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158 results about "Contour form" patented technology

Carbon beaverboard anchorage

The invention relates to an anchorage device, in particular to a carbon fiber plate anchorage device used in civil engineering and building construction. The anchorage device consists of an anchor plate and a clamping piece; the anchor plate is a whole part and is internally provided with a wedged-shape through hole, the clamping piece is a two-piece type wedge block, the clamping piece is wedged into the anchor plate for tightly clamping the carbon fiber plate, then the wedge block is in close fit with the wedged-shape through hole in the anchor plate; the anchor plate is of a cylinder with rectangular or square or elliptic or circular cross section, the anchor plate is internally provided with the wedged-shape through hole with the rectangular or square or elliptic or circular cross section and tapering longitudinal section, and the folding contour formed after the clamping piece is wedged into the anchor plate for tightly clamping the carbon fiber plate is the same as that of the wedged-shape through hole with the rectangular or square or elliptic or circular cross section and tapering longitudinal section in the anchor plate; the clamping face of the clamping piece has a layer of a contact reinforcing material of the carbon fiber plate; and the contact surface of the clamping piece and the anchor plate is coated with lubricating oil or lubricating grease. The anchorage device has the advantages of reliable anchoring property, simple and compact structure, convenient manufacture, construction and operation, high efficiency and various shapes, and the anchorage device can meet the requirement of different construction environments.
Owner:LIUZHOU OVM MASCH CO LTD

Steel rail contour real-time form identification and distortion calibration method based on three-layer matching

The invention discloses a steel rail contour real-time form identification and distortion calibration method based on three-layer matching. The method aims at a problem of high difficulty for accurately identifying and calibrating contour distortion in high-precision dynamic detection on steel rail contour by means of laser displacement technology. The method comprises the steps of calculating a matching degree through constructing a three-layer matching area which is composed of a contour rail jaw point, a rail head linear area and a rail waist characteristic area, and comparing the matching degree with a statistics threshold, thereby accurately differentiating the measured contour form in real time; and aiming at an identified distorted contour, through preliminary alignment of the template contour and iterative optimization of the matching degree, obtaining an optimal affine transformation parameter for calibrating the distorted contour. Through experiments, the method effectively eliminates influence of vibration to measured data of the steel rail contour and furthermore improves contour measurement precision. Furthermore the method supplies a new though and a technical reference for popularization and application of laser displacement technology in high-precision dynamic detection on the steel rail contour.
Owner:HUNAN UNIV
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