Calculate dimensions of a chord for a given weight? Possible?
Calculate dimensions of a chord for a given weight? Possible?
(OP)
Hello / help
I have a large cast steel disk, ~44" diameter flat on one side, ~1.375" wide at rim and tapered to ~5" wide on the other side. I need to balance this, and do so by machining a segment off the periphery. Calculating the depth and / or length of chord to match the weight required is a bit tricky.
So, I have modeled a segment in SW 2014, and by varying the depth I can use the mass properties to determine how heavy that segment would be (and obtain the length and thickness of the piece). However this is a bit of trial and error to get it exact.
Is there some clever way to make the weight the driving control of my depth measurement.
I have attached (I hope) my *.SLDPRT to assist if possible a solution to this.
Thank you for your time
Ralph

I have a large cast steel disk, ~44" diameter flat on one side, ~1.375" wide at rim and tapered to ~5" wide on the other side. I need to balance this, and do so by machining a segment off the periphery. Calculating the depth and / or length of chord to match the weight required is a bit tricky.
So, I have modeled a segment in SW 2014, and by varying the depth I can use the mass properties to determine how heavy that segment would be (and obtain the length and thickness of the piece). However this is a bit of trial and error to get it exact.
Is there some clever way to make the weight the driving control of my depth measurement.

I have attached (I hope) my *.SLDPRT to assist if possible a solution to this.
Thank you for your time
Ralph






RE: Calculate dimensions of a chord for a given weight? Possible?
Scott Baugh, CSWP
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www.scottjbaugh.com
RE: Calculate dimensions of a chord for a given weight? Possible?
RE: Calculate dimensions of a chord for a given weight? Possible?
Try playing around with the "design study" tool. It's similar to a "goal seek" in excel. Start a design study, choose your variables (length and thickness), add constraints, if needed and define your goals (weight/mass)
I haven't included center of mass in anything I've done but you might be able to add that as a constraint on it's location.
Should do most of the legwork you are planning on doing in the spreadsheet.