In the fourbar mechanism as in the following picture, I have to find the toggle position, the sliding distance and the time ratio.
Here is my understanding/plan to do this:
- The toggle positions ("extreme ends") of the slider (block B) take place at 2 time, when link 3 and "offset" are aligned, and when link 3 and 2 are aligned.
- The sliding distance can be calculated via trigonometry from the above conclusion
- Assume the working cycle is the part where block B moves from left to right, I have to find the working angle of this movement at crank ($\beta$), the time ratio would be $\frac{360-\beta}{\beta}$.
Am I right in my understanding so far? If not, where do I have it wrong. And then, how do I obtain the value for $\beta$