Which actuator/motor for 2DOF ?

Hi everyone

Working on a project that aims at building a 2DOF motion platform, I was wondering how to rationally decide which type of actuator/motor is the best?

From my understanding, pneumatic solutions are a big no because they require high air flow and pressure, plus it is noisy. Also, there is lag since air is compressible.

Then, what about hydraulic actuators ?
The system may require maintenance, and the high pressure toxic fluid can be a problem in case a leak occurs.

So, basically it seems only electrical solutions are the way to go. So how does one chose between linear actuators of motors ?

Linear actuators come with a higher price, yet have good performance.

Using motors seems simpler, and cheaper.

However, how I frame electric solutions does not really seem science-based. Could anyone provide more information which rely on solid facts ? How can I objectively decide upon to use a electric motor configuration, or linear electric actuators ? Or maybe another power source than electric is good too ?

Of course, as any open question "it depends". So my question would rather, on what criteria should my choice then depend ?
This far, the criteria are the following ;
- 2DOF
-The simulator must be quiet, since it will be installed in an office for research purpose.
- Must move a 200kg platform (driver included)
- Low maintenance

What would be the tilting angles interval ? I guess the only science-based solution is to look into literature. What do you guys have to say about that ?

And how can one judge if the platform does it's job correctly ? I have read about jerk, the third derivative of displacement, being a determining factor in the simulator performance.

I have no experience in building motion simulators nor the sim world, so any help would greatly be appreciated. I am sure many of you have valuable wisdom to share.

Best,

Seb

The cheapest solution for the two-axis is probably to use the car's wiper motor. If a larger load is required, many diy players will buy a dedicated DC worm motor.

I am not sure if you have figured it out yet, but the way I found a correct motor was to build my simulator first. Then using something like this https://tinyurl.com/yyyemjhq , I quickly pulled up on one side of the sim starting from the lower position and calculated how much the max weight exerted was. Then you want to find the ft lbs that a specific motor lever exerts. My motor lever is about 3" or 1/4' out from the center. So, I took the motor ft/lb and multiplied that by 4. That calculates the maximum force exerted by that lever at the contact point. You should find a motor that is 1.5x-2x more powerful than the max force you found earlier, just for adequate headroom and one that has a reasonably fast rpm (around 60). I am not sure about actuators, but this criteria should work for choosing gear motors.