Recent content by user1234

Here is my final conclusion: If a spinning object(wheel, propeller etc.) is also rotating around the axis perpendicular to the spinning axis then there must be some torque which is cross product of angular momentum of spinning wheel and angular velocity of precession. I mean it can't be said...

I posted a question that is ,i think, a simplified model of a quadcopter in stack exchange here but no one answered the question satisfyingly. I think quadcopter model with props and main frame has complex dynamic structure and in articles it is considered somehow a simple model. If i reach a...

I do already understand yaw movement of the quad what i try to understand is movement of the quad in x and y axes. If you look at the formulae you will see gyro precession a.v. is substituted with body coordinate frame angular velocity [p q r]. Does not that mean that gyro effect is...

All four props are spinning about the yaw axis. But their total angular momentum is very near zero. So, their total gyroscopic effect will be near zero. But this does not solve our problem, if gyro effect is so small, why is precession angular velocity which is created by gyro effect...

Yes, gyro torque appear only for x and y axis, as seen from the formulae. As for the your second question i didn't understand the phrasing "interdependence of additional movement", articles don't explain deeply what causes what, authors just state what external forces exist, and what they are...

Thanks for reply, but i think you didn't understand me correctly. First of all, the equation above is represented in the body frame that means the frame is fixed to center of mass of quadcopter and rotates with the quadcopter. In your reply you are talking about angular velocity of yaw axis(z...

Hi everyone, this is my first post in the site. I post this thread below 'Mechanical Engineering' topic because i see most drone questions is posted under this subject but question can be more suitable to other subject so please let me know. In quadcopter dynamic equations of Newton-Euler...