关于两个圆柱体的接触分析，为什么跟书中例题的结果不一样呢？

我把我的命令贴出来：
finish
/clear
/PREP7
!*
ET,1,PLANE183
!*
ET,2,SOLID186
!*
ET,3,TARGE170
!*
ET,4,CONTA174
!*
KEYOPT,4,1,0
KEYOPT,4,2,0
KEYOPT,4,4,0
KEYOPT,4,5,1
KEYOPT,4,6,0
KEYOPT,4,7,0
KEYOPT,4,8,0
KEYOPT,4,9,0
KEYOPT,4,10,0
KEYOPT,4,11,0
KEYOPT,4,12,0
KEYOPT,4,14,0
KEYOPT,4,15,0
KEYOPT,4,16,0
!*
R,1,,,0.1, ,,
!*
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,2E+11
MPDATA,PRXY,1,,0.3
CYL4,0,0,0.1,0,0,90
CYL4,0,0.15,0.05,-90,0,0
wpof,0.010000
wpro,,,90.000000
ASBW,ALL
AATT, 1, 1, 1, 0,
ESIZE,0.0075,0,
MSHKEY,0
AMESH,ALL
KREFINE,2,4,2,3,1,1,1
TYPE, 2
MAT, 1
REAL, 1
ESYS, 0
SECNUM,
TYPE, 2
EXTOPT,ESIZE,5,0,
EXTOPT,ACLEAR,1
EXTOPT,ATTR,0,0,0
MAT,1
REAL,1
ESYS,0
VEXT,ALL, , ,0,0,0.01,,,,
ASEL,S, , , 14
NSLA,S
TYPE, 3
MAT, 1
REAL, 1
ESYS, 0
SECNUM,
TSHAP,LINE
ESURF
ALLSEL,ALL
ASEL,S, , , 18
NSLA,S
TYPE, 4
MAT, 1
REAL, 1
ESYS, 0
SECNUM,
TSHAP,LINE
ESURF
ASEL,S,,,8,16,8,0
DA,ALL,UY
ASEL,S,,,15,20,5,0
DA,ALL,UX
ASEL,S,,,1, , ,0
ASEL,A,,,9, , ,0
ASEL,A,,,13, , ,0
ASEL,A,,,17, , ,0
DA,ALL,UZ
ASEL,S,,,11,19,8,0
NSLA,S,1
SF, ,PRES,1e6
CP,1,UY,ALL
但是最后结果显示，好像接触单元和目标单元覆盖面积比期望的小，没有覆盖整个接触面，跟书上给的结果也不同。
我也按书上步骤用GUI方式试过，结果一样。
请高手指教！