# What is correction couple? - Theory of Machines - 1

Q.  The difference between which two factors denotes the correction couple?
- Published on 06 Aug 15

a. Difference between force required to accelerate non dynamically equivalent system and dynamically equivalent system
b. Difference between torque required to accelerate non dynamically equivalent system and dynamically equivalent system
c. Difference between torque required to decelerate dynamically equivalent system and non dynamically equivalent system
d. none of the above

ANSWER: Difference between torque required to accelerate non dynamically equivalent system and dynamically equivalent system

#### Discussion

• ganesh   -Posted on 23 Jan 17
for dynamically equivalence system moi of system equal to moi of original which is not in non dynamic system then how u r applying k^2=l1×l3
• Sravanthi   -Posted on 19 Oct 15
- Equivalent dynamic system of two mass has three conditions should be satisfied.

1) m = m1 + m2
2) m1 l1 = m2 l2
3) IG = IG1 + IG2

- To satisfy the third condition of dynamic equivalence, correction couple is applied on arbitrarily chosen two mass system.

- The difference between torque required to accelerate non dynamically equivalent system and dynamically equivalent system is called as correction couple.

- The formula to calculate correction couple is given as :

TC = ml1 (l3 – l2) α

## ➨ Post your comment / Share knowledge Enter the code shown above:

(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)