Rotating Joints - VEX Robotics

STEM ConnectionsBackgroundFixed-wing aircraft rely on rotating flaps to guide the plane. These flaps can be found both on thewings and the tail of the plane and can be observed in action if you are sitting in a seat near the wings.ScienceFixed-wing aircraft represent humans’ best attempt at flight, but the wings of a bird are far superior.1. What types of joint movement occur during the motion of a bird in flight?2. How many degrees of freedom does a bird’s wing possess?TechnologyMany believe that the future of aircraft technology is in “switchblade” plane design, a concept thatenables an aircraft to alter wing configuration in midfield to adjust its agility and speed. Some designsadjust each side wing individually, while others pivot the entire wing into a new position.■What type of joint movement might be employed to accomplish this wing readjustment, and whatkind of joint loading can you envision with this new technology?STEM Connections■29