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-   -   paper: Simple Motor Calculator (http://www.chiefdelphi.com/forums/showthread.php?t=89080)

Ether 13-01-2011 22:55
paper: Simple Motor Calculator
 
Thread created automatically to discuss a document in CD-Media.

Simple Motor Calculator by Ether

Ether 13-01-2011 22:56
Re: paper: Simple Motor Calculator
 
Simple Motor Calculator

I created this small app for my own use, then realized that others might find it interesting/fun/handy.

Constructive criticism and error reports welcome.

Note: for those looking for something more comprehensive, check out JVN's calculator.

http://www.chiefdelphi.com/media/papers/2059

Ether 16-01-2011 16:35
Re: paper: Simple Motor Calculator
 
The updated version will allow you to enter a desired motor power, and it will then calculate the rpm range, the torque range, and the current range over which the motor will deliver at least that much power.

Also, if there is some reason why you want to always operate the motor at or above a certain efficiency, you can enter the desired efficiency and it will calculate the rpm range, the torque range, the current range over which the motor will operate at an efficiency equal to or greater than the entered number.

MrHance 17-01-2011 20:29
Re: paper: Simple Motor Calculator
 
Quote:
Originally Posted by Ether (Post 1001259)
The updated version will allow you to enter a desired motor power, and it will then calculate the rpm range, the torque range, and the current range over which the motor will deliver at least that much power.

Also, if there is some reason why you want to always operate the motor at or above a certain efficiency, you can enter the desired efficiency and it will calculate the rpm range, the torque range, the current range over which the motor will operate at an efficiency equal to or greater than the entered number.
Ether, nice little program and simple to use. great work. As an Engineer, I am always impressed at what people come up with to solve simple problems when the use the theory of "STICK ON A STRING". If you keep this in mind when face with a problem, life will be great and a little less stressful.

Again, Do not stop what it is that you do best, GREAT WORK.:cool:

Ether 07-01-2012 20:09
Re: paper: Simple Motor Calculator
 

I have updated the motor calculator for the 9015 (am-0912) and PG71 (am-0914) 2012 motors.

The app is now 32-bit so it should now run in 64-bit Windows (XP & 7).

I am re-working the floating-point error trapping and will update again when that is done.

Enjoy.

Ether 08-01-2012 00:53
Re: paper: Simple Motor Calculator
 

Floating-point exception handling added.

MCALC32c.

Works in 32-bit or 64-bit Windows.

Scrollable window.

Includes 9015 (am-0912), PG71 (am-0914), and fc12-20 motors.

Ether 08-01-2012 19:38
Re: paper: Simple Motor Calculator
 

For anyone who has downloaded MCALC32, please be advised that the specs for the PG71 gearmotor are in dispute1.

As soon as this is settled, I will update the calculator.

Sorry for any inconvenience.


1 http://www.chiefdelphi.com/forums/sh...ad.php?t=99488

Ether 09-01-2012 16:07
Re: paper: Simple Motor Calculator
 

Motor Calculator build MCALC32g 1/9/2012 350p

Now supports the following motors:

CIM

FP0673
FP2719
FP9012
FP9015

RS395
RS540 (not legal for 2012 but included)
RS550
RS775-12
RS775-18

am-0912
am-0914

DensoL
DensoR
Denso AE235100-0160

Ether 10-01-2012 13:16
Re: paper: Simple Motor Calculator
 

Here's a copy-and-paste ticker tape output from the motor calculator. If you disagree with any of the specs please let me know. Thanks:

Code:
Motor Calculator  build MCALC32h 1/9/2012 643p



CIM FR801 001, AM802 001A @ 12.00 volts:
@ free (no load):
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    0.0  0.000    5310  100.0    2.7        0.0        32.4    0.0
@ stall:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
  343.4  2.425      0    0.0  133.0        0.0      1596.0    0.0
@ max power:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
  171.7  1.212    2655    50.0    67.8      337.1      814.2    41.4
@ max efficiency:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    42.8  0.302    4648    87.5    18.9      147.1      227.3    64.7




