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Московский государственный машиностроительный университет "МАМИ"

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Автомобили

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Расчет автомобиля с КЭУ

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16 – :

-( ):

t = 0.5 ;

t = 135 ;

V = 35 ;

t = t + t = 135 + 0.5 = 135.5 [ ]; - :

V = j · t · 3.6 + V , = 0.521 · 0.5 · 3.6 + 35 = 35.938 [ ]; - :

		a	V V		35 35.938	35.469
	V						[ ];

2				2

- ,

, [ ]:

					1 4 10 5		a2		a		1
		f	Ga	f0				V
N						V

					3.6					1000		35.469		1
	f		2825 9.81 0.014 1 4 10 5 35.4692												4.015
N
													1000
										3.6

- ,

, [ ]:

	c					3a		1	0.7			35.4693		1
					V
N w		x	F		V
		x								1.24	4.215				1.944	;
	2			3.6			3	1000	2	1.24	4.215	3.6	3	1000	1.944	;
	2			3.6				1000	2			3.6		1000

- , [ ]:

		j		Ga		j j			V a	1
	N			Ga					V a	1		;
	N											;
				g				3.6 1000
- :
j 1					Ie i 2 i 2 i02						g			I k				g ;
j 1						G	a	r 2			g			G	a	r 2		g ;
							a		k						a	k
j			1			0.28 4.112 0.93					9.81							1.634 4				9.81 1.033		;
j			1			2					9.81					2825 9.81 0.343					2	9.81 1.033		;
					2825 9.81 0.343											2825 9.81 0.343
		j		2825 9.81				0.521 1.033					35.469						1	14.974
	N			2825 9.81									35.469						1				[ ];
	N																						[ ];
					9.81									3.6			1000

- ,

, :

N f

N w

N j

4.015 1.944 14.974

22.474

[ ];

0.931

- :

35.469 4.11

1127.333

[ ];

0.377 rk

0.377 0.343

- ,

ne Nemin:

Nemin: = 10.827 ;

- , ,

( Ne min N ), ,

( . 6.6).

. 6.6.

122

ja = 0.521		j = 1.022			= 0.922				= 0.744
t ,	t ,	V ,		V ,	t, c			a ,			f ,			w ,			j ,			,			t ,
							V			N			N			N			N
																						E
135	135.5	35	35.938		0.5	35.469			4.015			1.944			14.815			22.53			15.144
135.5	136	35.938	36.875		0.5	36.406			4.132			2.102			15.207			23.253			15.63
136	136.5	36.875	37.813		0.5	37.344			4.249			2.269			15.599			23.986			16.123
136.5	137	37.813	38.75		0.5	38.281			4.368			2.444			15.99			24.729			16.622
137	137.5	38.75	39.688		0.5	39.219			4.487			2.628			16.382			25.482			17.129
137.5	138	39.688	40.625		0.5	40.156			4.607			2.821			16.773			26.246			17.642
138	138.5	40.625	41.563		0.5	41.094			4.728			3.023			17.165			27.022			18.163
138.5	139	41.563	42.5		0.5	42.031			4.85			3.235			17.557			27.808			18.692
139	139.5	42.5	43.438		0.5	42.969			4.973			3.456			17.948			28.606			19.229
139.5	140	43.438	44.375		0.5	43.906			5.097			3.687			18.34			29.416			19.773
140	140.5	44.375	45.313		0.5	44.844			5.222			3.929			18.731			30.238			20.325
140.5	141	45.313	46.25		0.5	45.781			5.348			4.18			19.123			31.072			20.886
141	141.5	46.25	47.188		0.5	46.719			5.475			4.442			19.515			31.919			21.455
141.5	142	47.188	48.125		0.5	47.656			5.603			4.715			19.906			32.778			22.033
142	142.5	48.125	49.063		0.5	48.594			5.732			4.999			20.298			33.651			22.619
142.5	143	49.063	50		0.5	49.531			5.862			5.294			20.689			34.536			23.215
,		:
E		304.679

:
Q		0

17 – ( 9- ).

= 0.931							= 0.703										1 = 0.951

t ,			V ,		N f		,		N w ,				N ,					ne ,				Ne min ,				N ,					ge min ,				Q ,			,
c																														/( )
12		50			5.928			5.445				12.211					1589.192				26.377				13.469				217.838						19.153		113.548
Pac :
Q		19.135
, :
		113.548

18 –
18
ja = -0.521				j = 1.022						= 0.96											= 0.703
t ,	t ,			V ,			V ,				t,					a ,					f ,					w ,				j ,				,					t ,
															V					N				N				N					N
															V					N				N				N					N
c
155	155.5			50		49.063				0.5				49.531					5.862				5.294				20.649					9.118				3.203
155.5	156			49.063		48.125				0.5				48.594					5.732				4.999				20.258					9.151				3.214
156	156.5			48.125		47.188				0.5				47.656					5.603				4.715				19.867					9.172				3.222
156.5	157			47.188		46.25				0.5				46.719					5.475				4.442				19.476					9.182				3.225
157	157.5			46.25		45.313				0.5				45.781					5.348				4.18				19.086					9.18				3.225
157.5	158			45.313		44.375				0.5				44.844					5.222				3.929				18.695					9.167				3.22
158	158.5			44.375		43.438				0.5				43.906					5.097				3.687				18.304					9.144				3.212
158.5	159			43.438		42.5				0.5				42.969					4.973				3.456				17.913					9.109				3.2

