I mean, make my own maple code into a .exe file

@taro very good, simplier than converting to latex code

My major is structural engineering,

The left support provides two constraints, horizontal and vertical, without rotational.

Can you give some detail on the right support? If it is a spring, what's the elastic coefficient of it?

Is it a rotational spring? it looks like a constraint on vertical only.

The force applied on the beam has nothing to do with the frequencies... Or is that distribution force the gravity?

@jjweimer I'm using Windows 7,

@Preben Alsholm 

I was wrong,it should be k=a+b*c=2+4*4=18