有限元的单位

1 ( ) m s kg - N Pa MPa mm MPa m ; L ; t; T v = L / t; a = L / t2 ; A = L2 ; V = L3 ; = m / L3 ; f = m a = m L / t2 ; e = f L = m L2 / t2 ; p = f / A = m / (t2 L) ; = e / t = m L2 / t3 ; k = / (L T) = m L/ (t3 T); c = e / (m T) = L2 / (t2 T); Cv = e / (L2 T t) = m / (t3 T) Kv = p t = m / (t L) ; S = e / T = m l2/ (t2 T); s = S / m = l2/ (t2 T); 1 m kg L mm : ( http:/www.S/ - 1 - ) 1 S K ( K C ) kg-m-S v = L / t = mm / S = 10 -3m / S ; a = L / t2= mm / S2= 10 -3m / S2 ; A = L2 = mm2= 10 -6m2 ; V = L3 = mm3= 10 -9m3 ; = m / L3 = kg / mm3= 10 -9kg / m3= 10 -6g / cm3 ; f = m L / t2 = kg mm / S2 = 103kg m / S2 = mN ( ); e = m L2 / t2= kg mm2/ S2 = 106kg m2/ S2 = J ( ); p = m / (t2 L) = kg / (S2 mm) = 103kg / (S2 m) = kPa ( ); = m L2 / t3= kg mm2/ S3 = 106kg m2/ S3 = w ( ); k = m L/ (t3 T) = kg mm / (S3 K)= 103kg m / (S3 K); c = L2 / (t2 T) = mm2/ (S2 K)= 106m2/ (S2 K); Cv = m / (t3 T) = kg / (S3 K); Kv = m / (t L) = kg / (S mm) = 103kg / (S mm); S = m L2/ (t2 T) = kg mm2/ (S2 K)= 10-6kg m2/ (S2 K); s= L 2/ (t2 T) = mm2/ (S2 K)= 10-6m2/ (S2 K); 2 m g L m (106m) mS (103 S) K (K C ) kg-m-S v = L / t = m / mS = 10 -3m / S ; a = L / t2= m / mS2= m / S2 ; A = L2 = m2= 10 -12m2 ; V = L3 = m3= 10 -18m3 ; = m / L3 = g / m3= 10 -21kg / m3= 10 -12g / cm3 ; f = m L / t2 = g m / mS2 = 103kg m / S2 = mN ( ); e = m L2 / t2= g m2/ mS2 = 109kg m2/ S2 = 109J ( ); p = m / (t2 L) = g / (mS2 m) = 109kg / (S2 m) = 109Pa ( ) = GPa; = m L2 / t3= g m2/ mS3 = 106kg m2/ S3 = 106w ( ); k = m L/ (t3 T) = g m / (mS3 K)= kg m / (S3 K); c = L2 / (t2 T) = m2/ (mS2 K)= 106m2/ (S2 K); Cv = m / (t3 T) = g / (mS3 K) = 103kg / (S3 K); Kv = m / (t L) = g / (mS m) = 106kg / (S mm); S = m L2/ (t2 T) = g m2/ (mS2 K)= 10-9kg m2/ (S2 K); s = L 2/ (t2 T) = m2/ (mS2 K)= 10-6m2/ (S2 K); 1 2 kg-m-S : ( http:/www.S/ - 2 - ) 1 1 Kg-m-s Kg-mm-s T-mm-s g-mm-s 1 L L m Mm (10-3m) Mm (10-3m) Mm (10-3m) 2 M M Kg Kg T (103Kg) g (10-3Kg) 3 t t s s s s 4 T T K K K K 5 A L2 m2 mm2 (10-6m2 ) mm2 (10-6m2 ) mm2 (10-6m2 ) 6 V L3 m3 mm3 (10-9m3 ) mm3 (10-9m3 ) mm3 (10-9m3 ) 7 F M L / t2 N ( ) =Kg m / s2 Kg mm / s2 (10-3N) T mm / s2 (N) g mm / s2 (10-6N) 8 M / L3 Kg / m3 (10-3g / cm3 ) Kg / mm3 (106g / cm3 ) T / mm3 (109g / cm3 ) g / mm3 (103g / cm3 ) 9 M L2/ t2 J ( ) = N m = Kg m2 / S2 Kg mm2 / S2 (10-6J) T mm2 / S2 (10-3J) g mm2 / S2 (10-9J) 10 m L2 / t3 w ( ) = J / S = kg m2/ S3 kg mm2/ S3 (106w) T mm2/ S3 (103w) g mm2/ S3 (109w) 11 M / (t2 L) Pa = N / m2 = Kg / (s2 m) Kg / (s2 mm) (kPa) T / (s2 mm) (MPa) g / (s2 mm) (Pa) 12 k M L / (t3 K) J / (m s K) = (Kg m / (s3 K) Kg mm / (s3 K) (10-3Kg m / (s3 K) T mm / (s3 K) (Kg m / (s3 K) g mm / (s3 K) (10-6Kg m / (s3 K) 13 c L2/ (t2 K) J / (Kg K) = (m2 / (s2 K) mm2 / (s2 K ) (10-6m2/ (s2 K ) ) mm2 / (s2 K ) (10-6m2/ (s2 K ) ) mm2 / (s2 K ) (10-6m2/ (s2 K ) ) 14 h M / (t2 L) J / m3= (Kg / (s2 m) Kg / (s2 mm) (103Kg / (s2 m) ) T / (s2 mm) (106Kg / (s2 m) ) g / (s2 mm) (1.0 Kg / (s2 m) ) 15 Cv M / (t3 K) J / (m2 s K) = (Kg / (s3 K) Kg / (s3 K) (Kg / (s3 K) T / (s3 K) (103Kg / (s3 K) g / (s3 K) (10-3Kg / (s3 K) 16 Kv M / (L t) Kg / (m s) Kg/(mm s) (103Kg /(m s) ) T / (mm s) (106g / (m s) ) g / (mm s) (1.0 g / (m s) ) 17 S M L2/ (t2 K) J / K = (Kg m2 / S2 K) Kg mm2 / S2 K (10-6 Kg m2 / S2 K) T mm2 / S2 K (10-3 Kg m2 / S2 K) g mm2 /S2 K (10-9 Kg m2 / S2 K) 18 s L2/ (t2 K) J / (Kg K ) = (m2 / S2 K) mm2 / S2 K (10-6 m2 / S2 K) mm2 / S2 K (10-6 m2 / S2 K) mm2 / S2 K (10-6 m2 / S2 K) : ( http:/www.S/ - 3 - ) 1 2 Kg-m-s (Kg-m-s ) Kg-m-s kg-m-s Kg-mm-s kg-m-s T-mm-s kg-m-s g-mm-s 1 L m Kg-mm-s 10-3 Kg-m-s 103 Kg-m-s 103 Kg-m-s 103 2 M Kg g-cm-s 103 Kg-m-s 1.0 Kg-m-s 10-3 Kg-m-s 103 3 t s Kg-mm-s 1.0 Kg-m-s 1.0 Kg-m-s 1.0 Kg-m-s 1.0 4 Kg-mm-s 1.0 Kg-m-s 1.0 Kg-m-s 1.0 Kg-m-s 1.0 5 L2 m2 Kg-mm-s 10-6 Kg-m-s 106 Kg-m-s 106 Kg-m-s 106 6 L3 m3 Kg-mm-s 10-9 Kg-m-s 109 Kg-m-s 109 Kg-m-s 109 7 M L / t2 N=Kg m / s2 Kg-mm-s 10-3 Kg-m-s 103 Kg-m-s 1.0 Kg-m-s 106 8 M / L 3 Kg / m 3 g-cm-s 103 g-cm-s 10-6 g-cm-s 10-9 g-cm-s 10-3 9 M L2/ t2 J=Kg m2/ s2 Kg-mm-s 10-6 Kg-m-s 106 Kg-m-s 103 Kg-m-s 109 10 m L2 / t3 w = kg m2/S3 Kg-mm-s 10-6 Kg-m-s 106 Kg-m-s 103 Kg-m-s 109 11 M / (t2 L)Pa=Kg/(s2 m) Kg-mm-s 106 Kg-m-s 10-3 Kg-m-s 10-6 Kg-m-s 1.0 12 M L / (t3 K)Kg m/ (s3 K) Kg-m-s 10-3 Kg-m-s 103 Kg-m-s 1.0 Kg-m-s 106 13 L 2/ (t2 K)m 2/ (s2 K) Kg-mm-s 10-6 Kg-m-s 106 Kg-m-s 106 Kg-m-s 106 14 M / (t2 L) Kg / (s2 m) Kg-mm-s 103 Kg-m-s 10-3 Kg-m-s 10-6 Kg-m-s 1.0 15 M / (t3 K) Kg / (s2 K) Kg-mm-s 1.0 Kg-m-s 1.0 Kg-m-s 10-3 Kg-m-s 103 16 M / (L t) Kg / (m s) Kg-mm-s 103 Kg