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ģȯ°æ
¸ÞÄ«Æ®·Î´Ð½º
Á¦¸ñ  CylinderÀÇ Èû(Power)°è»ê°ú °ø±â ¼Ò¸ð·®
ºÐ·ù ¸ÞÄ«Æ®·Î´Ð½º > °ø¾ÐÁø°ø ÀÛ¼ºÀÏ 2012-02-24
´Ù¿î 0 Á¶È¸ 8504
ÀÛ¼ºÀÚ ttibba ÆòÁ¡ 0
´Ù¿î·Îµå Ãßõ 0 ¸í
Å°¿öµå
< CylinderÀÇ  Èû(Power)°è»ê°ú °ø±â ¼Ò¸ð·® >
           1) Piston½Ä Cylinder PowerÀÇ °è»ê

                     ÀÌ·ÐÀûÀÎ Èû (Fth : N) = À¯È¿ ÇǽºÅæ ¸éÀû (A : m
©÷) x ÀÛµ¿¾Ð·Â (P : kPa.10ÀÇ5½Â N/m©÷)
              ½ÇÁ¦ÀÇ Èû (¸¶ÂûÁ¶°Ç°ú ¾Ð·Â¹üÀ§, ÀÛ¾÷Á¶°ÇÀ» °í·ÁÇÑ)
                           - ´Üµ¿½Ã¸°´õ Fn = A
x P - ( Fr + Ff )
                           - º¹µ¿½Ã¸°´õ (ÀüÁø¿îµ¿)  Fn = A
x P - Fr
                           - º¹µ¿½Ã¸°´õ (ÈÄÁø¿îµ¿)  Fn = A'
x P - Fr
                                                   ¿©±â¼­ Fn : À¯È¿ÇǽºÅæ Èû (N)
                                                              A : À¯È¿ÇǽºÅæ ¸éÀû (m
©÷) = D2/4
                                                              A' : À¯È¿ÇǽºÅæ ¸µÀÇ ¸éÀû (m
©÷) = 3.14/4 (D©÷ - d©÷)
                                                              P : ÀÛµ¿¾Ð·Â (
kPa.10ÀÇ5½Â N/m©÷)
                                                              Fr : ¸¶Âû·Â (3 ~ 20%) (N)
                                                              Ff : ³»ÀåµÈ ½ºÇÁ¸µÀÇ Èû (N)
                                                              D :  ½Ã¸°´õ Á÷°æ (mm)
                                                              d : ÇǽºÅæ ·Îµå Á÷°æ (mm)
                      (¿¹Á¦) D = 50 mm, d = 12 mm, A = 19.625 cm
©÷, A'= 18/5 cm©÷, Fr = 10 % ÀÏ ¶§¿¡ ½Ã¸°´õÀÇ Èû "Fn"À» ±¸Ç϶ó?.
                      (Ç®ÀÌ)
                                  - ÇǽºÅæ ¸éÀû A = 3.14/4
x D©÷ = 3.14/4 x 5 cm x 5 cm = 19.625 cm©÷
                       
- ÇǽºÅæ ¸µ ¸éÀû A = 3.14/4 x (D©÷ - d©÷) = 3.14/4 x (25cm©÷ x 1.44cm©÷ )= 18.5 cm©÷
                       
- ÀüÁø¿îµ¿½ÃÀÇ ÀÌ·ÐÀûÀÎ Èû Fth = A x P = 19.625 x 10ÀÇ -4½Â m©÷ x 6 x 10ÀÇ 5½Â N/m©÷ = 1177.5 N
                                             (Áï : ¸¶Âû·Â 10%ÀÓÀ¸·Î Fr = 117.75 N ÀÌ µÈ´Ù.
                                  - ÀüÁø¿îµ¿½ÃÀÇ À¯È¿ ÇǽºÅæÀÇ Èû Fn = A
x P - Fr = 1177.5 - 117.75  ¡Ö 1060 N
                                  - ÈÄÁø¿îµ¿½ÃÀÇ ÀÌ·ÐÀûÀΠÈû Fth = A'
x P = 18.5 x 10ÀÇ -4½Â m©÷  x 6  x 10ÀÇ 5½Â N/m©÷  ¡Ö 1110 N
                                             (Áï : ¸¶Âû·Â 10%ÀÓÀ¸·Î 111N ÀÌ µÈ´Ù)
                                   - ÈÄÁø¿îµ¿½ÃÀÇ À¯È¿ ÇǽºÅæÀÇ Èû Fn = A'
x P - Fr = 999 N           
           2) Piston½Ä CylinderÀÇ °ø±â ¼Ò¸ð·® °è»ê

