Capstan :
Question :

Transmission Ratio?
What preload is needed
to drive 8Nm of output
torque with mu=0.5:
• With 0.5 wrap?

Cables, capstan $T_{load} = T_{hold} e^{? ?} ? coefficient of friction ? wrap angle$ $? ? \frac{? _{1}}{? _{2}} ? ? = \frac{r _{2}}{r _{1}} = \frac{N _{2}}{N _{1}} = \frac{T _{2}}{T _{1}} = R$ -What is the transmission ratio? -What preload is needed to drive $8 Nm$ of output torque with $mu = 0.5$ : - With 0.5 wrap? - With ?

Question

Capstan : student submitted image, transcription available below

Question : student submitted image, transcription available below

Transmission Ratio?
What preload is needed
to drive 8Nm of output
torque with mu=0.5:
• With 0.5 wrap?

Cables, capstan

T_{load} = T_{hold} e^{? ?} ? coefficient of friction ? wrap angle

? ? \frac{? _{1}}{? _{2}} ? ? = \frac{r _{2}}{r _{1}} = \frac{N _{2}}{N _{1}} = \frac{T _{2}}{T _{1}} = R

-What is the transmission ratio? -What preload is needed to drive

8 Nm

of output torque with

mu = 0.5

: - With 0.5 wrap? - With ?

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