Динамика двигателей внутренннего сгорания. Панов В.В - 19 стр.

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19
<_ebqbgZ
kj
i
M
aZ\bkbl hl lZdlghklb ^\b]Zl_ey b \_ebqbgu ]Zah\uo
kbeGZbaf_g_gb_fhf_glh\
max
i
M
b
min
i
M
\eby_l]eZ\gufh[jZahffh
f_gl
M
0
.
Ihkdhevdm oZjZdl_ju baf_g_gby bg^bdZlhjgh]h djmlys_]h fhf_glZ
L
0 bkmffZjgh]hfhf_glZ
khij
M khijhlb\e_gby^\b]Zl_eyg_h^bgZdh\u
m]eh\Zykdhjhklv
ω
\jZs_gbydhe_gqZlh]h\ZeZi_j_f_ggZ
Baf_g_gb_m]eh\hckdhjhklb
ω
aZpbdeoZjZdl_jbam_lkydhwnnbpb_g
lhf
δ
kl_i_gvx g_jZ\ghf_jghklb \jZs_gby dhe_gqZlh]h \ZeZkl_i_gvx
g_jZ\ghf_jghklboh^Z^\b]Zl_ey
kj
minmax
ω
ω−ω
=δ
, (4)
]^_
kjminmax
ωωω ,, – khhl\_lkl\_ggh fZdkbfZevgZy fbgbfZevgZy b
kj_^gyy m]eh\u_ kdhjhklb \jZs_gby dhe_gqZlh]h \ZeZ \ l_q_gb_ h^gh]h
jZ[hq_]hpbdeZ^\b]Zl_eyijbmklZgh\b\r_fkyj_`bf_
K^hklZlhqghc^eyijZdlbdblhqghklvxfh`ghkqblZlv
302
minmax
kj
n
π
=
ω+ω
=ω
. (5)
Lh]^Z
=δ
kj
minmax
ω
ω−ω
=
2
22
2
minmax
kj
ω
ω−ω
. (6)
<_ebqbgZdhwnnbpb_glZ
δ
baf_gy_lky\ij_^_eZo
- ^eyZ\lhfh[bevguo^\b]Zl_e_c
δ
=0,01...0,02;
- ^eyljZdlhjguo^\b]Zl_e_c
δ
=0,003...0,01.
IjbjZkq_lZo^\b]Zl_ey\qZklghklbfZoh\bdZ\_ebqbgZ
δ
aZ^Z_lky\
ij_^_eZomdZaZgguoagZq_gbcGZijZdlbd_
δ
hij_^_eyxlwdki_jbf_glZev
gufiml_f
<eZ[hjZlhjbb^bgZfbdb^\b]Zl_e_c^eywlhcp_ebbkihevam_lkyki_
pbZevgZybaf_jbl_evgZykbkl_fZjbk
<__khklZ\\oh^yl
- ijyfham[Zyr_kl_jgymklZgZ\eb\Z_fZygZo\hklh\bd_dhe_gqZlh
]h\ZeZ
- bg^mdlb\guc^ZlqbdmklZgh\e_gguc\[ebabam[v_\r_kl_jgb
- we_dljhggucnhjfbjh\Zl_evbfimevkh\ 
     <_ebqbgZ M i kj aZ\bkbl hl lZdlghklb ^\b]Zl_ey b \_ebqbgu ]Zah\uo
kbeGZbaf_g_gb_fhf_glh\ M i max b M i min \eby_l]eZ\gufh[jZahffh
f_gl 0 M .
    Ihkdhevdm oZjZdl_ju baf_g_gby bg^bdZlhjgh]h djmlys_]h fhf_glZ
0 L bkmffZjgh]hfhf_glZ M khij khijhlb\e_gby^\b]Zl_eyg_h^bgZdh\u
m]eh\Zykdhjhklv ω \jZs_gbydhe_gqZlh]h\ZeZi_j_f_ggZ
    Baf_g_gb_m]eh\hckdhjhklb ω aZpbdeoZjZdl_jbam_lkydhwnnbpb_g
lhf δ  kl_i_gvx g_jZ\ghf_jghklb \jZs_gby dhe_gqZlh]h \ZeZ kl_i_gvx
g_jZ\ghf_jghklboh^Z^\b]Zl_ey 
                                  ω     − ωmin
                               δ = max         ,                       (4)
                                       ωkj
]^_ ωmax , ωmin , ωkj – khhl\_lkl\_ggh fZdkbfZevgZy fbgbfZevgZy b
kj_^gyy m]eh\u_ kdhjhklb \jZs_gby dhe_gqZlh]h \ZeZ \ l_q_gb_ h^gh]h
jZ[hq_]hpbdeZ^\b]Zl_eyijbmklZgh\b\r_fkyj_`bf_
    K^hklZlhqghc^eyijZdlbdblhqghklvxfh`ghkqblZlv
                                 ω    + ωmin πn
                            ωkj = max        =    .                     (5)
                                      2        30
                                          ωmax − ωmin ω2max − ω2min
     Lh]^Z δ =            =              .     (6)
                                             ωkj             2
                                                          2ωkj
    <_ebqbgZdhwnnbpb_glZδbaf_gy_lky\ij_^_eZo
    - ^eyZ\lhfh[bevguo^\b]Zl_e_cδ=0,01...0,02;
    - ^eyljZdlhjguo^\b]Zl_e_cδ=0,003...0,01.
    IjbjZkq_lZo^\b]Zl_ey\qZklghklbfZoh\bdZ\_ebqbgZ δaZ^Z_lky\
ij_^_eZomdZaZgguoagZq_gbcGZijZdlbd_δhij_^_eyxlwdki_jbf_glZev
gufiml_f
    <eZ[hjZlhjbb^bgZfbdb^\b]Zl_e_c^eywlhcp_ebbkihevam_lkyki_
pbZevgZybaf_jbl_evgZykbkl_fZ jbk 
    <__khklZ\\oh^yl
    - ijyfham[Zyr_kl_jgymklZgZ\eb\Z_fZygZo\hklh\bd_dhe_gqZlh
       ]h\ZeZ
    - bg^mdlb\guc^ZlqbdmklZgh\e_gguc\[ebabam[v_\r_kl_jgb
    - we_dljhggucnhjfbjh\Zl_evbfimevkh\
                                                                           19

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