Dear Cereal Company President- According to our investigations, observations(data) and research from our PBIS textbook we recommend that if you want a slow and stable falling whirligig then the whirligig needs two paper clips on the stem and long blades. Based on our evidence from our whirligig experiment, the longer the blade length, the longer it took to reach the ground. Based on our data table, we found that when we used the longer blade length, the average fall time was about 2.55 seconds
A wind turbine converts mechanical energy of wind into electrical energy. First wind turbine for generating electricity was built by Charles F. Brush during 1887-88. Later, Dane Poul La Cour discovered that fast rotating wind turbines with lesser blades are more efficient than slow moving wind turbines for producing wind turbines [6]. Wind turbine blades are shaped to produce maximum power from the wind at the minimum cost [8]. Wind turbine blade consists of mainly of two components- 1. Outer Shell-
In the current project, the blade structure is analyzed mainly on the four following aspects mentioned below: Analysis of maximum strength Stability analysis(buckling) Deflection analysis( to prevent blades from striking the tower) Analysis with different cores to check the stiffness Besides, fatigue failure analysis is also included in the real field testing. The first process in designing the wind turbine involve the calculation of the various loads expected to act on the blade surface during