Методика расчета тягово-скоростных свойств и топливной экономичности автомобиля на стадии проектирования. Вохминов Д.Е - 36 стр.

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LZ[ebpZ
JZkq_lwe_f_glh\lhieb\gh]hbkbeh\h]h[ZeZgkZ
WE?F?GLU E_]dh\hc =jmah\hc :\lhih_a^
12 3 4
dhe_kZ
-
d
==
d]f
2
-
d
==
d]f
2
-
d
==
d]f
2
we_f_glh\
ljZgkfbkkbb
J
lj
= 0,91
2
 d]f
2
J
lj
= 26,5
6
 d]f
2
J
lj
= 15,5
2
 d]f
2
Fhf_glu
bg_jpbb
^\b]Zl_ey
()


-
^\
=
+=
d]f
2
()


-
^\
=
+=
d]f
2
()


-
^\
=
+=
d]f
2
Kdhjhklv 9 dfq 9 dfq 9 dfq
Wd\b\Ze_glgZyfZkkZ
d]


*
wd\
=
=
++
+=
d]


*
wd\
=
=
++
+=
d]


*
wd\
=
=
++
+=
:wjh^bgZfbq_kdh_
khijhlb\e_gb_



J
Z
=
=
G



J
Z
=
=
G



J
Z
=
=
G
Khijhlb\e_gb_
dZq_gbxrbg



I
R
R
=
++
=
G

3
I
=+
+
+=



I
R
R
=
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=
G

3
I
=+
+
+=



I
R
R
=
++
=
G

3
I
=+
+
+=
Khijhlb\e_gby\
ljZgkfbkkbb
()
()
G
J
lj
=++
++=
()
()
G
J
lj
=++
++=
()
()
G
J
lj
=++
++=
                                                                                                                                                                 LZ[ebpZ

                                                 JZkq_lwe_f_glh\lhieb\gh]hbkbeh\h]h[ZeZgkZ

    WE?F?GLU                             E_]dh\hc                                   =jmah\hc                                      :\lhih_a^
        1                                    2                                          3                                             4
         dhe_kZ                         
                    - d =  ⋅  =  d]f     2                             
                                                                   - d =  ⋅  =  d]f 2                               
                                                                                                               - d =  ⋅  =  d]f2
         we_f_glh\
                    Jlj = 0,91⋅2⋅ d]f2                 Jlj = 26,5⋅6⋅ d]f2               Jlj = 15,5⋅2⋅ d]f2
Fhf_glu ljZgkfbkkbb
bg_jpbb
                    - ^\ =  +
                                  ( ⋅ ) ⋅  =  - =  + ( ⋅ ) ⋅  =         - ^\ =  +
                                                                                                                            ( ⋅  ) ⋅  = 
         ^\b]Zl_ey                                                   ^\
                                                                                                                                  
                                                            d]f 2
                                                                                                        d]f 2
                                                                                                                                                        d]f2
     Kdhjhklv                        9 dfq                                   9 dfq                                   9 dfq
                                             +  +  ⋅                           +  +  ⋅                           +  +  ⋅  
                           * wd\ =  +                                  = * wd\ =  +                                   = * wd\ =  +                            =
Wd\b\Ze_glgZyfZkkZ                                                                                                                               
                                                           =  d]                                       =  d]                                       =  d]
                                                                                                                                                                  
                                                                                                                                               
:wjh^bgZfbq_kdh_                    ⋅ ⋅ ⋅                         ⋅ ⋅  ⋅                          ⋅ ⋅  ⋅      
khijhlb\e_gb_                                                                                                                                
                           JZ =                                 =  G J Z =                               =  G J Z =                                =  G
                                                                                                                                           
                                   +  ⋅  +                                                                   +  ⋅  + 
                           I RR =                                 =  I RR =  +  ⋅  +  =      I RR =                            = 
                                                                                                                              
Khijhlb\e_gb_                                                                                                                                              
                                                                                                                                                                  
                                                                                                                     
                                                                                                                         
                                                      −                                                −                              
dZq_gbxrbg                3I =  ⋅   +  ⋅          +          3I =  ⋅  +  ⋅ ⋅         + 3I =  ⋅   +  ⋅        +
                                                                                                                                           
                                             + ⋅  =  G                           + ⋅ =  G                          +  ⋅  =  G
Khijhlb\e_gby\            J lj =  ⋅  ( +  ⋅  ) +          J lj =  ⋅  ( +  ⋅  ) +         J lj =  ⋅  ( +  ⋅  ) +
ljZgkfbkkbb                            +  (  +   ) =   G           + (  +   ) =   G             + (  +   ) =   G