Vibration damper, vibration damping apparatus, mounting method of vibration damper, and vibration damping method
AssigneeNok Corporation
InventorsYutaka ORIOKU, Naoya IWATA
Life of this patent
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Abstract
Two or more target points different in amplitude in a natural mode, which exist in a housing of an object to be damped such as an engine, a gearbox, motors, or the like are located. Among these target points, an arm is fixed at a position relatively small in amplitude, and a vibration absorber provided at the free end of the arm is pressed against a position (relatively large in amplitude. When vibrations occur in the object, the vibration absorber holds the target point relatively large in amplitude while the arm is following the vibrations of the target.
Claims8
A vibration damper comprising:
- an arm fixed at a position relatively small in amplitude among two or more target points different in amplitude in a natural mode at a specific natural frequency;
- and
- a vibration absorber provided on the arm so as to hold a position relatively large in amplitude among the target points.
A vibration damping apparatus comprising:
- an arm fixed at a position relatively small in amplitude among two or more target points different in amplitude in a natural mode at a specific natural frequency;
- and
- a vibration absorber provided on the arm so as to hold a position relatively large in amplitude among the target points.
A mounting method of a vibration damper comprising:
- locating two or more target points different in amplitude in a natural mode at a specific natural frequency;
- fixing an arm at a position relatively small in amplitude among the target points;
- and
- pressing a vibration absorber provided on the arm against a position relatively large in amplitude among the target points.
A vibration damping method comprising:
- when vibrations occur in an object, causing an arm fixed at a position relatively small in amplitude among two or more target points different in amplitude in a natural mode at a specific natural frequency to follow the vibrations of the object;
- and
- while the arm is following the vibrations of the object, holding a position relatively large in amplitude among the target points by a vibration absorber provided on the arm.
Dependencies are inferred from the claim text.