???????30tx100t??100sinty1、的电当电源压波形求，解表达式，且dy???0y1y?31?4x?用simulink动态仿真和S函数两种方。，其中dt??ty的波形。法，建立系统仿真模型，求解1）（）2（．[sys,x0,str,ts,simStateCompliance]=sfun1(t,x,u,flag)functionflag,switch0,case[sys,x0,str,ts,simStateCompliance]=mdlInitializeSizes;1,casesys=mdlDerivatives(t,x,u);2,casesys=mdlUpdate(t,x,u);3,casesys=mdlOutputs(t,x,u);4,casesys=mdlGetTimeOfNextVarHit(t,x,u);9,casesys=mdlTerminate(t,x,u);otherwise,num2str(flag));'Simulink:blocks:unhandledFlag'DAStudio.error(end[sys,x0,str,ts,simStateCompliance]=mdlInitializeSizesfunctionsizes=simsizes;sizes.NumContStates=1;sizes.NumDiscStates=0;sizes.NumOutputs=1;sizes.NumInputs=1;sizes.DirFeedthrough=1;sizes.NumSample=1;sys=simsizes(sizes);x0=1;str=[];ts=[00];;simStateCompliance='UnknownSimState'sys=mdlDerivatives(t,x,u)functionsys=4*100*sin(100*pi*t+30)+1-3*x;sys=mdlUpdate(t,x,u)functionsys=[];sys=mdlOutputs(t,x,u)functionsys=x;sys=mdlGetTimeOfNextVarHit(t,x,u)functionsampleTime=1;sys=t+sampleTime;sys=mdlTerminate(t,x,u)functionsys=[];已知末系统的状态方程如下：2、1?21?1?????????u?02?10xx?????????1003??????x3y?1?2建立仿真模型，且其输入为单位阶跃响应曲线。试用simulink）（12）（[sys,x0,str,ts]=sfun3(t,x,u,flag)functionflag,switch0,case[sys,x0,str,ts]=mdlInitializeSizes;1,casesys=mdlDerivatives(t,x,u);2,casesys=mdlUpdate(t,x,u);3,casesys=mdlOutputs(t,x,u);4,casesys=mdlGetTimeOfNextVarHit(t,x,u);9,casesys=mdlTerminate(t,x,u);otherwise,num2str(flag));DAStudio.error('Simulink:blocks:unhandledFlag'end[sys,x0,str,ts]=mdlInitializeSizesfunctionsizes=simsizes;sizes.NumContStates=3;sizes.NumDiscStates=0;sizes.NumOutputs=1;sizes.NumInputs=1;sizes.DirFeedthrough=0;sizes.NumSample=1;sys=simsizes(sizes);x0=[0;0;0];str=[];ts=[00];sys=mdlDerivatives(t,x,u)functionx(1)=1*x(1)-1*x(2)-2*x(3)+u;x(2)=2*x(2)-1*x(3);x(3)=3*x(3)+u;sys=x;sys=mdlUpdate(t,x,u)functionsys=[];sys=mdlOutputs(t,x,u)functionsys=1*x(1)-2*x(2)+3*x(3);sys=mdlGetTimeOfNextVarHit(t,x,u)functionsampleTime=1sys=t+sampleTime;sys=mdlTerminate(t,x,u)functionsys=[];????txty，3-饵食、捕食者模型：设食饵（如鱼，兔等）数量为，捕食者数量为有．??x?xayr???yd??ybx?????用simulink动态仿真和S2?25,00?yx.设r=1,d=0.5,a=0.1,b=0.02,????的图形。，函数两种方法，建立系统仿真模型，绘制ttxy[sys,x0,str,ts,simStateCompliance]=sfuntmpl2(t,x,u,flag)functionflag,switch0,case[sys,x0,str,ts,simStateCompliance]=mdlInitializeSizes;1,casesys=mdlDerivatives(t,x,u);2,casesys=mdlUpdate(t,x,u);3,casesys=mdlOutputs(t,x,u);4,casesys=mdlGetTimeOfNextVarHit(t,x,u);9,casesys=mdlTerminate(t,x,u);otherwise,num2str(flag));DAStudio.error('Simulink:blocks:unhandledFlag'end[sys,x0,str,ts,simStateCompliance]=mdlInitializeSizesfunctionsizes=simsizes;sizes.NumContStates=2;sizes.NumDiscStates=0;sizes.NumOutputs=2;sizes.NumInputs=0;sizes.DirFeedthrough=0;sizes.NumSample=1;sys=simsizes(sizes);x0=[25,2];str=[];ts=[00];;simStateCompliance='UnknownSimState'sys=mdlDerivatives(t,x,u)functiondx=zeros(2,1);dx(1)=x*(r-a*y);dx(2)=y*(-b+d*x);sys=dx;sys=mdlOutputs(t,x,u)functionsys=x;已知，求该方程的解。1?y?1,'(0)y22y''?y'?y?0,(0)4、用simulink动态仿真和S函数两种方法，建立系统仿真模型，绘????的图形。，制ttxy[sys,x0,str,ts,simStateCompliance]=sfuntmpl2(t,x,u,flag)functionflag,switch0,case[sys,x0,str,ts,simStateCompliance]=mdlInitializeSizes;1,casesys=mdlDerivatives(t,x,u);2,casesys=mdlUpdate(t,x,u);3,casesys=mdlOutputs(t,x,u);4,casesys=mdlGetTimeOfNextVarHit(t,x,u);9,casesys=mdlTerminate(t,x,u);otherwise,num2str(flag));DAStudio.error('Simulink:blocks:unhandledFlag'end[sys,x0,str,ts,simStateCompliance]=mdlInitializeSizesfunctionsizes=simsizes;sizes.NumContStates=1;sizes.NumDiscStates=0;sizes.NumOutputs=2;sizes.NumInputs=1;sizes.DirFeedthrough=1;sizes.NumSample=1;sys=simsizes(sizes);x0=25;str=[];ts=[00];;simStateCompliance='UnknownSimState'sys=mdlDerivatives(t,x,u)functionsys=4*100*sin(100*pi*t+30)+1-3*x;sys=mdlUpdate(t,x,u)functionsys=[];sys=mdlOutputs(t,x,u)functionsys=x;sys=mdlGetTimeOfNextVarHit(t,x,u)functionsampleTime=1;sys=t+sampleTime;sys=mdlTerminate(t,x,u)functionsys=[];阻尼器机械位移系统的动态方程为：已知弹簧-质量-5、2dxdx????t2d?5?xt?F2dtdt????tt?Fsin作用下的请建立此动态系统的仿真模型，然后分析系统在外力??tx。质量块的初始位移和初始速度均为系统响应即位移0。（将数据传输到工作空间，然后绘制位移图形。）
