Vina From the plots shown Do you agree then that the elevator changes position at a rate greater than 2hz?
Is it just me , or is it the entire younger generation these days (there was a "graph" problem in the GSLV thread too) has totally lost the ability to read and analyze graphs and make any sense out of it.?
From the graphs you posted, all that I can conclude is that the FBW laws are very accurately close to real world and in fact,the guys who created those FBW laws should be totally complemented. The FBW law design calls for at most 2 to 3 deflections in a second and I dont see anything in the graph that contradicts it!.
As for the "serrated edges" of the lines in "real world" , how did you actually jump straight to the conclusion that it was the flight computer that actually made those commands, the system responded and got captured in the readings?. If anyone shows me the result of a experiment as a nice smooth line without fitting and approximation, it is either a fake or scaled out to such an extent that the experiment errors are smoothened out!. From the scale of the graph , it is apparent that these are well within experimental error /instrument error and random noise ranges!.
As an exercise, why dont you fit a nice smooth line through the serrations/variations in "real world" and then tell me how it holds up to your conclusion that it should be 20 hz!.
That was my first post on this forum that this rate is too small and has to be greater that is all.
I did bring up the 20Hz update rate based on the experience I had with FBW aircraft ( Just for people interested google bonanaza + fly-by wire)
Sorry, you are totally confused between the actual response rate of the control systems and the cycle speed of the control system. It doesn't stand to basic engineering reason in my opinon and fails basic sanity checks.
Like I said, for "google bonanaza + fly by wire" has a control surface that flaps at 20 hz, get me his name and show me a video of it flapping at that rate and I will build a shrine for him and elevate him from being a mere mortal to a saint/immortal in aerospace engg.