Mathematical Problems in Engineering

Research Article

Adaptive Step-Size Control in Simulation of Diffusive CVD Processes

Figure 7

Empirical determination of the model of the control path. The three main cases: (1) 𝑥 𝑎 ( 𝑡 = 0 ) ≠ 0 ∶ P , P D T 1 , P P T 1 , P I D T 1 , (2) 𝑥 𝑎 ( 𝑡 = 0 ) = 0 , ̇ 𝑥 𝑎 ( 𝑡 = 0 ) ≠ 0 ∶ I , P T 1 , P D T 2 , (3) 𝑥 𝑎 ( 𝑡 = 0 ) , ̇ 𝑥 𝑎 ( 𝑡 = 0 ) = 0 , ̈ 𝑥 𝑎 ( 𝑡 = 0 ) ≠ 0 ∶ I T 1 , P T 2 , … . , (1) 𝑥 𝑎 ( 0 ) = 0 , (2) ̇ 𝑥 𝑎 ( 0 ) = 0 , (3) ̈ 𝑥 𝑎 ( 0 ) ≠ 0 .
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