Products/Services for Belleville Spring Natural Frequency

  • Power Springs and Spring Motors-Image
    Power Springs and Spring Motors - (27 companies)
    Power springs and spring motors are rotational-drive springs that are wound tightly and mounted on an arbor. They are used in applications such as retractable reels, tape measures, and retracting seat belts. Power Springs and Spring Motors... Learn More
  • Natural Fibers and Fabrics-Image
    Natural Fibers and Fabrics - (212 companies)
    ...with a gage that contains two flat cylinders for a relevant sample area and a spring-loaded mechanism for a consistent, applied pressure. Overall width or outer diameter (OD) - The cut width of a roll of fabric or textile material. Overall length. Fabric... Search by Specification | Learn More
  • Spring Washers-Image
    Spring Washers - (147 companies)
    Spring - Disc Springs, Belleville Washers UK. Circlips - Disc Spring Selection. WCL Company - Spring Washers: Descriptions/Designs. Schnorr Corp. - Handbook for Disc Springs. Bauer Springs - Disc Springs. Seastrom Washers - Spring Washers. Mubea Disc... Search by Specification | Learn More
  • Constant Force Springs-Image
    Constant Force Springs - (38 companies)
    Constant force springs are a variety of extension spring. A strip of steel with a preset curvature is coiled tightly so that each turn of the strip rests on its inner neighbor. The spring is actuated in a pulling, liner motion with the deflection... Search by Specification | Learn More
  • Torsion Springs-Image
    Torsion Springs - (254 companies)
    Helically wound springs that deflect torque rotationally, torsion springs express mechanical energy through the property of elasticity: the spring action happens when it is twisted rather than compressed or pulled. Despite the name, torsion springs... Search by Specification | Learn More
  • Gas Springs - (114 companies)
    The maximum cycles per minute are the rated frequency of compression/extension cycles. Compression or Extension. The absorption or damping action for gas springs can be compression or extension. In a compression gas spring the shock absorption... Search by Specification | Learn More
  • Extension Springs - (286 companies)
    Helically wound to oppose resistant forces, extension springs have consistent mechanical energy to return to its no-load, compressed position. The ends of the spring are attached to components intended to move apart, with the extension spring... Search by Specification | Learn More
  • Compression Springs - (382 companies)
    Compression springs are the most recognizable of spring and are intended to oppose compaction in the direction of the axis. The spring is extended at rest, shorten and store energy when a load is applied, and is one most efficient energy storage... Search by Specification | Learn More
  • Flat Springs - (106 companies)
    Flat springs are flat strips of material that, when deflected by an external load, store and release energy. Flat springs are actually small, stamped metal components that function like a spring by controlling deflection within small or restricted... Learn More
  • Die Springs - (54 companies)
    ...and reliable resistance, die springs also find use in other industries. Die Spring Operation. Utilizing rectangular wire with a rounded profile, die springs take advantage of the pitch between coils, allowing more wire per spring, reducing stress... Search by Specification | Learn More
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  • Study on a PZT actuator based on pre-stressed mechanism
    The ³zero´ spring rate for a Belleville spring assembly at the neutral position of the elastic suspension if approximated will produce a stable disc spring suspension having an infinitely low natural frequency provided this assembly is deflected to a flat stressed condition.
  • Development of an Innovative Pre-stressed PZT Actuator by FEA and Experiment Verification
    The "zero" spring rate for a Belleville spring assembly at the neutral position of the elastic suspension if approximated will produce a stable disc spring suspension having an infinitely low natural frequency provided this assembly is deflected to a flat stressed condition.
  • http://dspace.mit.edu/bitstream/handle/1721.1/33258/32145005.pdf?sequence=1
    This Model II version utilizes Belleville springs rather than a helical spring and does not deflect the gas flow as much. Natural frequency is higher (515 cps) because of stiffer springs and smaller moving mass, reducing acceleration-loading effects.
  • Pressure Reactive Piston Technology Investigation and Development for Spark Ignition Engines
    The spring constant and preload are determined experimentally by using an Instron Machine. where K is spring constant, Fpre is preload, and c is the damping coefficient of the Belleville spring . It is important to note that the calculated natural frequency of the piston crown (∼41,000 rpm), is much higher than the normal operating engine speed. y2 is the distance between the crankshaft axis and lower piston and its second derivative is...
  • Extended life PZT stack test fixture
    For this fixture the optical surface was eliminated and an additional Belleville washers stack was added at... This additional spring was introduced to reduce the influence of the test fixture natural resonance frequency in selecting the frequency at which the stack was to .
  • Overview of ZTH
    The generator and foundation constitute a damped spring mass system with a low natural frequency . ...a 5450 tonnes (6,000 ton) concrete inertia block which rests on 60 belleville washer type, damped...
  • On the Design of the Piecewise Linear Vibration Absorber
    ...to-use solution for the case of harmonic forcing by advocating the choice of softening Belleville washers. However, this arrangement is effective only for the situation where the excitation frequency is below the structure’s natural frequency. ...expand the arsenal of available devices by proposing the use of piecewise linear springs in absorber design.
  • Energy-harvesting power sources for gun-fired munitions
    The Belleville washers also pre-load the base of the generator spring against the piezoelectric stack; they are deflected by the stopper (1) a prescribed distance to provide the pre-load force; the stopper (1) being pinned to the housing (2) during... This generator employs a helical machined mass-spring (3) with a designed rate of 3.1x106 N/m, a tested rate of 2.1x106 N/m, and an effective mass of approximately 2.82 g, indicating an approximate natural frequency of 4340 Hz.
  • Event sensing and energy-harvesting power sources for gun-fired munitions
    The Belleville washers also pre-load the base of the generator spring against the piezoelectric stack; they are deflected by the stopper (1) a prescribed distance to provide the pre-load force; the stopper (1) being pinned to the housing (2) during... tested rate of 2.1x106 N/m, and an effective mass of approximately 2.82 g, indicating an approximate natural frequency of 4340 Hz.
  • Development and commercialization strategy for piezoelectric energy-harvesting power sources for gun-fired munitions
    The Belleville washers also pre-load the base of the generator spring against the piezoelectric stack; they are deflected by the stopper (1) a prescribed distance to provide the pre-load force; the stopper (1) being pinned to the housing (2) during... tested rate of 2.1x106 N/m, and an effective mass of approximately 2.82 g, indicating an approximate natural frequency of 4340 Hz.