Answered: Design a crank-rocker linkage that will…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Concept explainers

Question

Design a crank-rocker linkage that will move the rocker link between two extreme positions 45 degrees apart. The rocker should take twice the time to moving in one direction that it takes moving in the other.

If the fourbar linkage designed above is non-grashof, list two ways in which you would alter the design so that the crank is able to rotate.

Expert Solution

Step 1

To design a crank-rocker linkage that will move the rocker link between two extreme positions 45 degrees apart and takes twice the time to move in one direction compared to the other, we can follow these steps:

Choose a fixed pivot point on the ground as point A, and another pivot point on the ground as the center of rotation for the crank, point O.
Choose the length of the crank, AB, such that the angle swept by the crank is 90 degrees. The direction of rotation of the crank should be such that it moves the rocker in the direction where it takes more time to move.
Choose the length of the rocker, CD, such that it moves 45 degrees between its two extreme positions.
Choose the length of the coupler, BC, such that the mechanism is a crank-rocker linkage and the motion of the rocker is as desired.

Here is a sketch of the linkage:

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions