View Single Post
  #3   Spotlight this post!  
Unread 14-04-2011, 23:52
JesseK's Avatar
JesseK JesseK is offline
Expert Flybot Crasher
FRC #1885 (ILITE)
Team Role: Mentor
 
Join Date: Mar 2007
Rookie Year: 2005
Location: Reston, VA
Posts: 3,637
JesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond repute
Re: paper: Calculating for Requirements: a Systems Engineer's Mechanical Calculator

Updated to reflect a proper analysis using Wolfram Alpha with Ether's equations to solve for Time as a function of distance to goal, gearing, mass, and radius. The new file size is reduced by 80%!

The goal for this new revision is to get the final #'s within 10% of what's seen on the field while also exposing designs that may burn a motor out over the duration of a competition. It will also serve as the foundation of an extension to Karthik's strategy presentation for DC-area teams.

Note -- the product log function winds up being so negligible in good designs that I don't bother with Newton's method to calculate it. It does expose bad designs, yet there are also other indicators of 'bad design' that will become apparent in the graphs.

John, here's your proverbial idiot button
__________________

Drive Coach, 1885 (2007-present)
CAD Library Updated 5/1/16 - 2016 Curie/Carver Industrial Design Winner
GitHub
Reply With Quote