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L10 = 10×（
6
940003
）/（60×39）= 10436 h 324005.2 齿刀强度的校核分析
在本设计中，采用了计算机辅助设计软件对齿刀的强度进行了分析，由软件分析结果可以知道，该冰雪清除机的齿刀强度完全可以满足要求。其分析结果以及源程序如下：
Analysis1.CATAnalysis MESH:
Entity Nodes Elements Size 1695 6132 ELEMENT TYPE:
Connectivity TE4 Statistics 6132 ( 100.00% ) ELEMENT QUALITY:
Criterion Good Poor Bad Worst Avera 共 64 页 第 31 页
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Skewness 5860 ( 95.56% ) 268 ( 4.37% ) 4 ( 0.07% ) 0.936 0.449 Jacobian 6132(100.00% ) 6132 0( 0.00% ) 0( 0.00% ) 1.000 1.000 Stretch ( 100.00% ) 6132 Min. Length ( 100.00% ) 6132 Max. Length ( 100.00% ) Shape Factor Length Ratio 6132 0 ( 0.00% ) 0 ( 0.00% ) 0.346 0.622 0 ( 0.00% ) 0 ( 0.00% ) 1.362 7.457 0 ( 0.00% ) 0 ( 0.00% ) 22.224 14.041 0 ( 0.00% ) ( 100.00% ) 6132 0 ( 0.00% ) ( 100.00% ) 0 ( 0.00% ) 0.395 0.677 0 ( 0.00% ) 4.058 1.965 Properties.1
Material Steel.1.1 ( ASTM-A36 ) : Structural Young Modulus Poisson Ratio 2e+011N_m2 0.266 共 64 页 第 32 页
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Static Case Boundary Conditions
STRUCTURE Computation
Number of nodes Number of elements Number of D.O.F.
Number of Contact Elements Number of Kinematic relations
: : : : :
1695 6132 5085 0 0
RESTRAINT Computation
Name: RestraintSet.1 Number of S.P.C : 696
LOAD Computation
Name: LoadSet.1
Applied load resultant
Fx Fy Fz Mx My Mz
= = = = = =
-1 -1 -3 1 -1 2
. . . . . .
054e+000 905e+001 452e-016 852e+000 048e-001 138e+000
N N N Nxm Nxm Nxm
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STIFFNESS Computation
Number of lines Number of coefficients Number of blocks
Maximum number of coefficients per bloc Total matrix size
: : : : :
5085 91467 1 91467 1
.
07
Mb
SINGULARITY Computation
Restraint: RestraintSet.1
Number of local singularities Number of singularities in translation
Number of singularities in rotation
Generated constraint type
: :
0 0
: :
0 MPC
CONSTRAINT Computation
Restraint: RestraintSet.1
Number of constraints
Number of factorized constraints Number of deferred constraints
: : :
696 696 0
NUMBERING Computation
Restraint: RestraintSet.1
Numbering Method Number of connected nodes Nodal maximum front width
: : :
SLOAN 1695 87
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Nodal maximum band width : 540
FACTORIZED Computation
Method Number degrees
Number of supernodes Number of overhead indices Number of coefficients Maximum front width Maximum front size Size of the factorized matrix (Mb) Number of blocks Number of Mflops for factorization
Number of Mflops for solve Minimum relative pivot
of
factorized
: : : : : : : : : : : :
SPARSE 4389 829 33252 360015 294 43365 2 1 5 1 6
. . . .
016e+001 444e+000 668e-002 7467
DIRECT METHOD Computation
Name: StaticSet.1
Restraint: RestraintSet.1 Load: LoadSet.1
Strain Energy : 3.923e-007 J
Equilibrium
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