No official, legal, publisher-backed "Solution Manual" exists under that exact title for the 971 extra quality version. R.S. Khurmi typically publishes "A Textbook of Theory of Machines" where the answers to numerical problems are provided at the end of each chapter. However, a separate, step-by-step instructor’s solution manual for the 14th/15th editions is highly restricted.
This article will serve three purposes:
The "extra quality" PDFs often have missing formulae for torque. Your solution manual is to memorize: Explain what you are actually looking for
T1/T2 = e^(μθ)T1 * a = T2 * b + F * c (watch the sign for self-locking).For a flat or V-belt drive:
Ratio of tensions (without centrifugal tension):
[
\fracT_1T_2 = e^\mu\theta
]
where ( \theta ) = angle of lap (radians), ( \mu ) = coefficient of friction. consider the following:
With centrifugal tension ((T_c)):
[
T_c = m v^2
]
Effective driving tension = (T_1 - T_c) on tight side, (T_2 - T_c) on slack side.
Then:
[
\fracT_1 - T_cT_2 - T_c = e^\mu\theta
]
Power transmitted:
[
P = (T_1 - T_2) \cdot v
]
or including centrifugal tension:
[
P = (T_1 - T_c) \left[1 - e^-\mu\theta\right] v
] Explain what you are actually looking for
Initial tension ((T_o)):
[
T_1 + T_2 = 2T_o \quad \text(if centrifugal tension is neglected)
]
With (T_c):
[
T_1 + T_2 = 2T_o + 2T_c
]
When looking to acquire this solution manual, consider the following: