3.83
6	Tube middle	2.35	0.52	41.99	0.48	0.42	2.50
7	Tube end	11.74	0.15	93.04	0.08	0.19	0.56
	Mean of all	—	—	—	0.47	2.05	4.96