Name these components!
track return rollers (yellow circles on the top)
sprocket
here the sprocket is in the back
What are the differences between front and rear sprocket?
Name advantages and disadvantages for each!
Additional disadvantage for front sprocket:
Low tension can lead to bulging in the front
—> danger of thrown track increases further
How is the mass of the vehicle related to its contact area (to soil)?
Tracks:
In which use case is flexibility especially important, and which two kinds of flexibility?
Which types are there?
Which compromise
proportional: M ≈ A_c^1.5
high speed off-road vehicle (longitudinal & torsional)
link tracks vs flexible rubber/ band trfacks
large width of track —> good for soft soil performance
small width of tracks —> larger internal hall volume
name the following:
What is the difference between this and the single pin rubber-bush track?
dry single-pin track: dry friction between track pin and pivot lugs
more lugs —> decrease shear loads in pins
single pin rubber-bush tracks have rubber on the contact area for the wheels and rubber bushes with earthing wires on the end of the track pin
Easier to replace end connector (too much wear)
What is an advantage and a disadvantage of rubber-steel-band track?
pro: reduction in noise and vibration
con: traction on cohesive soils is worse than with steel tracks
What is an advantage and a disadvantage of pre-torsion (pre-moments)?
pro: smaller deflection of the track between support rollers
con: higher dynamical loads
Why are the right and left wheel rows slightly shifted?
Due to suspension anchoring
What is the function of the idler wheel?
Compensate tension loss when driving over obstacles
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