It is the angle along the blade such that angle of attack is the same at any radius.
Published in Chapter:
Optimization of the Angle of Twist of Propeller Using Modified Flower Pollination Algorithm
Kok Meng Ong (Universiti Tun Hussein Onn Malaysia, Malaysia), Pauline Ong (Universiti Tun Hussein Onn Malaysia, Malaysia), and Chee Kiong Sia (Universiti Tun Hussein Onn Malaysia, Malaysia)
Copyright: © 2018
|Pages: 29
DOI: 10.4018/978-1-5225-4766-2.ch014
Abstract
In this chapter, a real-world mechanical engineering design problem (i.e., determining the angle of twist of propeller in order to maximize its thrust) was solved using modified flower pollination algorithm (MFPA). First, the relationship between angle of twist and the propeller thrust is explained. Then, the amount of experiments needed for this problem is determined using Box-Behnken design, whereas the mathematical model of this problem is developed using response surface methodology. After that, the overview of flower pollination algorithm (FPA) and its limitation is explained in detail. A proposed MFPA based on chaos theory, frog leaping local search, and inertia weight is explained next. The procedure of solving this problem is explained and the result of this problem is shown later with validation. The optimal solutions obtained from MFPA are 89°, 50.9730°, 48.4565°, 44.6729°, and 64.2286° for five angles of twist start from hub until the tip of the blade.