Integrated Optimization of Pipe Routing and Clamp Layout for Aeroengine Using Improved MOALO

Algorithm 1

The improved MOALO.

Initial parameters of MOALO

Initial the primary population of ants

While the end condition is not met

Determine the new population size using Eq. (15)

If

Calculate the position of new members using elitism.

Else

Remove the failed members from the population.

End

For every ant

Select a random antlion from the archive

Select the elite using the roulette wheel from the archive

Create a random walk and normalize it

Update the position of ants

End for

Calculate the objective values of all ants

Update the archive

If the archive is full

Delete some solutions using the roulette wheel from the archive to accommodate new solutions.

End

End while

Return archive