adding a yaw-movement to a 2DOF-simulator

Here you can show and share your design ideas and ask questions about them

adding a yaw-movement to a 2DOF-simulator

Postby Mertensbart20 » Wed 20. Nov 2013, 22:41

Hello everybody,

Last year I build 2DOF-simulator with my students. This simulator can be found here:

viewtopic.php?f=37&t=335

Now we are going to expand this simulator by placing it on top of a turningtable. You can find some pictures of the turningtable below and also the inventor-project. I'll keep it up to date and will also add information about the motor we aren using.

Greetings,
Bart
Attachments
turning table - inventor.rar
(7.72 MiB) Downloaded 609 times
picture 3.pdf
(33.81 KiB) Downloaded 574 times
picture 2.pdf
(28.69 KiB) Downloaded 454 times
picture 1.pdf
(37.59 KiB) Downloaded 457 times
turningtable - buildingplan.pdf
(106.73 KiB) Downloaded 474 times
Last edited by Mertensbart20 on Thu 21. Nov 2013, 19:30, edited 1 time in total.
Mertensbart20
X-Sim Supporter
 
Posts: 115
Joined: Sun 29. Apr 2012, 11:52
Location: Belgium
Has thanked: 0 time
Been thanked: 4 times

Re: adding a yaw-movement to a 2DOF-simulator

Postby Mertensbart20 » Thu 21. Nov 2013, 19:30

Hello everybody,

For who would be interested here is some more information.

The construction is mounted on two turn tables, a Jost 850L (price 300 euros) and a Jost 400L (price 140 euros), see pictures below. These turntables will be fixed in the floor.
The 400L is connected with the motor. The axis of the motor itself will stand still and the rest of the motor will turn. This way the platform can turn indefinitely. Power is supplied by turning contact-points (see http://www.sleepringen.nl/compacte_slee ... 45___.html for more information)
The 850L is added for extra stability.

The motor is an AC-motor of SEW with following specs:
- speed 10rpm
- torque 220NM
- power 370W
- build in encoder (24 pulses per revolution)
- price: about 700 euro's
- further detais be found in motorspecs.pdf

The motor is driven a Siemens G110 invertor.

For the moment the motor is already driven by X-sim through a VM140. Pictures and a video will follow soon. It will get interesting when teh construction is finished and real testing can begin. I think that will by the end of february.

Greetings,
Bart
Attachments
motorspecs.pdf
(34.46 KiB) Downloaded 375 times
Mertensbart20
X-Sim Supporter
 
Posts: 115
Joined: Sun 29. Apr 2012, 11:52
Location: Belgium
Has thanked: 0 time
Been thanked: 4 times

Re: adding a yaw-movement to a 2DOF-simulator

Postby Mertensbart20 » Tue 1. Jul 2014, 18:02

Hello everybody,

It has been a while but I finally mounted the turningtable to the floor. Tomorrow we are going to test it with the platform on top of it. You can find pichtures below and a video will follow soon.

Greetings,
Bart
Attachments
Mertensbart20
X-Sim Supporter
 
Posts: 115
Joined: Sun 29. Apr 2012, 11:52
Location: Belgium
Has thanked: 0 time
Been thanked: 4 times

Re: adding a yaw-movement to a 2DOF-simulator

Postby dbergsneider » Wed 2. Jul 2014, 04:01

Hi Bart! Congratulation on that awesome design hope to see the test video soon.

Daniel B
dbergsneider
 
Posts: 5
Joined: Tue 17. Sep 2013, 06:05
Has thanked: 0 time
Been thanked: 0 time

Re: adding a yaw-movement to a 2DOF-simulator

Postby Mertensbart20 » Fri 4. Jul 2014, 19:17

Hello everybody,

The yaw-axis has been mounted and the rest of the simulator is mounted on top. Here you can find two test videos:

- video 1: https://www.youtube.com/watch?v=wLjptQ-GuGY&feature=youtu.be
This video tests the yaw-axis at low speed (about 3 rpm). If I go lower I risk the motor not having enough torque. This is because I use a asynchrone motor and if you go below 15Hz (3 rpm for my motor) the torque drops dramatically. But I think I can go to 10Hz with some tweaking of the invertor.

