seminarski-Motorna Vozila

7/28/2019 seminarski-Motorna Vozila

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1. DIMENZIJE VOZILAPrevoz krea u vreama

850x450x220 mm

Dimenzija kabine :

Kratka, 2204x2000x2085 mm

lpp=960 mm

1.1. Dimenzije tovarnog prostora

- Zapremina tovarnog prostora

- Zapremina vree - Masa vree

5 reda po 22 vree + 3 uspravne vree


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Duina tovarnog prostora 4060mm+60mm=4120 mmirina tovarnog prostora 2150mm+90mm=2240 mmVisina tovarnog prostora 1100mm

1.2. Gabaritne dimenzije vozila

= 140 mm

1.3. Poloaj osovina vozila

1.4. Poloaj teita

usvajamo 0.65

usvajamo


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2. MASA VOZILA I RASPODELA PO OSOVINAMA

usvajamo

---------------------------------------------------

=>

=>

3. BROJ TOKOVA I RASPODELA PO OSOVINAMA

=> usvajamo 4 toka na zadnjoj osovini

USVAJAMO PNEUMATIK: 195/70 R15 (AGILIS 61) 100/98R TL


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4. PRORAUN OTPORA PRI KRETANjU I POTREBNA SNAGA ZANjIHOVO SAVLAIVANjE

4.1. Otpor kotrljanja

V(m/s) 2.8 3.8 5 10 15 20 25 27f 0.018050803 0.018093571 0.018162 0.018648 0.019458 0.02059 0.02205 0.0227239 1446.73 1450.15 1455.64 1494.59 1558.51 1650.40 1767.25 1821.26

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Rf(N)

Rf(N)


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4.2. Otpor vazduha

usvajamo K=0.6

V(m/s) 2.8 3.8 5 10 15 20 25 27 19.77 36.40 63.02 252.1 567.22 1008.4 1575.62 1837.8

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Rv(N)

Rv(N)


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4.3. Suma stalnih otpora

V(m/s) 2.8 3.8 5 10 15 20 25 27 1446.73 1450.15 1455.64 1494.59 1558.51 1650.40 1767.25 1821.26 19.77 36.40 63.02 252.1 567.22 1008.4 1575.62 1837.8R 1466.5 1486.55 1518.66 1746.69 2125.32 2638.8 3342.87 3659.86

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R


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4.4. Snaga za savladjivanje otpora kotrljanja

V(m/s) 2.8 3.8 5 10 15 20 25 27 1446.73 1450.15 1455.64 1494.59 1558.51 1650.40 1767.25 1821.26 4050.84 5510.57 7278.2 14945.9 23392.6 33008 44181.25 49174.02

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Pf (W)

Pf (W)


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4.4. Snaga za savladjivanje otpora vazduha

V(m/s) 2.8 3.8 5 10 15 20 25 27 19.77 36.40 63.02 252.1 567.22 1008.4 1575.62 1837.8 55.35 138.32 315.1 2521 8508.3 20168 39390.5 49620.6

4.4. Ukupna snaga za savladjivanje stalnih otpora

V(m/s) 2.7 4 5 10 15 20 25 28

Pf(W) 4050.84 5510.57 7278.2 14945.9 23392.6 33008 44181.25 49174.02

Pv(W) 55.35 138.32 315.1 2521 8508.3 20168 39390.5 49620.6

P(W) 4106.15 5648.89 7593.3 17466.9 31900.9 53176 83571.75 98794.62

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Pv(W)

Pv [W]


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5. PRORAUN KARAKTERISTIKA MOTORA P=P(n), M=M(n), Km,Kn

*

+

OTO: Usvajamo za OTO motor:

=>

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P

P(W)


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5.1. Odredjivanje merodavne maksimalne snage otpora

Umax=25%

u=5% => sin=0.0379

a=1.4m/s2 =2

=> usvajamo

=>


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1 2.8 3.8 5 10 13.5 15 20 25 272 518.51 703.68 925.9 1851.8

25002777.25 3703.6 4629.5 5000

3 0.103 0.140 0.185 0.3700.5

0.555 0.740 0.925 1

4 0.0106 0.0196 0.0342 0.136 0.25 0.308 0.547 0.855 15 0.103 0.140 0.185 0.370 0.5 0.555 0.740 0.925 16 0.0106 0.0196 0.0342 0.136 0.25 0.308 0.547 0.855 17 0.1136 0.1596 0.2192 0.506 0.75 0.863 1.287 1.77 28 0.00109 0.00274 0.0063 0.05 0.125 0.170 0.405 0.791 19 7-8 0.1125 0.15686 0.21287 0.456 0.625 0.693 0.882 0.979 1

