Machine Design II and Gears Quiz

Mechanical drives are intended to transmit power over a certain distance.

Belt drive (friction), chain drive (engagement), and gears (engagement).

Gear drives transmit power by means of successive engagement of teeth, resulting in a constant velocity ratio.

<p>The center distance between the gears in gear drives is small, resulting in a compact construction.</p> Signup and view all the answers

<p>A provision can be made in the gearbox for gear shifting, thus changing the velocity ratio over a wide range.</p> Signup and view all the answers

<p>The salient features that dictate a selection of explicit/implicit time integration schemes are stability, accuracy, and computational efficiency.</p> Signup and view all the answers

<p>To obtain expressions for order of accuracies in space and time with the help of Taylor series expansions, the Taylor series expansion of the discretized equation can be used to determine the leading order terms in the error.</p> Signup and view all the answers

<p>Indirect methods are used to solve a system of linear equations in CFD because they are typically more computationally efficient and robust than direct methods for large-scale systems.</p> Signup and view all the answers

<p>The expressions for Jacobi-iteration and Gauss-Seidel to compute an update of O variable are: Jacobi-iteration: $O^{(k+1)}<em>{i,j} = \frac{1}{4}(O^{(k)}</em>{i+1,j} + O^{(k)}<em>{i-1,j} + O^{(k)}</em>{i,j+1} + O^{(k)}<em>{i,j-1})$ Gauss-Seidel: $O^{(k+1)}</em>{i,j} = \frac{1}{4}(O^{(k)}<em>{i+1,j} + O^{(k+1)}</em>{i-1,j} + O^{(k)}<em>{i,j+1} + O^{(k+1)}</em>{i,j-1})$</p> Signup and view all the answers

<p>Among Jacobi-iteration, Gauss-Seidel and Gauss-Seidel successive over-relaxation (SOR) solvers, Gauss-Seidel is expected to perform fastest.</p> Signup and view all the answers