Recent content by lightspd

Bump! Sorry I have cross-posted this in the coursework forum, many reads but no answers :-( Is no one able to help me with this? When I google, I only find articles related to compression springs. Why is it so difficult to find stuff on main-springs? Can someone recommend a good book on the...

Bump! nobody knows the answer to this?

Homework Statement How do I calculate the energy density of either a main-spring (like in a clock) or a motor-spring? Can someone show me values put into the correct formula for something like e.g. steel? I did find some material properties like this...

A concrete example I would very much like to see is something like this: Take an acrylic ruler. it is 30 cm long, 3 cm wide and 2mm thick. It weighs 20grams (just estimated for this example). Acrylic has Youngs Modulus of 3.2 GPa and ultimate Tensile Strength of 70 Mpa (according to the page I...

Hi, How do I calculate the energy density of either a main-spring (like in a clock) or a motor-spring? Can someone show me values put into the correct formula for something like steel? I did find some material properties like this...