Question:medium

What is the order of basic transformation of frame {i-1} to frame {i}:
(A). Translation along \(z_{i-1}\) axis by distance \(d_i\)
(B). Rotation by an angle \(\alpha_i\) about \(x_i\)-axis 
(C). Translation along \(x_i\)-axis by distance \(a_i\) 
(D). Rotation by an angle \(\theta_i\) about \(z_{i-1}\)-axis
Choose the correct answer from the options given below:

Show Hint

The transformation sequence is crucial for accurate kinematic modeling in robotic systems especially when dealing with multiple frames of reference
Updated On: Jan 17, 2026
  • (A), (B), (C), (D)
  • (A), (C), (D), (B)
  • (D), (B), (C), (A)
  • (D), (A), (C), (B)
Show Solution

The Correct Option is B

Solution and Explanation

The transformation sequence from frame \(i-1\) to frame \(i\) is: a translation by distance \(d_i\) along the \(z_{i-1}\) axis; then a translation by distance \(a_i\) along the \(x_{i-1}\) axis; followed by a rotation of angle \(\theta_i\) about the \(z_{i-1}\) axis; and concluding with a rotation of angle \(\alpha_i\) about the \(x_{i-1}\) axis.
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