adams里的三角波函数---[图，求助]

weiliao

想要在刚体上加一个如附件中所示函数（周期函数）的力，请问那位高手能帮忙把这个函数编出来，谢谢啊！急啊！

robi

step(time,0,0,t1,y1)+step(time,t1,0,t2,0)+step(time,t2,0,t3,-y1)+step(time,t3,0,t4,0)+step(time,t4,0,t5,y2)+step(time,t5,0,t6,0)
tx为图中每一个时间点，y1为y轴的值
% W- Z/ i* r/ z7 C你试试，不知道对不

miao400044

step(time,0,0,t1,y1)+step(time,t2,0,t3,-y1)+step(time,t4,0,t5,y2)