| Author | Chen, Cheng-chung |
| Call Number | AIT Thesis no. ST-94-4 |
| Subject(s) | Mathematical optimization
Genetic algorithms
|
| Note | A thesis submitted in partial fulfiIIment of the requirements for the degree of Master
of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | The genetic algorithms that employ the Darwinian survival-of-the-fittest theory to solve the
optimization problems are proved potential in structural optimization problems. During the past
decade, various methods were proposed to improve the traditional genetic algorithms and to
integrate the genetic algorithms with structural optimization problems. More disruptive process,
more dete1ministic rule and adaptive parameter were proposed to yield better performance than
those of traditional genetic algorithms that use less disruptive process, probabilistic rule and fixed
parameter. Unfortunately, all these methods were taken into account individually and most have
not been applied in structural optimization problems.
This study assesses the impact of different methods for genetic algorithms and optimization
methods for space truss optimization, including two methods for structural optimization, penalty
function method and augmented Lagrangian method, and three categories of improvement for
genetic algorithms: (1) roulette wheel selection, stochastic sampling selection, and deterministic
sampling selection for reproduction operation (2) I-point crossover, 2-point crossover,
20%-uniform crossover and 50%-uniform crossover for crossover operation (3)
constant-mutation-rate and varying-mutation-rate for mutation operation. At last, three space
trusses are served as numerical examples. |
| Year | 1994 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Worsak Kanok-Nukulchai |
| Examination Committee(s) | Jiaru, Qian ;Taweep Chaisomphob Pennung Warnichai
|
| Scholarship Donor(s) | Ministry of Economic, R.O.C. |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1994 |
