PSI - Issue 33

Nassima Naboulsi et al. / Procedia Structural Integrity 33 (2021) 989–995 Nassima Naboulsi et al. / Structural Integrity Procedia 00 (2019) 000–000

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2.3. Experimental validation The principle is to adjust the parameters τ and T so that the response curve of the model and the real curve of the system have two common points judiciously chosen. The points usually used correspond respectively to 28% and 40% of the final value of the temperature. A fter doing the block diagram of the open loop system on SIMULINK software, as shown in Fig. 4, the response of the real system compared to the response of the system generated by the identification method by Broïda model. For the system in question, the identification using Broïda method got the best response, as shown in the Fig. 5, the agreement of the two points of intersection (t1 and t2) is well verified.

Fig. 4. The block diagram of the open loop system.

Fig. 5. Real curve approximated by the Broïda model.