It's been over 2 decades since I took my only mechanical engineering course.
Don't such diagrams have arrows, that it, line segments with triangles at
one end of the segments so they appear like arrows? If so, you won't be able
to do this with Excel charts alone because there's no support for the arrow
heads. You might be able to hack something with arrow drawing objects, but
programming that to overlay charts would be extremely difficult.
Can you be more specific? Do you already know how to do them or are you
hoping there is a workbook that somebody has made and you can just "plug &
chug"? Do you want to do this programatically (VBA) or just create a
workbook to enter values in?