36 results about "Inelastic collision" patented technology

An irradiation method and system for irradiating a target volume, the method comprising: providing thermal neutron absorbing nuclides (such as in the form of a high neutron cross-section agent) at thetarget volume; and producing neutrons by irradiating nuclei in or adjacent to the target volume with a beam of particles consisting of any one or more of protons, deuterons, tritons and heavy ions, thereby prompting production of the neutrons through non-elastic collisions between the atoms in the path of the beam (including the target) and the particles. The neutron absorbing nuclides absorb neutrons produced in the non-elastic collisions, thereby producing capture products or fragments that irradiate the target volume.

The invention relates to a flywheel body with a shock absorber. The flywheel body with the shock absorber comprises a rim, spokes, a wheel hub, a flange and particle shock absorbers; every particle shock absorber comprises a shock absorber chamber, particles or powder and a shock absorber end cover; the particle shock absorbers are evenly distributed in the rim of the flywheel body; when the flywheel body is externally driven, system energy is consumed due to inelastic collision and abrasion between the particles and the particles and an empty chamber, and accordingly the purpose of improving the shock vibration resistance capability of the flywheel body is achieved. The flywheel body with the shock absorber has the advantages of being obvious in shock absorbing effect, low in cost, simple in structure, wide in suitable temperature range, stable in performance, long in service life, high in reliability and small in influence to integral utilization due to the fact that the unbalance capacity of the flywheel body does not change fundamentally after environment tests.

The invention relates to a two-degree-of-freedom collision nonlinear vibration-eliminating device, and belongs to the field of structural engineering vibration controlling. The two-degree-of-freedom collision nonlinear vibration eliminating device comprises a structure bottom plate 1, a lower layer shell 3, a lower layer mass block 4, an upper layer mass block 9, a collision contacting pin 5, a lower layer linear spring 2, an upper layer linear spring 6, an upper layer shell 7, a motion guiding shaft 8 and a fixing bolt 10. The lower layer mass block 4, the upper layer mass block 9 are connected with the structure bottom plate 1 and the upper layer shell 7 through the lower layer linear spring 2 and the upper layer linear spring 6; and when the vibration eliminating device reaches a specified position, inelastic collision occurs between the lower layer mass block 4 as well as the upper layer mass block 9 and the lower layer shell 4 through the collision contacting pin 5, mechanical energy in the structure is changed, and the goal of vibration reduction is achieved. According to the two-degree-of-freedom collision nonlinear vibration eliminating device, compared with a traditional vibration absorber and a damper, the mechanical energy of a system can be consumed in a wide range, and response of the structure is rapidly reduced, and the two-degree-of-freedom collision nonlinear vibration eliminating device has the prospect of wide application in practical engineering.

The invention discloses a centrifugal fan volute employing granular damping vibration attenuation. The centrifugal fan volute comprises a volute body, wherein the volute body is provided with an air inlet (4); a centrifugal fan (7) is arranged in the volute body and is driven by a motor (8). The centrifugal fan volute is characterized in that the volute body consists of an inner volute (1) and an outer volute (2); a vibration attenuation and noise reduction chamber is formed between the inner volute (1) and the outer volute (2) and is filled with damping vibration attenuation granules (6). According to the centrifugal fan volute, the chamber between the inner volute and the outer volute is filled with spherical granules, the non-elastic collision and the friction between the granules and between each granule and the wall of the chamber are caused by the vibration of the inner volute, the energy is consumed, and the aim of vibration attenuation is achieved; meanwhile, the radiation noise of the volute can be reduced. The centrifugal fan volute can be applied to the industrial fields of energy power, petrochemical industry, petrochemical industry and the like, and the field of national defense and military industry.

The invention discloses a cleaning liquid collecting device comprising an air inflow portion, a cleaning liquid collecting portion, and an air-liquid separating portion. The air inflow portion supplies air to the cleaning liquid collecting portion. An annular air curtain is formed at an air outlet and achieves inelastic collision with cleaning liquid separated from the surface of a wafer. Thus, the cleaning liquid is changed in moving direction, enters an air-liquid collecting cavity and is separated and exhausted by the air-liquid separating portion. The cleaning liquid collecting device may reduce back-splash of cleaning medium at the sidewall of a cleaning liquid collecting structure, prevents secondary pollution, and improves liquid cleaning medium recovery efficiency.

The invention relates to the generation technology of nanosecond pulsed light, in particular to a device and method for generating a nanosecond chirped pulse light source. The invention solves the problem that the existing nanosecond pulsed light cannot block the inelastic collision of atoms and control the coherence of the atom pairs. A device for generating a nanosecond-level chirped pulse light source, including a master laser, a signal generator, a slave laser, a reference laser, and a TeO 2 Crystal, photodetector, oscilloscope, second polarizing beam splitting prism, fiber coupling head, optical fiber; wherein, between the output end of the master laser and the input end of the slave laser, a first mirror and a first polarizing beam splitting prism are arranged in sequence The optical path formed by connecting; the first polarization beam splitter is set at the output end of the slave laser and TeO 2 Between the input terminals of the crystal; TeO 2 An optical path composed of a second reflection mirror and a second half-wave plate sequentially connected in series is provided between the output end of the crystal and the input end of the second polarization beam splitter. The invention is applicable to the generation of nanosecond pulsed light.