Mechanical amplifier
AssigneeTRW Inc.
InventorDavid A. Priem
Life of this patent
Estimating the term…
Abstract
A shaker system (10) that employs a mechanical amplifier (40) for increasing the shaking capacity of the shaker (14). The mechanical amplifier (40) includes a spring (54) positioned within a support column (42) where the spring (54) is attached to an interface ring (24) supporting the load (26) to be tested at one end and the ground at an opposite end. The spring (54) can take on different configurations, and in one embodiment is a sinusoidal spring (54) having half-circle sections (60) of a predetermined radius to satisfy the resonant frequency requirements for a particular load. The resonant frequency of the spring (54) causes the shaking to be amplified, meeting the testing requirements.
Claims11
A shaker system for shaking a mass, said shaker system comprising:
- a shaker operable to provide a shaking motion at a predetermined frequency;
- an interface member connected to the shaker and supporting the mass;
- and
- at least one spring assembly being rigidly supported and being connected to the interface member, said spring assembly including a spring attached to the interface member, said spring compressing and expanding in response to the shaking motion from the shaker, said spring having a resonant frequency about the same as the predetermined frequency so that the spring amplifies the shaking motion provided by the shaker.
A shaker system for shaking a mass, said shaker system comprising:
- a shaker operable to provide a shaking motion at a predetermined frequency;
- an interface member connected to the shaker and supporting the mass;
- and
- at least one spring assembly being rigidly supported and being connected to the interface member, said spring assembly including a spring attached to the interface member and a column enclosure, said spring being mounted in the column enclosure and extending beyond an end of the enclosure to contact the interface member, said enclosure providing lateral support to the spring, said spring compressing and expanding in response to the shaking motion from the shaker, said spring having a resonant frequency about the same as the predetermined frequency so that the spring amplifies the shaking motion provided by the shaker.
A shaker system for shaking a mass, said shaker system comprising:
- a shaker operable to provide a shaking motion at a predetermined frequency;
- an interface member connected to the shaker and supporting the mass;
- and
- at least one spring assembly being rigidly supported and being connected to the interface member, said spring assembly including a spring attached to the interface member, a column enclosure, and at least one friction member attached to the end of the spring proximate the interface member and being slidable along an inside surface of the enclosure, said enclosure providing lateral support to the spring, said spring compressing and expanding in response to the shaking motion from the shaker, said spring having a resonant frequency about the same as the predetermined frequency so that the spring amplifies the shaking motion provided by the shaker.
A shaker system for shaking a mass, said shaker system comprising:
- a shaker operable to provide a shaking motion at a predetermined frequency;
- an interface member connected to the shaker and supporting the mass;
- and
- a plurality of spring assemblies symmetrically positioned around the interface member being rigidly supported and connected to the interface member, each spring assembly including a spring attached to the interface member designed to have a resonant frequency, each spring having a resonant frequency about the same as the predetermined frequency, each spring compressing and expanding in response to the shaking motion from the shaker so that the spring amplifies the shaking motion.
A shaker system for shaking a mass, said shaker system comprising:
- a shaker operable to provide a shaking motion at a predetermined frequency;
- an interface member connected to the shaker and supporting the mass;
- and
- a plurality of mechanical amplifiers positioned around the interface member, each mechanical amplifier including a hollow column having side walls and being rigidly supported, a spacer member positioned within the column and being rigidly supported, and a spring positioned within the column and being connected to the spacer member at one end and the interface member at an opposite end, said spring compressing and expanding in response to the shaking motion from the shaker and having a resonant frequency about the same as the predetermined frequency so that the spring amplifies the shaking motion.
Dependencies are inferred from the claim text.