# S.O.S. Mathematics CyberBoard

Your Resource for mathematics help on the web!
 It is currently Wed, 19 Jun 2013 19:04:46 UTC

 All times are UTC [ DST ]

 Page 1 of 1 [ 4 posts ]
 Print view Previous topic | Next topic
Author Message
 Post subject: what is the value 70.4 in the following vibration calcPosted: Mon, 12 Sep 2011 18:21:32 UTC
 S.O.S. Newbie

Joined: Mon, 12 Sep 2011 16:29:52 UTC
Posts: 2
I am trying to better understand the vibration calculations for sinusoidal quantities and have a question on d (displacement) = 70.4 x 10^6 x a/f^2. the multiplier 70.4, where is this from and is it a constant when trying to answer my colleague on this I was stuck trying to break this down a bit.

Top

 Post subject: Re: what is the value 70.4 in the following vibration calcPosted: Mon, 12 Sep 2011 21:10:22 UTC
 Member of the 'S.O.S. Math' Hall of Fame

Joined: Fri, 1 Jul 2011 01:17:26 UTC
Posts: 329
robjan wrote:
I am trying to better understand the vibration calculations for sinusoidal quantities and have a question on d (displacement) = 70.4 x 10^6 x a/f^2. the multiplier 70.4, where is this from and is it a constant when trying to answer my colleague on this I was stuck trying to break this down a bit.

There is no way to answer this without context.

Top

 Post subject: Re: what is the value 70.4 in the following vibration calcPosted: Mon, 12 Sep 2011 23:38:51 UTC
 S.O.S. Newbie

Joined: Mon, 12 Sep 2011 16:29:52 UTC
Posts: 2
I have a list of calculations to enable us to break down the vibration in mills peak to peak to velocity in inches per second pk. There is a list of calcs for vibs and an online calculator but I was using this formulae and was trying to understand where this variable 70.4 comes from in this equation.

Top

 Post subject: Re: what is the value 70.4 in the following vibration calcPosted: Tue, 13 Sep 2011 22:24:21 UTC
 Member of the 'S.O.S. Math' Hall of Fame

Joined: Fri, 1 Jul 2011 01:17:26 UTC
Posts: 329
robjan wrote:
I have a list of calculations to enable us to break down the vibration in mills peak to peak to velocity in inches per second pk. There is a list of calcs for vibs and an online calculator but I was using this formulae and was trying to understand where this variable 70.4 comes from in this equation.

What is "mills peak to peak"?
What is "inches per second pk"?

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 4 posts ]

 All times are UTC [ DST ]

#### Who is online

Users browsing this forum: No registered users

 You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot edit your posts in this forumYou cannot delete your posts in this forum

Search for:
 Jump to:  Select a forum ------------------ High School and College Mathematics    Algebra    Geometry and Trigonometry    Calculus    Matrix Algebra    Differential Equations    Probability and Statistics    Proposed Problems Applications    Physics, Chemistry, Engineering, etc.    Computer Science    Math for Business and Economics Advanced Mathematics    Foundations    Algebra and Number Theory    Analysis and Topology    Applied Mathematics    Other Topics in Advanced Mathematics Other Topics    Administrator Announcements    Comments and Suggestions for S.O.S. Math    Posting Math Formulas with LaTeX    Miscellaneous