Noise Analysis in Different Flapping Mechanisms for Efficient Flying

Despite being stated as “unsteady aerodynamics”, the flapping of birds was the first biological mechanism that inspired humans to fly. Though flapping wings is the most efficient way of flying, the main hindrance is its unsteady nature of gaining a counter-lift for each flap. The primary aim of this project is to analyze two flapping mechanisms: straight continuous wing and swept & bent wing for various parameters. In this project, both mechanisms are designed with almost similar physical properties. These mechanisms namely, straight continuous wing flapping mechanism, and swept and bent wing flapping mechanism are tested for endurance, flapping frequency, and sound emitting factor. The flapping frequency is measured using a laser tachometer. The endurance of the mechanism is tested by fully charging the battery and draining it to measure its withstanding ability. The project also focuses on reducing the noise of the flying vehicle; hence it can be used for spy or animal surveying purposes. An acoustic chamber is built and a sound analyzer application is used for measuring noise. Based on these results, the best-suited model will be developed for further studies and used for the flying model.