Mark N Ranek

age ~66

from Troy, MI

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Torsional Active Vibration Control System
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US Patent:

6889803, May 10, 2005
Filed:

Oct 11, 2002
Appl. No.:

10/269354
Inventors:

David Paul Schankin - Harper Woods MI, US
Mark Norman Ranek - Clarkston MI, US
Daniel Victor Sagady - Clarkston MI, US
Assignee:

American Axle & Manufacturing, Inc. - Detroit MI
International Classification:

F16F007/10
US Classification:

188379, 464180, 74574, 1882667
Abstract:

A damper mechanism for absorbing torsional vibrations in a rotating shaft. The damper mechanism includes a vibration absorbing mechanism and at least one actuator that is controllable to affect the torsional vibration absorbing characteristics of the vibration absorbing mechanism.

Torsional Actuation Nvh Test Method
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US Patent:

6907774, Jun 21, 2005
Filed:

Sep 2, 2004
Appl. No.:

10/932715
Inventors:

Donald Joseph Kurecka - Rochester Hills MI, US
Mark Norman Ranek - Clarkston MI, US
David Paul Schankin - Harper Woods MI, US
Zhaohui Sun - Rochester Hills MI, US
Assignee:

American Axle & Manufacturing, Inc. - Detroit MI
International Classification:

G01M019/00
US Classification:

731181
Abstract:

A method for evaluating energy transmission from an axle through a vehicle suspension system. The methodology employs a torsional actuator to apply input energy to the vehicle in a manner that mimics the energy that is generated by the axle during the operation of the vehicle so that both the driving load and the vibration induced by gearset motion variation are simulated. Since the energy input can be quantified and monitored, the same amount of torque can be applied during each test to permit the technician to fully comprehend differences in the designs of several axles on the transmission of noise and vibration.

Torsional Active Vibration Control System
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US Patent:

7004291, Feb 28, 2006
Filed:

Oct 18, 2004
Appl. No.:

10/967813
Inventors:

David Paul Schankin - Harper Woods MI, US
Mark Norman Ranek - Clarkston MI, US
Daniel Victor Sagady - Clarkston MI, US
Assignee:

American Axle & Manufacturing, Inc. - Detroit MI
International Classification:

F16F 9/512
US Classification:

1882661, 188378, 464180
Abstract:

A method for damping torsional vibrations in a rotating shaft. The method includes coupling an actuator to a shaft; rotating the shaft; determining an amount of torsional vibration in the shaft; and controlling the actuator in response to the amount of torsional vibration and a rotational position of the shaft to damp the torsional vibration in the shaft.

Torsional Actuation Nvh Test Method
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US Patent:

20040069053, Apr 15, 2004
Filed:

Oct 11, 2002
Appl. No.:

10/269578
Inventors:

Donald Kurecka - Rochester Hills MI, US
Mark Ranek - Clarkston MI, US
David Schankin - Harper Woods MI, US
Zhaohui Sun - Rochester Hills MI, US
International Classification:

G01L003/26
US Classification:

073/114000
Abstract:

A method for evaluating energy transmission from an axle through a vehicle suspension system. The methodology employs a torsional actuator to apply input energy to the vehicle in a manner that mimics the energy that is generated by the axle during the operation of the vehicle so that both the driving load and the vibration induced by gearset motion variation are simulated. Since the energy input can be quantified and monitored, the same amount of torque can be applied during each test to permit the technician to fully comprehend differences in the designs of several axles on the transmission of noise and vibration.