- #1
blitzzz
- 5
- 0
Hi.
I'm working with a spring-mass-damper-system problem but the thing is.. i can't figure out whether it is a single degree of freedom system(SDOF) or multi-degree of freedom system(MDOF). The question begins with a seat that is supported by a spring and also a damper. A man of 60 kg then sits on it. If the man slips off the seat withour imparting any vertical impulse to it, determine the expression for the ensuing motion of the seat against time.
Is the 60kg weight counted as an excitation force? Any form of help will be greatly appreciated.
Regards,
Joel
I'm working with a spring-mass-damper-system problem but the thing is.. i can't figure out whether it is a single degree of freedom system(SDOF) or multi-degree of freedom system(MDOF). The question begins with a seat that is supported by a spring and also a damper. A man of 60 kg then sits on it. If the man slips off the seat withour imparting any vertical impulse to it, determine the expression for the ensuing motion of the seat against time.
Is the 60kg weight counted as an excitation force? Any form of help will be greatly appreciated.
Regards,
Joel