Method for fabricating damped propshaft assembly
AssigneeAmerican Axle & Manufacturing, Inc.
InventorsJason Ley, Zhaohui Sun, William Braun, Jeffrey P. Nyquist, Michael A. Voight
Life of this patent
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Abstract
A method for forming a propshaft assembly. The method includes: providing a hollow shaft; tuning a mass and a stiffness of at least one liner to form an intermediate damper, the intermediate damper being configured to attenuate at least one of a bending moment vibration and a torsion mode vibration that occurs at a first predetermined frequency; tuning the intermediate damper to form a tuned damper, the tuned damper attenuating the at least one of the bending moment vibration and the torsion mode vibration at the first predetermined frequency and also attenuating shell mode vibration; and installing the tuned damper into the hollow shaft.
Claims22
A method for manufacturing a shaft assembly for a driveline system, the driveline system including a first driveline component and a second driveline component, the shaft assembly being adapted to transmit torque between the first driveline component and the second driveline component, the method comprising:
- providing a hollow shaft;
- tuning a mass and a stiffness of at least one liner to form an intermediate damper, the intermediate damper being configured to attenuate one or more of a bending moment vibration and a torsion mode vibration that occurs at a first predetermined frequency, but not being configured to substantially damp shell mode vibration occurring at a frequency that is less than or equal to a predetermined threshold;
- coupling a damping member to the intermediate damper to form a tuned damper, the damping member being configured to primarily attenuate shell mode vibration at one or more desired frequencies, the tuned damper attenuating the at least one of the bending moment vibration and the torsion mode vibration at the first predetermined frequency and also attenuating shell mode vibration;
- and
- installing the tuned damper into the hollow shaft.
A method for manufacturing a shaft assembly for a driveline system, the driveline system including a first driveline component and a second driveline component, the shaft assembly being adapted to transmit torque between the first driveline component and the second driveline component, the method comprising:
- providing a hollow shaft;
- tuning at least one liner to form a tuned reactive absorber for attenuating bending mode vibrations, said liner not being configured to substantially damp shell mode vibration occurring at a frequency that is less than or equal to a predetermined threshold;
- installing a damping member to the tuned reactive absorber to provide multimode, multi-frequency resistive vibration damping of shell mode vibration and at least one of torsion mode vibration and bending mode vibration;
- and
- inserting the at least one liner with the damping member into the shaft member.
A method for manufacturing a shaft assembly for a driveline system, the driveline system including a first driveline component and a second driveline component, the shaft assembly being adapted to transmit torque between the first driveline component and the second driveline component, the method comprising:
- providing a hollow shaft;
- tuning at least one liner to form a tuned reactive absorber for attenuating one or more of bending mode vibrations and torsion mode vibrations, said liner not being configured to substantially damp shell mode vibration occurring at a frequency that is less than or equal to a predetermined threshold;
- coupling a damping member to the at least one liner to form a tuned damper, the tuned damper being the tuned reactive absorber that is configured to attenuate the at least one of the bending mode vibrations and the torsion mode vibrations, the tuned damper also being a multi-mode, multi-frequency resistive absorber that is configured to attenuate shell mode vibrations;
- and
- inserting the further tuned at least one liner into the shaft member.
Dependencies are inferred from the claim text.