Hi, > the heli simulation is almost complete for beta testing. Every thing > except the vortex-state-detection and the interface to the yasim-engines > is working now (the engine is simulated rather simplified, but is > working). The feeling is quite different to the "old" simulation (and I > hope more realistic). I just have to strip some debug-stuff and to write > the documentation. Then I will publish the code. > here it is: http://www.mjustus.de/fg/heli060718.tar.gz
Only a "very" beta version with some debug- and some unused code (and a fprintf statement), which will be stripped in the final version. But it should work. I have also updated the parameters of the bo105 (and only for the bo105). But there is some fine-tuning to do. But probably we need someone with more flight experience than I have (exactly 0s at the stick of a real one). Here the "what is new" list: - calculation of the rotor in different segments (with a "twist"-Parameter) (but only in four directions (front, back, right, left) - rather realistic calculation of consumed power (and therefore you can autorotate) - ground-effect and translational lift - something like an engine - stall (but I had ti reduce the drag of the blades in stall in comparison to some NACA-publications. With "realistic" values the rotor-rpm sometimes brakes down to unflyable rpm.) There is a stall property in the property-tree for modifying the sound. - downwash effect on stabs and fuselage (I am not sure if the resulting forces are realistic. In the hovering heli the conditions are quite different from the conditions in a forward flying plane. The effect of the vstabs seems to be to small. The effect of th hstab seems to be in right dimension.) Missing: - interface to yasim engines - vortex-state (I have an Idea how to simulate, but I don't know if it is realistic. The vortex statements in the bo105.xml have no function) - calculation of the rotors at more than the four directions - intensive testing (up to now only very short tested with the bo) - the torque property has a bug It's harder to fly than the old heli simulation. The notorque flag is not working any longer. Maybe someone can add an autopilot for the rudder? For rc-helicopter there are gyro-systems, which either damp the rotation (pd-reguator) or hold the rotation at fixed values (pid-regulator). Maybe this can be done in Nasal? I am using a force-feedback joystick without producing any forces. At all force-feedback support would be very nice (some friction and vibrations depending on the aerodynamic forces).... Happy autorotations, Maik P.S.: the autorotation is probably to easy now. The parameters need to be adjusted to the real bo. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Flightgear-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/flightgear-devel