10 12349.3 17218.8 23367.1 50055.9 68607.375 76071.8 96818.7 107446.6 109771.811 227.4513 233.6851 241.0150 258.1455

262.080261.584 249.654 215.4584 209.6641

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518.51 703.68 925.9 1851.8 2500 2777.25 3703.6 4629.5 5000

Pe=f(ne)

Pe=f(ne)


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5.2. Koeficijenti elastinosti Km i Kn

6. PRORAUN PRENOSNOG ODNOSA U GLAVNOM PRENOSNIKUio

[ ]

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518.51 703.68 925.9 1851.8 2500 2777.25 3703.6 4629.5 5000

Pe(W)

Me=f(ne)

Me=f(ne)


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7. PRORAUN PRENOSNIH ODNOSA MENjAA im

=> sin = 0.242537

cos = 0.970148

usvaja se

=0.6

0.6

30327.41 p=4-6 usvaja se p=4


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-------------------------------------------------------------------------------------------------

( ) 0.015 =(0.09-0.03) usvaja se =0.05


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8. PRORAUN VUNO-DINAMIKIH KARAKTERISTIKA VOZILA

I stepen prenosa

2.8 3.8 5 10 13.5 15 20 25 271. 518.51 703.68 925.9 1851.8 2500 2777.25 3703.6 4629.5 50002. 12349.3 17218.8 23367.1 50055.9 68607.375 76071.8 96818.7 107446.6 109771.83. 227.4513 233.6851 241.0150 258.1455 262.080 261.584 249.654 215.4584 209.66414. 0.6159 0.8359 1.10 2.20 3.11 3.30 4.40 5.50 5.9395. 11114.37 15496.92 21030.39 45050.31 61746.63 68464.62 87136.83 96701.94 98794.626. 6875.170 7063.60 7285.160 7802.964 7915.12 7906.90 7545.291 6512.661 6337.517. 18092.55 18588.421 19171.4 20534.11

20829.27

20807.63 19856.02 17138.58 16677.658. 0.018002 0.018004 0.0180078 0.018031 0.01806 0.01807 0.01812 0.018196 0.018229. 147.079 147.092 147.123 147.31 147.55 147.631 147.04 148.66 148.85

10. 1.552 1.76 3.05 12.20 24.38 27.453 48.80 76.26 88.6511. 148.631 148.85 150.17 159.5 171.93 175.08 195.84 224.92 237.512. 17943.91 18439.57 19021.23 20374.61 20657.34 20632.55 19660.18 16913.66 16440.1513. 91.541 124.198 165.187 350.9 534.70 577.76 861.69 1237.06 1410.5114. 11022.829 15372.722 20865.203 44699.41 61211.93 67886.86 67025.17 95464.88 97384.1115. 0.225 0.231 0.239 0.256 0.259 0.2592 0.247 0.212 0.20616. 20.69 21.29 22.09 23.79 24.09 24.11 22.88 19.38 18.7717. 0.978 1.006 1.044 1.125 1.138 1.139 1.082 0.916 0.887


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II stepen prenosa

2.8 3.8 5 10 13.5 15 20 25 271. 518.51 703.68 925.9 1851.8 2500 2777.25 3703.6 4629.5 50002. 12349.3 17218.8 23367.1 50055.9 68607.375 76071.8 96818.7 107446.6 109771.83. 227.4513 233.6851 241.0150 258.1455 262.080 261.584 249.654 215.4584 209.66414. 1.02 1.38 1.82 3.64 5.16 5.46 7.29 9.11 9.845. 11176.11 15583.01 21147.22 45300.58 62089.67 68844.98 87620.92 97239.17 99343.486. 4171.456 4285.784 4420.215 4734.388 4806.61 4797.450 4578.654 3951.507 3845.2397. 10977.51 11278.37 11632.14 12458.91 12648.98 13103.81 12049.08 10398.70 10119.058.

0.018006 0.018012 0.0180 0.018085 0.0181 0.01819 0.01834 0.01853 0.01862

9. 147.109 147.158 147.06 147.75 147.877 148.61 149.83 151.39 152.1210. 2.341 4.80 8.350 33.40 67.123 75.155 133.97 209.22 244.0911. 149.45 151.958 155.41 181.15 215 223.765 283.8 360.61 396.2112. 10828.06 11126.41 11476.73 12277.76 12433.98 12880.045 11765.28 10038.09 9722.8413.

