Динамика двигателей внутренннего сгорания. Панов В.В - 16 стр.

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16
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h
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7
b
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7
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ih^\_kZ
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O
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J77O
J7O
OO
'
&&'
'&'
&'&
+−π
−π
= . (10)
Hij_^_eb\ihnhjfme_
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O b
&&''
OOO −= ih]_hf_ljbq_kdbfjZa
f_jZfrZlmgZgZoh^yl^ebgul
r.i
bl
r.d
,
ZihnhjfmeZf b–bkdhfu_
fZkkum
r.i
bm
r.d
.
Ijbijb[eb`_gguo\uqbke_gbyoagZq_gbyijb\_^_gguofZkkrZlmgZ
fh]ml[ulvijbgylugZhkgh\ZgbbklZlbklbq_kdbo ^Zgguoihkms_kl\mx
sbfdhgkljmdpbyf:
rri
)3,0...2,0( mm = ,
rrd
)8,0...7,0( mm
= .
H[uqgh^ey[_gabgh\uo^\b]Zl_e_c
rri
25,0 mm
≈
,
Z^ey^ba_e_c
rri
3,0 mm
≈
.
Ihjy^hd\uiheg_gbyjZ[hlu
1. Hij_^_eblv\_krZlmgZZaZl_f\uqbkeblv_]hfZkkm
 MklZgh\b\ rZlmg \_jog_c b gb`g_c ]heh\dhc gZ ijbafu mjZ\-
gh\_kblvqZrb\_kh\^h]hjbahglZevgh]hiheh`_gbyrZlmgZjbk
Ih\_ebqbg_]jmaZ
*∆
hij_^_eblvkihfhsvxnhjfmeu^ebgml
r.d
,
ZaZl_fihnhjfmeZfb–fZkkum
r.i
bm
r.d
.
Hij_^_eblvp_gljly`_klbrZlmgZihf_lh^mdZqZgbyIh^\_rb\Zy
rZlmggZijbaf_kgZqZeZaZihjrg_\mxaZl_faZdjb\hrbigmx]heh\dm
hij_^_eblv i_jbh^u iheguo dhe_[Zgbc
&
7
b
'
7
 Ijb dhe_[Zgbyo rZlmg
^he`_g hldehgylvky hl \_jlbdZevgh]h iheh`_gby gZ m]he 
h
 I_jbh^
dhe_[Zgbc rZlmgZ\j_fy ^\hcgh]h jZafZoZ hij_^_eyxl k ihfhsvx k_
dmg^hf_jZdZdkj_^g__Zjbnf_lbq_kdh_badhe_[ZgbcHiulih\lh
jblvjZaZ
Ihnhjfme_hij_^_eblv
&
O
ZaZl_f
'
O
bgZclbp_gljfZkkrZlmgZ
<uqbkeblvihemqZ_fu_ijbwlhfijb\_^_ggu_fZkkum
r.i
bm
r.d
.
(11)
(12) 
e__hIhagZq_gbyf 7& b 7' ZlZd`_agZyjZkklhygb_f_`^mlhqdZfb
ih^\_kZ O&' gZoh^yliheh`_gb_p_glZfZkkrZlmgZihnhjfme_
                                          π O&' − 7' J
                         O& = O&'                          .             (10)
                                     π O&' − 7& + 7' J
     Hij_^_eb\ihnhjfme_   O& b O ' = O&' − O& ih]_hf_ljbq_kdbfjZa
f_jZfrZlmgZgZoh^yl^ebgulr.i blr.d,ZihnhjfmeZf  b  –bkdhfu_
fZkkumr.i bmr.d.
    Ijbijb[eb`_gguo\uqbke_gbyoagZq_gbyijb\_^_gguofZkkrZlmgZ
fh]ml[ulvijbgylugZhkgh\ZgbbklZlbklbq_kdbo^Zgguoihkms_kl\mx
sbfdhgkljmdpbyf:

                      mri = (0,2...0,3)mr ,
                                                                         (11)
                      mrd = (0,7...0,8)mr .
     H[uqgh^ey[_gabgh\uo^\b]Zl_e_c mri ≈ 0,25mr ,
                                                                         (12)
     Z^ey^ba_e_c mri ≈ 0,3mr .


                          Ihjy^hd\uiheg_gbyjZ[hlu

    1. Hij_^_eblv\_krZlmgZZaZl_f\uqbkeblv_]hfZkkm
     MklZgh\b\ rZlmg \_jog_c b gb`g_c ]heh\dhc gZ ijbafu mjZ\-
gh\_kblvqZrb\_kh\^h]hjbahglZevgh]hiheh`_gbyrZlmgZ jbk 
     Ih\_ebqbg_]jmaZ ∆* hij_^_eblvkihfhsvxnhjfmeu  ^ebgmlr.d,
ZaZl_fihnhjfmeZf  b  –fZkkumr.i bmr.d.
     Hij_^_eblvp_gljly`_klbrZlmgZihf_lh^mdZqZgbyIh^\_rb\Zy
rZlmggZijbaf_kgZqZeZaZihjrg_\mxaZl_faZdjb\hrbigmx]heh\dm
hij_^_eblv i_jbh^u iheguo dhe_[Zgbc 7&  b 7'  Ijb dhe_[Zgbyo rZlmg
^he`_g hldehgylvky hl \_jlbdZevgh]h iheh`_gby gZ m]he h I_jbh^
dhe_[Zgbc rZlmgZ \j_fy ^\hcgh]h jZafZoZ  hij_^_eyxl k ihfhsvx k_
dmg^hf_jZdZdkj_^g__Zjbnf_lbq_kdh_badhe_[ZgbcHiulih\lh
jblvjZaZ
    Ihnhjfme_  hij_^_eblv O& ZaZl_f O ' bgZclbp_gljfZkkrZlmgZ

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