clc
clear
M=[1234];???????
m=diag（M）;??????????%質量對角線矩陣
k=[?800???-800???0??????0????;
????-800??2400???-1600??0????;
????0?????-1600???4800?-3200?;
????0?????0??????-3200?8000??];????%計算剛度矩陣
c=0.05*m+0.02*k;%c=2*m*0.05*sqrt（k/m）?;????????????
f0=?100;
t1=5;????????????????%力的作用時間?????????????????
nt=2000;??????????????%分2000步完成???????????????
dt=0.01;??????????????%時間步長???????????????
alfa=0.25;?????????????%γ=0.25???????????
beta=0.5;??????????????%β=0.5????????????

a0=1/alfa/dt/dt;?????????%??????????????
a1=beta/alfa/dt;?????????%?
a2=1/alfa/dt;????????????%?
a3=1/2/alfa-1;????????????%?
a4=beta/alfa-1;??????????%?
a5=dt/2*（beta/alfa-2）;?????%??
a6=dt*（1-beta）;?????????%?
a7=dt*beta;????????????%??
d=zeros（4nt）;???????????%初位移為0?????????????????
v=zeros（4

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-03-24?15:35??matlab程序\
?????目錄???????????0??2016-03-24?14:57??matlab程序\Newmark數值分析法\
?????文件????????2783??2016-03-24?11:10??matlab程序\Newmark數值分析法\Newmark_suanfa.m
?????目錄???????????0??2016-03-24?14:57??matlab程序\龐加萊截面圖法\
?????文件?????????124??2016-03-24?08:59??matlab程序\龐加萊截面圖法\zjzdfun.m
?????文件?????????732??2016-03-24?13:56??matlab程序\龐加萊截面圖法\zjzd_solution.m
?????目錄???????????0??2016-03-24?14:57??matlab程序\線加速度法求系統振動響應\
?????文件????????1072??2016-03-24?14:23??matlab程序\線加速度法求系統振動響應\M635_1.m
?????目錄???????????0??2016-03-24?15:35??matlab程序\計算多自由度系統模態質量模態剛度矩陣\
?????文件????????1195??2016-03-24?15:34??matlab程序\計算多自由度系統模態質量模態剛度矩陣\jisuanduoziyouduxitong.m
?????目錄???????????0??2016-03-24?14:56??matlab程序\里茲法求多自由度系統前兩階固有頻率及振型\
?????文件?????????951??2016-03-24?14:47??matlab程序\里茲法求多自由度系統前兩階固有頻率及振型\lizifaqiuguyoupinlv.m
?????目錄???????????0??2016-03-24?14:55??matlab程序\雨流計數法\
?????文件????????9216??2013-12-09?16:56??matlab程序\雨流計數法\rainflow.dll
?????文件?????????926??2013-12-09?16:56??matlab程序\雨流計數法\rainflow.m
?????文件?????????896??2016-01-18?10:32??matlab程序\雨流計數法\rfdemo2.m
?????文件????????1941??2013-12-09?16:56??matlab程序\雨流計數法\rfhist.m
?????文件????????3151??2013-12-09?16:56??matlab程序\雨流計數法\rfmatrix.m
?????文件????????2944??2013-12-09?16:56??matlab程序\雨流計數法\sig2ext.m
?????文件??????????19??2016-03-24?14:55??matlab程序\雨流計數法\運算說明.txt
?????目錄???????????0??2016-03-24?14:58??matlab程序\頻譜圖法\
?????文件?????????292??2016-01-22?19:39??matlab程序\頻譜圖法\pinputu.m