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ȸÀüüÀÇ Ã¼Àû(ºÎÇÇ), »ï°¢ÇüÀÇ ÇÑ º¯°ú ÆòÇàÇÑ ³»ºÎÀÇ ÃàÀ¸·Î ȸÀü

ÀÛ¼ºÀÚ Uploader : ¸¶¼úÇǸ® ÀÛ¼ºÀÏ Upload Date: 2021-01-22º¯°æÀÏ Update Date: 2021-01-22Á¶È¸¼ö View : 409

±×¸²°ú °°ÀÌ ¹Øº¯ÀÇ ±æÀÌ°¡ b ÀÌ°í ³ôÀÌ°¡ h ÀÎ »ï°¢ÇüÀ» ¹Øº¯¿¡¼­ dh (¡Âh/2) ¸¸Å­ ¶³¾îÁø ÆòÇàÇÑ ÃàÀ¸·Î ȸÀü ½ÃÄ×À» ¶§, ȸÀüüÀÇ ºÎÇǸ¦ ±¸ÇÑ´Ù.

ȸÀüÃàÀ¸·Î ³ª´¶ »ï°¢ÇüÀ» ȸÀü½ÃŲ ºÎºÐÀº µÎ °³ÀÇ ¿ø»ÔÀÌ µÇ¹Ç·Î, »óºÎ ¿ø»ÔÀÇ ºÎÇǸ¦ V1, ÇϺΠ¿ø»ÔÀÇ ºÎÇǸ¦ V2 ¶ó Çϸé,

V1 = (¥ð/3)*c*(h-dh)^2
V2 = (¥ð/3)*d*(h-dh)^2

°¡ µÈ´Ù.

h : b1 = (h-dh) : c ¡æ c = b1*(h-dh)/h
h : b2 = (h-dh) : d ¡æ d = b2*(h-dh)/h

µû¶ó¼­,

V1 = (¥ð/3)*(b1/h)*(h-dh)^3
V2 = (¥ð/3)*(b2/h)*(h-dh)^3

¶ÇÇÑ, »óÇϺÎÀÇ »ï°¢ÇüÀ» ȸÀü½ÃŲ ºÎÇǸ¦ °¢°¢ V3, V4 ¶ó Çϸé,

V3 = ¥ð*dh^2*db1 - 2*(¥ð/3)*(db1/2)*dh^2
   = (2*¥ð/3)*db1*dh^2

V4 = ¥ð*dh^2*db2 - 2*(¥ð/3)*(db2/2)*dh^2
   = (2*¥ð/3)*db2*dh^2

°¡ µÈ´Ù.

h : b1 = 2dh : db1 ¡æ db1 = b1*2dh/h
h : b2 = 2dh : db2 ¡æ db2 = b2*2dh/h

µû¶ó¼­,

V3 = (2*¥ð/3)*(b1*2dh/h)*dh^2 = (4*¥ð/3)*(b1/h)*dh^3
V4 = (2*¥ð/3)*(b2*2dh/h)*dh^2 = (4*¥ð/3)*(b2/h)*dh^3

°¡ µÈ´Ù.

±¸ÇÏ°íÀÚ ÇÏ´Â ºÎÇÇ V ´Â

V = V1+V2+V3+V4
  = (¥ð/3)*(b1/h)*(h-dh)^3 + (¥ð/3)*(b2/h)*(h-dh)^3
     + (4*¥ð/3)*(b1/h)*dh^3 + (4*¥ð/3)*(b2/h)*dh^3
  = (¥ð/3)*(1/h)*(h-dh)^3*(b1+b2) + (4*¥ð/3)*(1/h)*dh^3*(b1+b2)

b1+b2 = b À̹ǷÎ,

V = (¥ð/3)*(b/h)*(h-dh)^3 + (4*¥ð/3)*(b/h)*dh^3
  = (¥ð/3)*(b/h)*((h-dh)^3 + 4*dh^3)

ÀÌ´Ù.

*** Âü°í¹®Çå[References] ***

V = (¥ð/3)*(b/h)*((h-dh)^3 + 4*dh^3)
ÀÛ¼ºÀÚÀÇ ¼ö½Ä±×¸²ÀÌ ¾ø½À´Ï´Ù. No picture for this formula
º¯¼ö¸í Variable º¯¼ö°ª Value º¯ ¼ö ¼³ ¸í Description of the variable


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