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4results about How to "Not easy to stack" patented technology

A three-prism type tuned mass damper suitable for large-span cantilever structure

ActiveCN117211434BExpand energy consumption mechanismReduced dynamic responseSpringsBridge structural detailsFoam rubberPrism
This invention relates to a triangular prism-type tuned mass damper suitable for large-span cantilever structures, comprising a triangular prism box (1), a particle damping unit (4) disposed within the triangular prism box (1), and a steel mass block (3). A high-damping spring (2) is located below the triangular prism box (1). The particle damping unit (4) includes a particle damping chamber (5), three different sized particle balls, and a foamed rubber pad (9). When the structural vibration amplitude is small, the particle balls dissipate energy by compressing the foamed rubber pad and rolling; when the structural vibration amplitude is large, the particle balls dissipate energy by colliding and compressing the foamed rubber. Compared with the prior art, this invention achieves a phased energy dissipation mechanism while solving the problems of narrow vibration reduction bandwidth, large motion stroke, and noise generated by particle collisions in traditional mass tuned dampers.
Owner:TONGJI UNIV

Multifunctional fireproof anticorrosive paint and production process thereof

The invention relates to the technical field of coatings, and particularly discloses a multifunctional fireproof anticorrosive coating and a production process thereof. The multifunctional fireproof anticorrosive paint is prepared from the following raw materials in parts by weight: 10 to 15 parts of silicone acrylic emulsion, 6 to 8 parts of phosphorus flame retardant, 12 to 15 parts of acrylic resin, 10 to 20 parts of modified aerogel, 2 to 4 parts of curing agent, 4 to 8 parts of metal powder, 5 to 8 parts of bentonite and 25 to 28 parts of solvent, and the modified aerogel is aerogel prepared by modifying methacrylic acid-2-hydroxyethyl phosphate; the preparation method comprises the following steps: respectively adding the phosphorus flame retardant, the bentonite, the acrylic resin and the metal powder into the silicone acrylic emulsion, adding one part of the solvent, stirring, mixing, grinding, adding the modified aerogel and the curing agent, continuously stirring, adding the other part of the solvent, uniformly stirring and mixing, filtering by using a screen, and packaging. The composition provided by the invention has the advantages of good fireproof performance and corrosion resistance.
Owner:HENAN SUNSHINE ANTICORROSIVE PAINTING CO LTD