124

159	159.5			42.5		41.563				0.5		42.031			4.85		3.235		17.522			9.065		3.184
159.5	160			41.563		40.625				0.5		41.094			4.728		3.023		17.131			9.01		3.165
160	160.5			40.625		39.688				0.5		40.156			4.607		2.821		16.741			8.945		3.142
160.5	161			39.688		38.75				0.5		39.219			4.487		2.628		16.35			8.87		3.116
161	161.5			38.75		37.813				0.5		38.281			4.368		2.444		15.959			8.786		3.086
161.5	162			37.813		36.875				0.5		37.344			4.249		2.269		15.568			8.693		3.053
162	162.5			36.875		35.938				0.5		36.406			4.132		2.102		15.177			8.59		3.017
162.5	163			35.938		35				0.5		35.469			4.015		1.944		14.786			8.479		2.978
, :
				50.463
:
Q				0
19 – .
19
= 0.931							= 0.703						1 = 0.951
t ,			V ,		N f		,		N w ,		N ,			ne ,		Ne min ,		N ,			ge min ,		Q ,		,
c																				/( )
13			35		3.957			1.868			6.254		1112.434			10.305		3.852		243.144			9.048		35.178
Pac :
Q		9.048
, :
		35.178

125

20 – – ,

2 .

= 0.931							= 0.703								1 = 0.951
t ,			V ,		N f		,		N w ,		N ,					ne ,						Ne min ,				N ,					ge min ,				Q ,			,
c																														/( )
2			35		3.957			1.868			6.254				1112.434						10.305					3.852			243.144						1.392		5.412
Pac :
Q		1.392
, :
		5.412

21 –
1 10
ja = -0.75				j = 1.022						= 0.922										= 0.703
t ,	t ,			V ,			V ,			t,			V	a ,				N	f		,			N	w ,			N		j ,			N	,					t ,
c
85	85.5			32		30.65				0.5		31.325					3.509						1.339				18.848					12.91				4.535
85.5	86			30.65		29.3				0.5		29.975					3.347						1.173				18.036					12.463				4.378
86	86.5			29.3		27.95				0.5		28.625					3.186						1.022				17.224					12.001				4.216
86.5	87			27.95		26.6				0.5		27.275					3.027						0.884				16.411					11.526				4.049
87	87.5			26.6		25.25				0.5		25.925					2.869						0.759				15.599					11.038				3.877
																126

87.5	88	25.25	23.9	0.5	24.575	2.713		0.647	14.787	10.537	3.701
88	88.5	23.9	22.55	0.5	23.225	2.557		0.546	13.974	10.024	3.521
88.5	89	22.55	21.2	0.5	21.875	2.403		0.456	13.162	9.501	3.337
89	89.5	21.2	19.85	0.5	20.525	2.249		0.377	12.35	8.966	3.149
89.5	90	19.85	18.5	0.5	19.175	2.097		0.307	11.538	8.422	2.958
90	90.5	18.5	17.15	0.5	17.825	1.945		0.247	10.725	7.868	2.764
90.5	91	17.15	15.8	0.5	16.475	1.795		0.195	9.913	7.306	2.566
91	91.5	15.8	14.45	0.5	15.125	1.645		0.151	9.101	6.736	2.366
91.5	92	14.45	13.1	0.5	13.775	1.496		0.114	8.288	6.158	2.163
92	92.5	13.1	11.75	0.5	12.425	1.347		0.084	7.476	5.574	1.958
92.5	93	11.75	10.4	0.5	11.075	1.199		0.059	6.664	4.984	1.751
2 10
ja = -0.92		j = 1.022		= 0.922			= 0.703
93	93.5	10.4	8.744	0.5	9.572	1.035		0.038	7.065	5.524	1.941
93.5	94	8.744	7.088	0.5	7.916	0.855		0.022	5.843	4.579	1.608
94	94.5	7.088	5.432	0.5	6.26	0.676		0.011	4.62	3.627	1.274
94.5	95	5.432	3.776	0.5	4.604	0.497		0.004	3.398	2.671	0.938
95	95.5	3.776	2.12	0.5	2.948	0.318		0.001	2.176	1.712	0.601
95.5	96	2.12	0.464	0.5	1.292	0.139		0	0.954	0.751	0.264
,		:
		57.916
:
Q		0

127

22 – .

21 c 22

128

Q Q 0 [ ].

Q Q 11.608 19.153 9.048 1.392 41.201 [ ].

Q Q Q 0 41.201 41.201 , [ ].

( ,

Qs	Q		41.201	4.886 , [ /100 ].
	10 S		0.83 1.016
		10
	, :
E	E 41.488 42.725 153.336 42.725 209.135
304.679 794.088 [ ].
	,
:
E	E 20.74 5.185 5.185 16.984 48.094 [ ].
	, :
E	E	0 [ ].

E E 24.902 113.548 35.178 5.412 179.04 [ ].

, :

E E 13.282 57.916 50.463 73.084 194.745 [ ].

E E E 794.088 48.094 842.182 [ ].

E E E E 0 179.04 194.745 373.785 [ ].

(

E E E 842.182 373.785 468.397 [ ].

( E 0 ),

, E .

Q	E g		468.397 230 29.925		[ ].
3600			3600
ge, /( )
300
				gemin
250
200
150
100
500	1000		1500	2000	2500	3000	3500	4000
		ne		ne,

. 6.7. .

Q = Q + Q = 41.201+29.925 = 71.126 [ ].

Qs	Q	71.126	8.434 [ /100 ].
	S	10 0.83 1.016
10

11.7 /100

– 8.4 /100 . 3.3 /100 ,

28%.

130

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