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Science & Engineering Basic Concept

Science & Engineering Basic Concept. Science & Engineering Basic Concept. Hukum III Newton: F aksi = - F reaksi Kekekalan Energi : Energi tidak dapat diciptakan dari ketiadaan Energi tidak dapat dimusnahkan Energi berubah bentuk. Elevator versi I.

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Science & Engineering Basic Concept

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  1. Science & Engineering Basic Concept

  2. Science & Engineering Basic Concept • Hukum III Newton: Faksi= - Freaksi • KekekalanEnergi: • Energitidakdapatdiciptakandariketiadaan • Energitidakdapatdimusnahkan • Energiberubahbentuk

  3. Elevator versi I Energi yang diperlukanuntukmengangkat lift h meter denganmassakosong M0 danberat orang Morgadalah: E = (M0 + Morg).g.h Apakahjikakitainginmempercepat lift, energiefektifnyaberubah? Jawab: TIDAK E = P.t E = (M0 + Morg).g.h Jikakitainginmempercepatgerak lift, Kita hanyaharusmemperbesar DAYA P daripenggeraknya. Bagaimanajikakitainginmengurangienergi yang dibutuhkan? Jawab: Engineering! h W = (M0 + Morg).g

  4. Elevator versi II: dng Counter Balance Energi yang diperlukanuntukmengangkat lift h meter denganmassakosong M0 danberat orang Morgadalah: E = (M0 + Morg- MB ).g.h Jika M0 + Morg= MB, Secarateoritiskitadapatmengangkat lift denganenergi = 0. h Counter Balance MB WB = MB.g W = (M0 + Morg).g

  5. Tugas (1 minggu) • Buat model matematikadarisistem-sistemberikut & berikankomentarttgpengaruh counter-balance dalamkerangkamengurangienergi yang diperlukanolehsistem: • Parking Gate • Crane • Automatic Garage Door • Bagaimanadenganalat-alatberatseperti • Backhoe • Bulldozer

  6. Referensi • http://www.youtube.com/watch?v=vYsdi_wgw84 • http://www.youtube.com/watch?v=WlH0iChYq1M • http://www.youtube.com/watch?v=LaVGCq0PM4U • http://www.youtube.com/watch?v=Cbp2Zh3RphU • http://www.youtube.com/watch?v=LAn3ruYKJBY • http://www.youtube.com/watch?v=17qjUcR7-fI • http://www.youtube.com/watch?v=okBecjspp4M • http://www.youtube.com/watch?v=YNI-U5IiLeI • http://www.youtube.com/watch?v=zcYxSXz82EQ

  7. Notes • Tgl 31 kosong • Set kegiatanpembangunanjembatankertastgl 7 nov

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