                           
- ´Üµ¿ ½Ã¸°´õ °ø±â ¼Ò¸ð·® °è»ê½Ä : V = s x n x d/4 x ¾ÐÃàºñ ( §¤ /min )
                           - º¹µ¿ ½Ã¸°´õ °ø±â ¼Ò¸ð·® °è»ê½Ä : V =
£û(S x D2/4) + (S x D2- d2/4) £ýx n x ¾ÐÃàºñ ( §¤ /min  )
                                                    ¿©±â¼­ V : °ø±â·® (
§¤ /min)
                                                               S : ÇàÁ¤°Å¸® (cm)
                                                               n : 1ºÐ´çÀÇ ÇàÁ¤¼ö
                        (¿¹Á¦) ½Ç¸°´õ ³»°æ : 50 mm
¥Õ, ÇàÁ¤°Å¸® 100 mm, º¹µ¿½Ç¸°´õ, ·ÎµåÁ÷°æ 12 mm¥Õ, ºÐ´çÇàÁ¤¼ö 10,
                                  ÀÛµ¿¾Ð·Â 600 kPaÀÌ´Ù. À̽ø°´õÀÇ °ø±â¼Ò¸ð·®Àº ¾ó¸¶Àΰ¡?
                        (Ç®ÀÌ)
                                  - ¾ÐÃàºñ :
(101.3 kPa + 600 kPa) / 101.3 kPa  = 6.9
                           
- °ø±â ¼Ò¸ð·® :
                                                V =
£û S x D2/4 + S x (D2 -d2/4) £ýx n x ¾ÐÃàºñ
                                                V =
£û 10 mm x (25 cm x 2 ) /4 £ý+ £û10 cm x (25 cm - 1.44 cm©÷ x 2) /4 x 3.14£ýx
                                                       10 minÀÇ -1½Â
x 6.9 (¾ÐÃàºñ) = 196.25 cm©ø + 184.94 cm©ø  x 69 = 26302.8 cm©ø/ min =                                                 V = 26.3 ( §¤ /min)          
            3) CylinderÀÇ ÇàÁ¤°Å¸®¿¡ ´ëÇÑ »ó½Ä
                          - °ø¾Ð½Ç¸°´õÀÇ ÇàÁ¤°Å¸®´Â 2000mm¸¦ ³Ñ¾î¼­´Â ¾ÈµÈ´Ù. ½Ç¸°´õ Á÷°æÀÌ Å©°í ÇàÁ¤°Å¸®°¡ Å©°Ô µÇ¸é
                             ³Ê¹« ¸¹Àº °ø±â¸¦ ¼ÒºñÇÏ°Ô µÇ¾î ºñ°æÁ¦ÀûÀÌ´Ù.
                             ÇàÁ¤°Å¸®°¡ Å©°ÔµÇ¸é ÇǽºÅæ ·Îµå¿Í ÆÄÀÏ·ÎÆ® º£¾Æ¸µ¿¡ Å« ÀÀ·ÂÀÌ ÀÛ¿ëÇÏ°Ô µÇÀ¸·Î Á±¼(bucking)ÀÇ
                             À§ÇèÀ» ÇÇÇϱâ À§ÇÏ¿© ÇǽºÅæ ·ÎµåÀÇ Á÷°æÀ» ´õ Å©°ÔÇØ¾ß ÇÏ´Â ¹®Á¦°¡ µû¸¥´Ù..
                             ¶ÇÇÑ Çà°Å¸®°¡ Ä¿Áö¸é º£¾Æ¸µ »çÀÌÀÇ °£°ÝÀÌ Ä¿Áö°Ô µÇ¹Ç·Î ÇǽºÅæ ·ÎµåÀÇ ¾È³»ÀåÄ¡(guidance)¸¦
                             ¼³Ä¡ÇØ¾ß ÇÏ´Â ¹®Á¦µµ º´ÇØÇØ¾ß ÇÑ´Ù.
                  4) CylinderÀÇ ¼Óµµ¿¡ ´ëÇÑ »ó½Ä
                          - °ø¾Ð½Ç¸°´õÀÇ ÇǽºÅæ ¼Óµµ´Â ¹Ý·Â°ú °ø±â¾Ð·Â, ÆÄÀÌÇÁÀÇ ±æÀÌ, ¸¶Áö¸· Á¦¾î ¿ä¼Ò¿Í ÀÛ¾÷¿ä¼Ò »çÀÌÀÇ
                             ´Ü¸éÀû ¹× ¸¶Áö¸· Á¦¾î¿ä¼Ò¸¦ Åë°úÇÏ´Â À¯·®¿¡ Á¿ìµÇ¸ç Äí¼Ç(cushion)µµ ¼Óµµ¿¡ ¿µÇâÀ» ¹ÌÄ¡°Ô µÈ´Ù.
                             Ç¥ÁØ ½Ç¸°´õÀÇ °æ¿ì Æò±Õ¼Óµµ´Â 0.1 ~ 0.5 m/sec Á¤µµÀ̸ç Ư¼öÇÑ ½Ç¸°´õ(Ãæ°Ý ½Ç¸°´õ)ÀÇ °æ¿ì¿¡´Â
                             10 m/secÁ¤µµÀÇ ¼Óµµ±îÁö ¾òÀ» ¼ö ÀÖ´Ù.
                             ¶ÇÇÑ ÇǽºÅæÀÇ ¼Óµµ´Â À¯·®Á¶Àý¹ëºê¿Í ±Þ¼Ó ¹è±â¹ëºê·Î Á¶ÀýÇÒ ¼ö ÀÖ´Ù.
              ¢À ½Ã¸°´õ( Clinder)ÀÇ °ø±â ¼Ò¿ä·® (n§¤ / min)

