MICHAEL HUNTER
Broker in Oakdale, MA
License number
Massachusetts 74158
Issued Date
Dec 1, 1985
Expiration Date
Oct 31, 1990
Type
Salesperson
Address
Address
Oakdale, MA 01583
Personal information
See more information about MICHAEL HUNTER at radaris.comName
Address
Phone
100 Saint Thomas More Dr, Chestnut Hill, MA 02467
118 Goodmans Hill Rd, Sudbury, MA 01776
174 Highland Ave, Holden, MA 01520
595 Ware St, Mansfield, MA 02048
65 Bear Hill Rd, North Andover, MA 01845
Professional information
Method For Generating Axis Control Data For Use In Controlling A Grinding Machine And The Like And System Therefor
US Patent:
4791575, Dec 13, 1988
Filed:
Oct 31, 1986
Appl. No.:
6/925439
Inventors:
Harold G. Watts - Holden MA
Michael R. Hunter - West Boylston MA
Randy E. Thompson - Shrewsbury MA
Michael R. Hunter - West Boylston MA
Randy E. Thompson - Shrewsbury MA
Assignee:
The Pratt & Whitney Company, Inc. - West Hartford CT
International Classification:
G06F 1546
US Classification:
36447436
Abstract:
The cam lift data is analyzed (110) through the use of a fast fourier transform (FFT) (116) to thereby obtain FFT coefficients (118) which define the amplitude and frequency content of the cam lift data. Through a combination of the kinematic model and an inverse FFT procedure, an axis control function including a position control function (Eq. 1 and Eq. 14) is determined (128) for each axis. Dynamic compensation (130) of each axis is provided for system lags and inertia loads by altering the axis control function as a proportion of the axis velocity and acceleration (130), respectively. For each controlled axis an independent vector and a corresponding dependent vector containing axis control data is generated (132). During the actual control of first and second drive motors (72, 70) of the grinding machine, position and velocity feedback signals are generated for each axis by feedback devices (82, 78). A master/slave control arrangement is provided between the two axes wherein the positional feedback signal (186) from one axis is utilized in the control of the other axis to eliminate time lags between control of the two axes.