Recent content by viscousflow

Here is a website dedicated to having a camera attached to your aerial vehicle and wireless telemetry for it (FPV): http://www.fpvpilot.com/Pages/GettingStartedinFPV.aspx Control system? Here is an easy off the shelf solution: http://www.diydrones.com/notes/ArduPilot/ Website to learn more...

Well this has to be the case since the aerodynamic center you were given is the 2D aerodynamic center. The blade's true 3D aerodynamic center will change and will be along a new constant chord. You will have to recalculate the 3D AC or estimate it using CFD.

Let me clarify a few things. You are simulating a quadrotor. You want to develop a non-linear Thrust model. Torque isn't particularly useful in your simulation unless you need to know if your motor can spin the prop without overheating. Your thrust model consists of a prop - motor combination...

How can this be? Those things use a propeller to pull in the surrounding air and blow it through the structure which has an aerodynamic shape that directs it outward, hence major efficiency losses. So there is no way it could have more thrust than the thrust created from a direct drive system...

Err this should be poles, or roots of the denominator.

Based on your knowledge of control systems there are some really quick things you can determine! T(s) = \frac{15\left(s+2.1\right)}{\left(s+2\right)\left(s^2+4s+29\right)\left(s^2+2s+50\right)} Firstly T(s) = \frac{\left(s+2.1 \right)}{\left(s+2\right)} are really close so they can...

Cant you access system time and place a switch on the variable once the time meets conditions of day and night? Does it have to be only with the MPC toolbox?

You will have to mathematically rotate the accelerometer's frame to the gravity frame. You will have to measure the x-z and y-z angles that it is tilted by.

What sort of terrain are you operating in? Optical processing may be an option but that depends on your environment. Also the accuracy of GPS increases with the use of a WAAS capable receiver. It is possible to augment your 3d position with optical processing. (LIDAR, camera, IR camera, etc...)

This sounds like a homework problem. Also if you'd like such detailed help, it would help us if you provide the details of your work, i.e. show your working.

When placing your two right most poles using the gain kd, your left most pole will tend to move toward the zero position at some position specified by kd also. So if you're ignoring the left most pole only, then it has the same effect of ignoring both the left most pole and the zero, since the...

Lol. I'm sorry but I can't see this being true for any serious university student.

Search for an online tool called "Javafoil". Create your custom airfoil then search for a program called "XFLR" All freeware, these tools will get you the aerodynamic data you need.

Search for Buckingham's Pi Theorem.

1) try two transfer function blocks [1/s] in series. (Although I suspect what you're doing is equivalent) 2) It is correct, although there is PID controller block. 3) There is no model of D(s) given so you can assume nothing helpful. 4) Looks like you're on the right track but its too late...