Chapter_1_solutions

《Chapter_1_solutions 》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、Chapter1Problems1-1through1-6areforstudentresearch.Nostandardsolutionsareprovided.1-7FromFig.1-2,costofgrindingto0.0005inis270%.Costofturningto0.003inis60%.Relativecostofgrindingvs.turning=270/60=4.5timesAns._______________________________________________

2、_______________________________1-8CA=CB,210+0.8P=60+0.8P0.005P2P=50/0.005P=100partsAns.______________________________________________________________________________1-9Max.load=1.10P2Min.area=(0.95)AMin.strength=0.85STooffsettheabsoluteuncertainties,thede

3、signfactor,fromEq.(1-1)shouldbe1.10nA1.43ns.d20.850.95______________________________________________________________________________1-10(a)X1+X2:xxXeXe121122errorexxXX1212eeAns.12(b)X1X2:xxXeXe121122exxXXeeA121212ns.(c)

4、X1X2:xx12X1e1X2e2exxXXXeXeee1212122112ee12XeXeXXAns.122112XX12Chapter1Solutions-Rev.B,Page1/6(d)X1/X2:xXeXeX1111111xXeXeX12222221ee1eXeeee2211121211then111XXe1XXXXX22221212xXXee11112Thu

5、s,eAns.xXXXX22212______________________________________________________________________________1-11(a)x1=7=2.6457513111X1=2.64(3correctdigits)x2=8=2.8284271247X2=2.82(3correctdigits)x1+x2=5.4741784358e1=x1X1=0.0057513111e2=x2X2=0.0084271247e=e1+e2

6、=0.0141784358Sum=x1+x2=X1+X2+e=2.64+2.82+0.0141784358=5.4741784358Checks(b)X1=2.65,X2=2.83(3digitsignificantnumbers)e1=x1X1=0.0042486889e2=x2X2=0.0015728753e=e1+e2=0.0058215642Sum=x1+x2=X1+X2+e=2.65+2.830.0015728753=5.4741784358Checks_________________

7、_____________________________________________________________3S16100025101-12dA0.799inns.3nd2.5dTableA-17:d=7inAns.83S2510Factorofsafety:nA3.29ns.161000378______________________________________________________________________________n1

8、-13Eq.(1-5):R=Ri=0.98(0.96)0.94=0.88i1Overallreliability=88percentAns.______________________________________________________________________________Chapter1Solutions-Rev.B,Page2/61-14a=1.5000.001inb