Hi all
I hope everyone had a good weekend. I have a small question, I have attached a picture of my filtration support with a clamping screw ect... Brief. I tilted my stand 60°, used the ground properties function and nothing moves from the original (0° tilt).
Can I check the center of gravity on Solidworks following an inclination? Is there a function?
Thank you in advance for your answers:)
physically as long as a horizontal floor is not represented and a contact via ground and room connection
It seems to me that the center of gravity of your piece will always be the same
@+ ;-)
Hello Lucas.
The answer is no, because by definition, a center of mass, only moves if you have moving parts or if you add or remove them.
If you want to have information about the tipping point (which seems to be your concern), you can only know it by making a sketch on a plan and in your case by connecting the three wheels to your center of mass.
Thus, when your center of mass exceeds your plumb defined by your wheels, your assembly will tilt irremediably.
Be careful, this reasoning is only valid in static and the empty machine under your plate, because if you have parts under your presser plate (see your previous post) then your point of this non-return will be made before because of inertia.
If I may make a remark a little outside of your request, ;-) ;-) ;-) It should always be remembered that tripods are eminently unstable. It is for this simple reason that office chairs are five-pronged, because in the past there were too many falls and injuries.
Second point, the fact that the wheels are offset from the vertical axis of rotation of these wheels increases the risk of tipping, because when it realigns by two during the tipping, you increase the inertia suddenly without noticing it. Note that as you rotate your assembly (see the photo), your tipping point, even in static, will be wrong if you don't position the wheels correctly. As it is, it is wrong.
Regards ;-)
I would like to specify that I put 60° in inclination to extrapolate and check if my center of mass varies according to the angle but I noticed that it had no impact... Otherwise my test must be done with a maximum inclination of 10°.
I thought about creating a sketch to visualize if I'm outside my support or not but I don't really know how to proceed and know if I'm doing things right or not...
Lack of reflection on my part, I found a suitable solution thank you for your help
It will be interesting to understand
the lack of reflection on your part
and how you solved the problem
@+;-)
It's just that I always complicate my life too much.
I tilted my support to 10°, I created a point with the coordinates of my center of gravity (Ground Properties). Then I put myself on the plane on the right, I created a sketch and drew a vertical axis from my center of gravity. If your axle stays between the 2 casters your system will not tip over.
Photo to prove it.
To automatically quantify the distance between CoG and fulcrum, it is possible to create a coordinate coordinate coordinate system, attached to the fulcrum with the correct inclinations. All you have to do is ask SW to calculate the CoG in this coordinate system, the distance x, for example, immediately gives an idea of the stability of the system.
Once, at a customer's site, I was told that the CoG had to remain in the central third of the support.
Good evening Lucas
When you have your set there is at least one part that is fixed and therefore holds the whole together.
You look at which plane it is fixed on (it is often the front plane in automatic insertion)
On this plane, let's assume that it's the front plane, you do: sketch (Q) and there, you place a first line in the axis of the screw, which is in the center of your ASM.
Then, you make a line that goes from the axle of your wheels to the top of your ASW (where the steering wheel is). Then, still starting from your wheels, you make a vertical line inclined at 15°.
You look at where your CG is and you can draw a second vertical line that goes from CG to the wheels. You look at where the wheels are, i.e. inside or outside your line.
So you can also know the max travel before it tilts and by locating it in relation to your 10°: you have an idea of the room to maneuver or not. But beware of dynamic movements because 10° is nothing at all compared to your CG which is still quite high.
The slightest thing that locks the wheels when moving and booms the hut on the dog's head
Good evening Lucas
Since we're all talking together: I suggest you turn your wheels and put them in the right position in the direction of the ascent but especially in the direction of the descent. Then you will realize that the CG almost passes over the point of contact of the wheels with the ground.
This clearly says that your system will not be stable (Cf. the relevant remark of @Stefbeno which states "stay in the central third of the supports. " Don't forget, too, my remark about tripods.
See you soon ;-) ;-)
Kind regards