Study on Parameter Optimization Design of Drum Brake Based on Hybrid Cellular Multiobjective Genetic Algorithm

Pseudocode 2

Crossover operation pseudocode based on DE strategy.

proc crossoverInDE(𝑟1,𝑟2,𝑟3)

// 𝑃_𝑥1 and 𝑃_𝑥2 are the corresponding initial position index and terminal position

index of the parameters

Rand_𝑗=randInt(𝑃_𝑥1,𝑃_𝑥2);

// perform differential crossover operation

 for (𝑗=𝑃_𝑥1,𝑗⇐𝑃_𝑥2,𝑗=𝑗+1)

      if (rand(0,1) < CR or 𝑗=Rand_𝑗)

   𝑣_{𝑟3[𝑗],𝑡}=𝑥_{𝑟3[𝑗],𝑡}+𝐹×(𝑥_{𝑟𝑙[𝑗],𝑡}−𝑥_{𝑟2[𝑗],𝑡}); //t means current functions evaluations

  else

   𝑣_{𝑟3[𝑗],𝑡}=𝑥_{𝑟3[𝑗],𝑡};

  end if

 end for

 return 𝑣_𝑟3,𝑡;

end_proc crossoverInDE