Idle (bored) ramblings
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 452
Likes: 0
Idle (bored) ramblings
At 5200 RPM the piston & rod in a 5.4L engine accelerates to 400 mph, stops then reverses direction 10,400 times per minute (173 times per second). The crankshaft rod journal is whirling around at 600 mph in a 4" diameter circle. The valves are opening and closing 87 times per second. By the time you reach 100,000 miles the crank has turned over 210 million times and each piston has traveled 276 thousand miles in 4-inch increments.
When you think about the stresses and velocities involved, it is hard to imagine these engines lasting more than a few revolutions and yet they run reliably for hundreds of thousands of miles. It’s really quite an engineering feat.
When you think about the stresses and velocities involved, it is hard to imagine these engines lasting more than a few revolutions and yet they run reliably for hundreds of thousands of miles. It’s really quite an engineering feat.
Elder User
Joined: May 2004
Posts: 553
Likes: 0
From: Ont. Can.
Sigma: This type of mechanical engineering has been growing since it's inception in the Steam Age and has gradually developed to the point you highlight by relating the type of stress applied on the parts involved to accomplish it .
Some manufacturing machinery creates even greater stress levels on moving parts only without the combustion heat factor to add to this level .
Your calculating all the statistics would have created more stress here than I care to apply to my personal machinery any more . Bravo for your efforts though .It does demonstrate some personal traits that should serve you well in several areas .
Some manufacturing machinery creates even greater stress levels on moving parts only without the combustion heat factor to add to this level .
Your calculating all the statistics would have created more stress here than I care to apply to my personal machinery any more . Bravo for your efforts though .It does demonstrate some personal traits that should serve you well in several areas .
The Pacifier
Joined: Jan 2003
Posts: 8,245
Likes: 7
From: Cloverdale, BC
Originally Posted by sigma
each piston has traveled 276 thousand miles in 4-inch increments.
Thread
Thread Starter
Forum
Replies
Last Post
ernesteugene
1999 - 2003 7.3L Power Stroke Diesel
20
May 28, 2008 11:26 AM
dimora
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
15
May 21, 2004 06:09 PM
bob arrington
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
3
Feb 6, 2004 12:24 AM
