Tell me the tutorial for Motion Simulation in ug nx
go to my profile you can see some motion files
There's also one motion simulation in my profile, made in NX 9.0.
NX 9.0 Motion Simulation - Car Suspension
Basically what you have to do is define Links which means a moving body. Then you have to define Joints which are basically like assembly constraints and allow the model to move according to the constraints/Joints. The movement and friction for example can be defined in Joint, there are tabs "Friction" and "Driver".
One of the best things in NX Motion Simulation is that it defines automatically the Links and Joints from the assembly. Assembly parts are converted into Links and assembly constraints are converted into Joints. So if you got the assembly right, there's really little work to turn it into a motion simulation model.
And one more thing. If you aim to simulate a mechanism with specific information of it's features then use Motion Simulation. But if you simulate a complete machine moving in it's environment for example, then use Mechatronics Concept Designer.
Suspension simulation was done in Motion Simulation where I can get very specific information of the simulation data like forces that are applied to different parts etc. But this robot simulation that I'm working on is done in Mechatronics Concept Designer which suits this kind of simulation better.
When should we choose "motion simulation" and when "mechanotronics"?
Mechatronics Concept Designer is good for simulating for example a belt conveyor or a robot where the main idea is to see how the product works in it's environment with specific speeds and what can cause problems with it etc. You can give motion information in linear or angular form, there are no spring elements if I remember correctly and also no friction as in Motion Simulation. Best thing in MCD is the physics engine running in the background which also lets you mess around with the simulation while it runs. You can move cartridge boxes all over on that conveyor belt, place them on each other etc etc. The collision bodies are also much improved in the newer versions of NX so the collisions are much more realistic in parts with complex shapes.
Motion Simulation is good for simulating a specific component or assembly in much higher detail. Like an axle from that conveyor belt, you can see what kind of forces is applied to it etc. In Motion simulation you can give much more specific information of the movement, friction (not in MCD) and also get results of forces etc.
I would use Motion Simulation to see that specific components or units can take the loads that are applied to them and MCD to see how the whole thing moves and does it's job.
Motion Simulation can also be combined with Structural Analysis which MCD can't do. So basically you can simulate car suspension movement for example and combine it with structural simulation to see what kind of forces are applied to suspension components during the movement.
Same applies to Flow/Thermal simulation. You can simulate a flow on a race car wing for example and combine it with Structural Analysis to see how much downforce the wing creates in different speeds or with different wing shapes, this way you can also find out if the wing supports can handle the forces at high speeds. MCD can't be combined with any other simulations straight.
See these video for your need.