Constraining spokes for motion simulation
Constraining spokes for motion simulation
(OP)
Hi!
I need some help with constraining the spokes in a bicycle wheel I've made! When I run the simulation, the spokes move all over the place.
Any tips anyone? Here's a link to a .zip with the parts:
http://folk.ntnu.no/simenval/Bicycle_wheel.zip
Thanks in advance!
braaten1124
I need some help with constraining the spokes in a bicycle wheel I've made! When I run the simulation, the spokes move all over the place.
Any tips anyone? Here's a link to a .zip with the parts:
http://folk.ntnu.no/simenval/Bicycle_wheel.zip
Thanks in advance!
braaten1124





RE: Constraining spokes for motion simulation
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Constraining spokes for motion simulation
RE: Constraining spokes for motion simulation
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Constraining spokes for motion simulation
then the motion simulation of the provided parts is a "one link and one joint simulation" only. - The entire wheel, is one link.
When one starts the Motion Application, it will ask if one wants to convert the assembly constraints into links and joints. In this case = no ( "Cancel") since it is far easier to manually select all pieces of the wheel when defining the link. The fork does not have to be a link, leave it out for the moment and set the joint between the wheel and "nothing". ( do not select anything on the "second link"), It will then be "fixed in space" but allow the wheel to spin.
In case you want to animate a the spokes individually, then they should be links, not else.
I guess that if you want to transfer load data ( such as gravitational forces / brake forces / cornering forces etc ) between Motion simulation and FEM, then the spokes needs to be a link to isolate the data.
Regards,
Tomas