I have an application where a person drives a bush into its housing using a hammer of about 3kgs. Suppose the same application is to be done with a hydraulic press,is it possible to calculate the press tonnage(probably using an approximated calculation of the kinetic energy of the hammer). TIA Thomas


1 Answer 1


Let's say that your hammer strike, moving at a speed of 4 meters/s, drives the bushing into its housing by 1 centimeter .

Therefore the kinetic energy of hammer $ K_e=\frac{1}{2}m*v^2 $ has Been used to move the bushing. Annotating "d" as the distance the bushing travels and ignoring its weight.

$$ F_{average}d=- \frac{1}{2}m*v^2 \\ F_{average}= \frac{ \frac{1}{2}m*v^2}{d} $$

$$F_{press}= \frac{\frac{1}{2}3kg*4^2}{1cm}*\frac{100cm}{1meter}=2400kg $$


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.