FP 00801-0673 @ 12.00 volts:
@ free (no load):
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    0.0  0.000  20770  100.0    0.8        0.0        9.8    0.0
@ stall:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    75.4  0.532      0    0.0  108.7        0.0      1304.4    0.0
@ max power:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    37.7  0.266  10385    50.0    54.8      289.5      657.1    44.1
@ max efficiency:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    6.0  0.043  19110    92.0    9.4        85.2      113.3    75.2




FP 000968-2719 @ 12.00 volts:
@ free (no load):
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    0.0  0.000  16100  100.0    2.0        0.0        24.0    0.0
@ stall:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    57.5  0.406      0    0.0    63.0        0.0      756.0    0.0
@ max power:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    28.8  0.203    8050    50.0    32.5      171.1      390.0    43.9
@ max efficiency:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    8.7  0.061  13665    84.9    11.2        87.9      134.7    65.2




FP 000968-9012 @ 12.00 volts:
@ free (no load):
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    0.0  0.000  15600  100.0    1.0        0.0        12.0    0.0
@ stall:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    59.5  0.420      0    0.0    63.5        0.0      762.0    0.0
@ max power:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    29.8  0.210    7800    50.0    32.3      171.6      387.0    44.3
@ max efficiency:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    6.6  0.047  13861    88.9    8.0        68.0        95.6    71.1


FP 000968-9015 @ 12.00 volts:
@ free (no load):
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    0.0  0.000  15600  100.0    1.3        0.0        15.0    0.0
@ stall:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    63.7  0.450      0    0.0    70.0        0.0      840.0    0.0
@ max power:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    31.9  0.225    7800    50.0    35.6      183.7      427.5    43.0
@ max efficiency:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    7.5  0.053  13761    88.2    9.4        76.4      112.3    68.1


M3-RS395-12 @ 12.00 volts:
@ free (no load):
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    0.0  0.000  15500  100.0    0.5        0.0        6.0    0.0
@ stall:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    16.7  0.118      0    0.0    15.0        0.0      180.0    0.0
@ max power:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    8.3  0.059    7750    50.0    7.8        47.8        93.0    51.3
@ max efficiency:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    2.6  0.018  13107    84.6    2.7        24.9        32.9    75.9


***NOTE*** RS540 is not legal for 2012

RS540 @ 12.00 volts:
@ free (no load):
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    0.0  0.000  17200  100.0    0.9        0.0        11.2    0.0
@ stall:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    32.6  0.230      0    0.0    36.8        0.0      441.6    0.0
@ max power:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    16.3  0.115    8600    50.0    18.9      103.8      226.4    45.8
@ max efficiency:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    4.5  0.032  14841    86.3    5.8        49.1        70.2    70.0


RS550 stall torque changed to 70.5 oz-in per 2012 FRC specs

M5-RS550-12 (-B) @ 12.00 volts:
@ free (no load):
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    0.0  0.000  19300  100.0    1.4        0.0        16.8    0.0
@ stall:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    70.5  0.498      0    0.0    85.0        0.0      1020.0    0.0
@ max power:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    35.3  0.249    9650    50.0    43.2      251.5      518.4    48.5
@ max efficiency:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    8.0  0.057  17105    88.6    10.9      101.4      130.9    77.5



M7-RS775-12 @ 12.00 volts:
@ free (no load):
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    0.0  0.000    7300  100.0    1.1        0.0        13.2    0.0
@ stall:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    61.1  0.431      0    0.0    30.0        0.0      360.0    0.0
@ max power:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    30.6  0.216    3650    50.0    15.6        82.5      186.6    44.2
@ max efficiency:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    9.8  0.069    6127    83.9    5.7        44.5        68.9    64.5



M7-RS775-18 @ 12.00 volts:
@ free (no load):
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    0.0  0.000  13000  100.0    1.8        0.0        21.6    0.0
@ stall:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
  112.8  0.797      0    0.0    86.7        0.0      1040.4    0.0
@ max power:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    56.4  0.398    6500    50.0    44.3      271.2      531.0    51.1
@ max efficiency:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    14.2  0.100  11363    87.4    12.5      119.4      149.9    79.7



am-0912 (CCL 9015) @ 12.00 volts:
@ free (no load):
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    0.0  0.000  16000  100.0    1.2        0.0        14.4    0.0
@ stall:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    60.6  0.428      0    0.0    63.8        0.0      765.6    0.0
@ max power:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    30.3  0.214    8000    50.0    32.5      179.4      390.0    46.0
@ max efficiency:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    7.3  0.052  14070    87.9    8.8        76.1      105.0    72.5