        ÁÖ)  1) ¾Æ·¡ÀÇ °ø±â À¯·®Àº ½Ã¸°´õ ½ºÆ®·Î±× 1cm, 1ºÐ°£, 1ȸ µ¿ÀÛ½ÃÀÇ °ø±â¼Ò¿ä·®ÀÓ     
¤·¤¤        2) ¿Õº¹¿îµ¿ ½Ã¸°´õÀÇ °æ¿ì´Â ¾Æ·¡ À¯·® x 2¹è ÀÓ
  

³» °æ
(¥Õmm)

¾Ð·Â °ÔÀÌÁö (Kg / cm2)

2.0

4.0

5.0

6.0

7.0

8.0

40

0.0370

0.0613

0.0735

0.0855

0.0980

0.1101

50

0.0578

0.0957

0.1148

0.1337

0.1530

0.1720

60

0.0832

0.1378

0.1652

0.1925

0.2200

0.2480

70

0.1132

0.1875

0.2250

0.2620

0.3000

0.3370

80

0.1480

0.2450

0.2940

0.3420

0.3920

0.4410

90

0.1872

0.3100

0.3720

0.4330

0.4960

0.5570

100

0.2310

0.3830

0.4590

0.5350

0.6120

0.6890

110

0.2800

0.4640

0.5560

0.6470

0.7400

0.8330

120

0.3330

0.5510

0.6610

0.7700

0.8820

0.9910

130

0.3910

0.6470

0.7760

0.9040

1.0330

1.1630

140

0.4530

0.7500

0.9000

1.0840

1.2000

1.3500

150

0.5200

0.8610

1.0330

1.2030

1.3780

1.5500

160

0.5920

0.9800

1.1740

1.3700

1.5660

1.7620

170

0.6680

1.1070

1.3270

1.5450

1.7700

1.9900

180

0.7490

1.2400

1.4870

1.7320

1.9800

2.2300

190

0.8350

1.3800

1.6570

1.9300

2.2100

2.4850

200

0.9250

1.5300

1.8350

2.1400

2.4500

2.7500

230

1.2220

2.0300

2.4300

2.8300

3.2400

3.6500

250

1.4400

2.3900

2.8700

3.3400

3.8200

4.3000

300

2.0800

3.4500

4.1300

4.8100

5.5000

6.2000

350

2.8300

4.6900

5.6300

6.5500

7.5000

8.4400

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