可靠性概率分布

南京航空航天大學(xué)民航學(xué)院系統(tǒng)可靠性設(shè)計(jì)與分析南京航空航天大學(xué)民航學(xué)院系統(tǒng)可靠性設(shè)計(jì)與分析南京航空航天大學(xué)民航學(xué)院系統(tǒng)可靠性設(shè)計(jì)與分析南京航空航天大學(xué)民航學(xué)院系統(tǒng)可靠性設(shè)計(jì)與分析第第#頁共23頁第第2l頁共23頁f=1/x/b/sqrt(2*PI)*exp(-0.5*(log(x)-a)/b*(log(x)-a)/b);/*計(jì)算*/F=F+f*0.1;R=1-F;FailureRate=f/R;fprintf(fp,"%3.41f\t%3.41f\t%3.41f\t%3.41f\t%3.41f\n",x,f,F,R,FailureRate);/*寫數(shù)據(jù)*/}x=0;f=0;F=0;R=0;/*重置計(jì)算值*/printf("\t計(jì)算完畢\n\n");printf("要繼續(xù)計(jì)算下一組對數(shù)正態(tài)分布數(shù)據(jù)點(diǎn)嗎？\n");/*是否繼續(xù)?*/printf(”繼續(xù)請按l\t否則按0\n");scanf("%lf",&t);if(t==0)break;}system("cls");/*清屏*/fclose(fp);/*關(guān)閉文件*/}voidWeibull_FenBu()/*威布爾分布*/{doublex,f,F,R,FailureRate,a,b,c,t;x=0;f=0;F=0;R=0;FailureRate=0;FILE*fp;fp=fopen("c:倣布爾分布.xls","a");/*以追加寫方式打開文件*/if(fp==NULL){printf("Cannotopenthefile4!\n");return;}printf(”您選擇威布爾分布\n\n");for(;;){printf("請輸入?yún)?shù)：形狀參數(shù)尺度參數(shù)位置參數(shù)5”)；scanf("%lf%lf%lf",&a,&b,&c);/*輸入數(shù)據(jù)*/if(a<=0||b<=0){printf("數(shù)據(jù)無效！請重新輸A\n");/*數(shù)據(jù)無效*/continue;fprintf(fp,"威布爾分布\n形狀參數(shù)為％lf尺度參數(shù)為％lf位置參數(shù)為％lf\n",a,b,c);fprintf(fp,”x\tf(x)\tF(x)\tR(x)\t失效率\n");for(x=c+0.1;x<=c+4;x+=0.1){f=a/b*pow(((x-c)/b),(a-1))*exp(-1*pow((x-c)/b,a));/*計(jì)算*/F=1-exp(-1*pow((x-c)/b,a));R=1-F;FailureRate=f/R;fprintf(fp,”％3.41f\t%3.41ft%3.41f\t%3.41f\t%3.41f\n”,x,f,F,R,FailureRate);/*寫數(shù)據(jù)*/}x=0;f=0;F=0;R=0;/*重置計(jì)算值*/printf(”\t計(jì)算完畢\n\n");printf(”要繼續(xù)計(jì)算下一組威布爾分布數(shù)據(jù)點(diǎn)嗎？\n");/*是否繼續(xù)?*/printf(”繼續(xù)請按l\t否則按0\n”)；scanf("%lf",&t);if(t==0)break;}system("cls");/*清屏*/fclose(fp);/*關(guān)閉文件*/}voidmain（）{intm;printf（"本程序功能為:\n\n計(jì)算指數(shù)分布正態(tài)分布對數(shù)正態(tài)分布威布爾分布\n\n"）;printf（”\t\t的5\『）；printf（”失效概率密度函數(shù)可靠度不可靠度失效率的離散點(diǎn)數(shù)據(jù)\n\n”）；printf（"離散點(diǎn)數(shù)據(jù)會被寫入excel表格中\(zhòng)n\n"）;/*功能說明*/for（;;）{printf（"請選擇要計(jì)算的分布類型前對應(yīng)的數(shù)字（1?4）\n\n"）;/*選擇分布類型*/printf（"\t1.指數(shù)分布\n\t2.正態(tài)分布\n\t3.對數(shù)正態(tài)分布\n\t4.威布爾分布\n\t0.退出\n"）;scanf（"%d",&m）;switch（m）/*根據(jù)輸入調(diào)用函數(shù)*/{case1:{ZhiShu_FenBu();break;}case2:{ZhengTai_FenBu();break;}case3:{DuiShuZhengTai_FenBu();break;}case4:{Weibull_FenBu