摘要:
A method for controlling vibrations includes receiving the vibrations from a vibration-generating substructure at at least two vibration diverters and diverting the vibrations away from each of the vibration diverters, using the respective vibration diverters, to a vibration confiner that interconnects the vibration diverters. The vibration diverters can include passive elements, e.g., plates, ribs, notched plates, plates having wells, etc., active elements, e.g., actuators, sensor/actuators, etc., or a combination of passive and active elements. The vibration confiner can include a passive layer damping material for dissipating vibrations.
摘要:
Methods and apparatus are provided. A mount adapted to connect a vibration source to a support structure has a first elastomeric layer having a first stiffness, and a second elastomeric layer connected to the first elastomeric layer and having a second stiffness that is greater than the first stiffness.
摘要:
A method for controlling vibration energy in a structure having a vibrating member using a vibration confinement device is provided. The vibrating member has boundaries and vibrates relative to the boundaries. The method includes selecting a vibration confinement region in the vibrating member relative to the boundaries. Determining an effective torsional stiffness and an effective translational stiffness for the vibration confinement device is included in the method. The method includes determining an operating position relative to the boundaries for the vibration confinement device on the vibrating member to define a determined position. The method includes positioning the vibration confinement device at the determined position to substantially confine the vibration energy to the vibration confinement region.
摘要:
A motor noise silencer reduces noise at a source, such as an unbalanced electromechanical motor. The silencer, in one embodiment, comprises a multi-layer shell and an integrated vibration-based cooling system. The shell has an inner layer, a middle sound and vibration absorbing layer, and an external layer. The middle layer offers a soft coupling between the outer and inner layers. Heat trapped within the silencer is channeled out by utilizing a vibratory motion of a source (i.e., motor) and motor support system. The silencer provides noise reduction while providing ventilation using vibration generated by the motor.
摘要:
An embodiment of a building may include a wind-energy-conversion system with a duct that may be a substantially vertical converging nozzle. An energy extractor may be fluidly coupled to the duct. For some embodiments, a space within the building may be part of the wind-energy-conversion system and may be fluidly coupled to the energy extractor by the duct.
摘要:
A kinetic hydropower generation system has a turbine and a generator coupled to the turbine. An underwater intake nozzle assembly is fluidly coupled to the turbine. For one embodiment, an underwater tower nozzle may be fluidly coupled between the turbine and the underwater intake nozzle assembly. The underwater intake nozzle assembly may include a collector and a converging nozzle.
摘要:
A turbine-intake tower for delivering wind to a turbine has a hollow support column, an intake nozzle assembly rotatably coupled to the support column, and a tower nozzle disposed within the support column. The intake nozzle assembly is configured to receive and to accelerate wind. The tower nozzle is configured to receive the wind from the intake nozzle assembly and to further accelerate the wind received from the intake nozzle assembly for delivery to the turbine.
摘要:
A motor includes a resonator and a vibration source coupled to the resonator. The vibration source can be a piezoelectric vibration source. A drive shaft is coupled to the resonator via a linkage. The vibration source(s) impart a vibration along the resonator such that a lateral displacement of the resonator is focused at a location coupled to the linkage. The lateral displacement is coupled to the drive shaft to provide rotational motion of the drive shaft.
摘要:
A screening machine that uses electrically controlled transducers to vibrate a separating screen. The transducers can be piezoelectric patches, discrete piezoelectric components, or electromagnetic shakers. Further, the transducers can be coupled directly to the screen or through a vibration amplifier. The transducers and/or amplifiers can be coupled to the screen at different attachment locations. One or more of the transducers can be used as sensors to provide feedback for operation control.
摘要:
An intake assembly for a wind-energy conversion system has a substantially vertical converging nozzle, an object extending into the nozzle, and a converging flow passage between the object and the nozzle. For some embodiments, the object may be another nozzle. There may be vanes in one or both nozzles in further embodiments. The object may be configured to move in yet other embodiments.