- video2: https://www.youtube.com/watch?v=B3ECifeIBAU&feature=youtu.be
This video tests the yaw-axis at high speed (10 rpm). I think I can go up to 15rpm but I'll test that later on. In this video I had a ramp up time and ramp down time of 3 seconds because my laptop is not yet fixed to the wooden board and I didn't want it to go flying :-) . Later on I will probably use a ramp up time of 200ms.

Next up is doing some electrical work and also making sure I can cut power to the invertors when sitting in the cockpit. That will be done in the beginning of next week. Really looking out the result.

Greetings,
Bart
Mertensbart20
X-Sim Supporter
 
Posts: 115
Joined: Sun 29. Apr 2012, 11:52
Location: Belgium
Has thanked: 0 time
Been thanked: 4 times

Re: adding a yaw-movement to a 2DOF-simulator

Postby dbergsneider » Mon 7. Jul 2014, 04:20

Bart that is awesome! I cant wait to build my own yaw platform!
dbergsneider
 
Posts: 5
Joined: Tue 17. Sep 2013, 06:05
Has thanked: 0 time
Been thanked: 0 time

Re: adding a yaw-movement to a 2DOF-simulator

Postby Mertensbart20 » Wed 9. Jul 2014, 19:57

Hello everbody,

I finished the electrical set up and tested the whole simulator with Dirt 2. You can find a video here:

https://www.youtube.com/watch?v=92PAlG_RpSo

The yaw-speed is limited to 8 rpm allthough the nominal motorspeed is 10rpm. But to my surprise 8 rpm is fast enough. At higher speeds I get dizzy :-) .
It also works with Dirt 3, Grid 2 en Dirt showdown as they use the same setup.

Next up is testing the whole simulator with No Limits Rollercoaster. I assume here 10rpm is more suited since a rollercoaster should make you dizzy :-).

Greetings,
Bart
Mertensbart20
X-Sim Supporter
 
Posts: 115
Joined: Sun 29. Apr 2012, 11:52
Location: Belgium
Has thanked: 0 time
Been thanked: 4 times

Re: adding a yaw-movement to a 2DOF-simulator

Postby dbergsneider » Thu 10. Jul 2014, 01:00

Bart it seems to works perfect, but I think the dizzy feel is because is not enclose and you see allthe room moving arround. I thought you monitor will fly away in any moment jejejeje
Congrats!
Daniel
dbergsneider
 
Posts: 5
Joined: Tue 17. Sep 2013, 06:05
Has thanked: 0 time
Been thanked: 0 time

Re: adding a yaw-movement to a 2DOF-simulator

Postby dbergsneider » Thu 10. Jul 2014, 01:17

Bart it seems to works perfect, but I think the dizzy feel is because is not enclose and you see allthe room moving arround. I thought you monitor will fly away in any moment jejejeje
Congrats!
Daniel
dbergsneider
 
Posts: 5
Joined: Tue 17. Sep 2013, 06:05
Has thanked: 0 time
Been thanked: 0 time

Re: adding a yaw-movement to a 2DOF-simulator

Postby Mertensbart20 » Thu 10. Jul 2014, 11:06

Thanks Daniel,

The dizzyness does have to do with the room not spinning but I can't take a movie when the room is dark :-). But even when I darken the room completely (which is luckily easy to do since it is the basement) I get dizzy at full speed. Could also be that I am more prone to getting dizzy.
I wonder if the upcoming oculus rift will be compatible with the simulator. I know that Dirt 2 can be adapted to be compatible with the oculus rift. But I am afraid the oculus rift will also pick up the motion of the simulator and hence produce a constantly moving display. We'll see once the commercial version comes on to the market.

Greetings,
Bart
Mertensbart20
X-Sim Supporter
 
Posts: 115
Joined: Sun 29. Apr 2012, 11:52
Location: Belgium
Has thanked: 0 time
Been thanked: 4 times

Next

Return to Motion simulator designs

Who is online

Users browsing this forum: No registered users and 1 guest