hydraulics and simple machines pres - weebly

15
Hydraulic systems

Upload: others

Post on 19-Apr-2022

2 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Hydraulics and simple machines Pres - Weebly

Hydraulic  systems  

Page 2: Hydraulics and simple machines Pres - Weebly

•  hydraulics:  Involving  or  moved  by  fluid  under  pressure.  

Page 3: Hydraulics and simple machines Pres - Weebly

•  pneuma:cs:  Involving  the  mechanical  proper:es  of  air  and  other  gases.    

•  Safety  Factor(N):  A  number  used  to  describe  how  much  more  force  your  device  should  withstand  past  the  max  expected  force  based  on  a  number  of  parameters  such  as  material  and  dimensions  (N=1  means  only  can  withstand  100%  of  expected  force,  so  it  will  fail  at  101%  of  expected  load).  

Page 4: Hydraulics and simple machines Pres - Weebly

•  prototype:  A  working  model  of  a  new  product  or  new  version  of  a  product.  

Page 5: Hydraulics and simple machines Pres - Weebly

•  Hydraulic  systems  use  a  liquid,  usually  oil,  to  transmit  force.  This  system  works  on  the  same  principles  as  other  mechanical  systems  and  trades  force  for  distance.  Hydraulic  systems  are  used  on  construc:on  sites  and  in  elevators.  They  help  users  perform  tasks  that  they  would  not  have  the  strength  to  do  without  the  help  of  hydraulic  machinery.  They  are  able  to  perform  tasks  that  involve  large  amounts  of  weight  with  seemingly  liLle  effort.  

Page 6: Hydraulics and simple machines Pres - Weebly
Page 7: Hydraulics and simple machines Pres - Weebly

Mechanical  Advantage  

Page 8: Hydraulics and simple machines Pres - Weebly

Gripper  

Forearm  

Rota:ng  Base  

Arm  Supports  

Page 9: Hydraulics and simple machines Pres - Weebly

Design  Time  

•  For  each  of  the  following  basic  parts  draw  a  sketch  and  write  what  each  part  might  poten:ally  be  used  for  and  how  it  will  help  the  final  project.  Just  like  a  human  body  machines  are  made  of  many  parts  that  work  together  to  get  things  done!  

Page 10: Hydraulics and simple machines Pres - Weebly

At  minimum  your  hydraulic  arm  should  have:  •  Arm  Supports  •  Grips  •  Forearm  •  Rota:ng  Base  

Page 11: Hydraulics and simple machines Pres - Weebly

•  The  loca:on  of  where  your  syringes  make  contact  or  are  connected  at  pivot  points  will  maLer  hugely  in  how  successful  your  design  is  in  comple:ng  the  required  tasks.  Crea:ng  a  cardboard  template/prototype  makes  sense  so  you  can  tweak  your  project  using  cheap  materials  before  moving  onto  the  final  design.  

Page 12: Hydraulics and simple machines Pres - Weebly

•  Each  part  of  the  hydraulic  arm  should  be  there  for  a  reason  and  each  part  should  have  it's  own  orthographic  drawing  and  a  paper  or  cardboard  template  before  moving  onto  the  final  crea:on.  

Page 13: Hydraulics and simple machines Pres - Weebly

•  It  is  important  not  to  damage  the  syringes  or  tubing  during  the  whole  process  as  you  will  only  be  receiving  a  set  amount  and  not  be  given  extras  of  those  parts  due  to  our  budget  

Page 14: Hydraulics and simple machines Pres - Weebly

Ac:vity  for  Today  

Individually  sketch  out  your  ideas  for  what  may  be  needed  for  your  teams  hydraulic  arm.    •  Include  rota:onal/pivot  points,  each  main  part  (arm,  gripper,  etc)    

•  Once  your  sketches  are  complete  start  making  paper  templates  to  figure  out  if  your  ideas  will  work  based  on  the  design  constraints.  

•  KEEP  ALL  PLANNING  AND  IDEA  PAPERWORK  IN  YOUR  BINDER  FOR  FUTURE  EVALUATION!  

Page 15: Hydraulics and simple machines Pres - Weebly