Specs for am-0914 (PG71) motor are disputed.
Update will be posted when available.

am-0914 (PG71) @ 12.00 volts:
@ free (no load):
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    0.0  0.000      84  100.0    1.3        0.0        15.6    0.0
@ stall:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
  4140.0  29.235      0    0.0    26.8        0.0      321.8    0.0
@ max power:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
  2070.0  14.617      42    50.0    14.1        64.3      168.7    38.1
@ max efficiency:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
  739.3  5.221      69    82.1    5.9        37.7        70.3    53.7



DensoL 262100-3040 @ 12.00 volts:
@ free (no load):
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    0.0  0.000      84  100.0    1.8        0.0        21.6    0.0
@ stall:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
  1501.1  10.600      0    0.0    21.0        0.0      252.0    0.0
@ max power:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
  750.5  5.300      42    50.0    11.4        23.3      136.8    17.0
@ max efficiency:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
  339.5  2.398      65    77.4    6.1        16.3        73.7    22.1



DensoR 262100-3030 @ 12.00 volts:
@ free (no load):
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    0.0  0.000      84  100.0    1.8        0.0        21.6    0.0
@ stall:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
  1501.1  10.600      0    0.0    18.6        0.0      223.2    0.0
@ max power:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
  750.5  5.300      42    50.0    10.2        23.3      122.4    19.0
@ max efficiency:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
  357.4  2.524      64    76.2    5.8        16.9        69.6    24.3



Denso AE235100-0160 @ 12.00 volts:
@ free (no load):
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    0.0  0.000    5300  100.0    1.0        0.0        12.0    0.0
@ stall:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    18.4  0.130      0    0.0    7.0        0.0        84.0    0.0
@ max power:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    9.2  0.065    2650    50.0    4.0        18.0        48.0    37.6
@ max efficiency:
  oz-in      Nm    rpm    rpm%    amps  watts out    watts in    eff%
    5.0  0.036    3846    72.6    2.6        14.4        31.8    45.2

Ether 12-01-2012 23:00
Re: paper: Simple Motor Calculator
 

I've just been informed (by someone in a position to know) that the "9013" in the KoP Checklist is an error: It should be 9012.

Team Update #2 (2012-01-13) added FP-9012 to [R48] and kept FP-9013.

The motor calculator supports the FP-9012. As soon as specs for FP-9013 become available I will add them to the calculator.

Ether 16-01-2012 22:37
Re: paper: Simple Motor Calculator
 

The motor calculator has been updated with the latest (1/16/2012) lab data for the am-0914 gearmotor.

I decided to incorporate 2 separate sets of motor specs for this gearmotor:
one for brand-new (unused) gearmotor, and

one for used (broken-in) gearmotor
... since the lab data indicated a significant difference.


** ACTUAL GEARMOTOR PERFORMANCE PROBABLY LIES SOMEWHERE BETWEEN **

Links to the 3 lab report PDF documents can be found at the bottom of this web page.

If you have even a passing interest in motor testing, you will find this interesting reading.

DOES ANYONE HAVE SPECS FOR THE FISHER-PRICE FP-000968-9013 ???

Ether 18-01-2012 13:42
Re: paper: Simple Motor Calculator
 

Motor calculator has been updated to MCALC32t and includes:

The calculator now gives the user the option to select which specs to use for am-0914, since there are 3 different sets of specs (explained in the am-0914 options menu).

Ether 19-01-2012 11:13
Re: paper: Simple Motor Calculator
 

MCALC32w fixes a problem with the spec options menu for the am-0914.

Ether 19-01-2012 17:56
Re: paper: Simple Motor Calculator
 


MCALC32aa adds a UserDefined motor to the motor selection menu.

EDIT: MCALC32ab adds exception handling to user-defined motor input

bmlarson12 27-01-2012 15:18
Re: paper: Simple Motor Calculator
 
WOW!!! How did you do this? I have been looking for a graph of the information so I could get the general values, but this is far better!


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