152.439 209.7020 282.8462 659.386 1109.4 1221.7569 2068.902 3285.157 3898.70614. 11023.671 15373.30 20864.373 44641.194 60980.27 67623.223 85552.018 93954.01 95444.77315.

0.136 0.140 0.145 0.155

0.1570.163 0.148 0.127 0.123

16. 11.79 12.19 12.7 13.69 13.89 14.48 12.96 10.84 10.4317. 0.816 0.860 0.896 0.960 0.962 1.002 1.108 0.927 0.892


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III stepen prenosa

2.8 3.8 5 10 13.5 15 20 25 271. 518.51 703.68 925.9 1851.8 2500 2777.25 3703.6 4629.5 50002. 12349.3 17218.8 23367.1 50055.9 68607.375 76071.8 96818.7 107446.6 109771.83. 227.4513 233.6851 241.0150 258.1455 262.080 261.584 249.654 215.4584 209.66414. 1.691 2.296 3.021 6.042 8.551 9.062 12.084 15.06 16.3155. 11237.86 15669.10 21264.06 45550.86 62423.71 69225.33 88105.01 97776.40 99892.336. 2531.09 2600.46 2682.01 2872.64 2916.42 2910.90 2778.14 2397.62 2333.147. 6660.79 6843.31 7057.92 7559.57 7674.78 7660.26 7310.89 6309.52 6139.848.

0.01801 0.0180 0.01805 0.01823 0.01847 0.01839 0.01894 0.0194 0.0197

9. 147.141 147.06 147.468 148.93 150.89 150.24 154.73 158.49 160.9410. 7.20 13.28 23.00 92.03 184.33 207.02 368.12 571.77 671.0311. 154.341 160.34 170.468 241.96 335.22 357.26 522.85 730.26 831.9712. 6506.449 6682.97 6887.452 7317.61 7339.56 7303 6788.04 5579.26 5307.8713.

260.99063 368.1406 514.98382 1461.922 2866.466 3237.490 6318.119 10997.71 13573.59014.

10976.869 15300.95 20749.076 44088.93 59557.24 65987.84 81786.89 86778.69 86318.74

15. 0.0830 0.085218 0.0877744 0.093172 0.093458 0.092993 0.086624 0.071589 0.068234116. 6.5 6.71 6.97 7.49 7.49 7.46 6.76 5.21 4.8517. 0.541 0.559 0.581 0.657 0.658 0655 0.594 0.458 0.406


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IV stepen prenosa

2.8 3.8 5 10 13.5 15 20 25 27

1. 518.51 703.68 925.9 1851.8 2500 2777.25 3703.6 4629.5 50002. 12349.3 17218.8 23367.1 50055.9 68607.375 76071.8 96818.7 107446.6 109771.83. 227.451 233.6851 241.0150 258.1455 262.080 261.584 249.654 215.4584 209.66414. 2.8 3.8 5.005 10 14.16 15.01 20.02 25.02 27.035. 11299.6 15755.20 21380.896 45801.1485 62775.748 69605.6 88589.1 98313.6 100441.196. 1535.9 1577.84 1627.33 1742.99 1769.56 1766.21 1685.66 1454.77 1415.797. 4041.84 4152.21 4282.44 4586.81 4656.73 4647.92 4435.94 3828.34 3725.768. 0.01805 0.018093 0.0181 0.0186 0.0192 0.0194 0.0205 0.0220 0.02279. 147.468 147.81 147.87 151.96 156.86 158.49 167.48 179.74 185.45

10.

19.764 36.40 63.151 252.1 505.47 567.981 1010.41 1578.14 1841.89

11. 167.232 184.21 211.021 404.06 662.33 726.47 1177.89 1757.88 2027.3412. 3874.60 3968 4071.41 4182.75 3994.4 3921.2 3258.05 2070.46 1698.713.

468.249 699.998 1056.15 4040.6 9378.59 10904.3 23581.3 43982.1 54799.0014. 10831.3 15055.20 20324.746 41760.5485 53397.158 58701.3 65007.8 54331.5 45642.1915. 0.0501 0.5135 0.05264 0.05408 0.05179 0.04892 0.0427 0.0280 0.023516. 3.20 3.30 3.45 3.54 3.25 2.84 2.22 0.6 0.817. 0.2884 0.299 0.310 0.319 0.292 0.255 0.199 0.586 0.072


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seminarski-Motorna Vozila

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