Go to Post Now there is something I am going to suggest to my team...."testing before ship (bag)"....on second thought, maybe I'll just ref! - ExTexan [more]
Home
Go Back   Chief Delphi > Technical > Technical Discussion
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
View Poll Results: What's most important in this year's game?
Strength/Power 11 16.67%
Speed/Maneuverability 25 37.88%
A happy medium of both 30 45.45%
Voters: 66. You may not vote on this poll

 
 
Thread Tools Rate Thread Display Modes
Prev Previous Post   Next Post Next
  #11   Spotlight this post!  
Unread 10-01-2005, 02:38
Greg Needel's Avatar Unsung FIRST Hero
Greg Needel Greg Needel is offline
REVving up for a new season
FRC #2848 (All-sparks)
Team Role: Engineer
 
Join Date: Jan 2002
Rookie Year: 2002
Location: Dallas, TX
Posts: 3,108
Greg Needel has a reputation beyond reputeGreg Needel has a reputation beyond reputeGreg Needel has a reputation beyond reputeGreg Needel has a reputation beyond reputeGreg Needel has a reputation beyond reputeGreg Needel has a reputation beyond reputeGreg Needel has a reputation beyond reputeGreg Needel has a reputation beyond reputeGreg Needel has a reputation beyond reputeGreg Needel has a reputation beyond reputeGreg Needel has a reputation beyond repute
Re: 2005 Drivetrains

Quote:
Originally Posted by Xufer
Im sitting arround here crunching some numbers and it looks like we will be all speed in high and all torque in low if we do a 3 speed we will have a happy medium.

i figured about 340 ft-lbs and 2 fps in low and about 95 ft-lbs and 9 fps in high.


this is not possible because you wont have the traction to transfer that force to the floor.... kinetic force = (coefficient of friction)*(the normal force)

since the coefficient of friction can;t be more then 1 and your normal force is essentially the weight of your robot (force that acts perpendicular to the surface)

therefore your max force can not reach 340 ft-lbs


i would recommend recalculating your theoretical force to a more reasonable value around the max weight of your robot but even that will be overkill and you will just end up spinning your tires
__________________
Greg Needel│www.robogreg.com
Co-founder REV Robotics LLC www.REVrobotics.com
2014 FRC World Champions with 254, 469, & 74

Last edited by Greg Needel : 10-01-2005 at 02:42.
 


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
**FIRST EMAIL**/Important 2005 Competition Manual Information Sscamatt FIRST E-Mail Blast Archive 1 06-01-2005 18:50
**FIRST EMAIL**/Advance Material List for the 2005 Competition Now Available! Travis Hoffman FIRST E-Mail Blast Archive 0 05-01-2005 16:46
[Official 2005 Game Design] OK, so YOU design the 2005 game... dlavery FRC Game Design 37 26-10-2004 23:15
Your Thoughts on the 2005 Championship Eligibility Criteria! dez250 Championship Event 57 10-09-2004 14:59


All times are GMT -5. The time now is 08:20.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi