1125 results about "Structural deformation" patented technology

An improved golf club head has at least one fin, rib or arch extending inside the club head structure and varying in height. The fins run along the inside of the club head perimeter structure. The fins are perpendicular to the face resulting in stiffening and strengthening of the club head, thereby resisting structural deformation and mechanical shockwave migration that occurs upon impact with the golf ball. The fins traverse the length or a portion of the length of the club head along an internal perimeter. The fins are incorporated on either the crown and / or the sole, but can be added to other portions of the club head, such as the skirt or club face should additional stiffening and strengthening be desired. The fins, can vary in size and shape and location depending on the desired stiffness and on the size, shape and material of the club head.

The invention provides a finite element analysis method for the temperature action on a prestressed reinforced concrete continuous rigid frame bridge. The finite element analysis method is used for analyzing and calculating the stress and displacement distribution in the construction and finished bridge stage under different temperature gradient models, and provides references for designing and optimizing the prestressed reinforced concrete continuous rigid frame bridge. Through calculational analysis based on finite elements and the structural mechanics, the forward-calculation method is adopted for structural distortion and stress analysis according to the actual construction loading sequence of the bridge structure, so that the complex mechanics problem of box girder temperature self-stress, temperature secondary internal force in a prestressed reinforced concrete statically indeterminate structure and secondary stress of the temperature secondary internal force is solved easily, conveniently and efficiently, and the finite element analysis method has important practical value.

The pillar structure to which the passenger cabin end of the hood ridge panel is connected, is arranged have different localized structural deformation resistances which buckle / deform in a manner which causes the hood ridge panel to reorient in response to a vehicle structure deforming force being applied to the front of the vehicle during a collision, and results in the force, which passes through the hood ridge panel, being redirected by a load-converting and transmitting member included in the pillar, up and along an upper rearwardly angled upper portion of the pillar. This force redirection produces sufficient resistance to induce compressive bucking in the structure forward of the passenger cabin and thus attenuate damage to the cabin structure.

A thin-film piezoelectric resonator and method of fabrication that includes a barrier layer of material between the underlying electrode and a layer of piezoelectric material. For example, in a resonator that uses zinc oxide for the layer of piezoelectric material, a barrier layer of aluminum nitride is deposited upon an underlying aluminum electrode to protect the aluminum electrode from oxidation or structural deformation during the subsequent deposition of the piezoelectric layer of zinc oxide. The barrier layer of aluminum nitride is deposited in a manner so as to provide a substrate having a substantial degree of uniformity of crystal orientation upon which the layer of piezoelectric material may then be deposited in a manner such that the piezoelectric layer will, itself, also have a substantial degree of uniformity in the orientations of its crystals. The resonator includes a second electrode deposited upon the upper surface of the piezoelectric material or upon the upper surface of a second barrier layer of aluminum nitride that is deposited upon the upper surface of the piezoelectric layer.

The invention provides a machine body positioning and posture adjusting device, comprising a first positioning device, a second positioning device and a central control device, wherein the first positioning device and the second positioning device are provided with flexible supporting boards for supporting a machine body in an adjusting process; and the central control device is driven in a posture adjusting process and guides the first positioning device and the second positioning device to move. The invention further provides a machine body positioning and posture adjusting method. With the adoption of the machine body positioning and posture adjusting device and method provided by the invention, the structural deformation can be reduced; and the space position posture of the machine body is automatically adjusted for six freedom degrees.

The invention discloses an analog laboratory apparatus of geological structure deformation, which is characterized by the following: setting experimental box on the base rack to display the geological structure; fixing transparent plane board on two sides of experimental box; setting to-and-fro moving pushing-board on two ends; driving the pushing-board by driving mechanism; setting sand hopper on the experimental box; assembling the sand hopper on the level reciprocal walking structure; simulating the structural deformation experiment of syndepositional growth ground; controlling the analog deformation rate of sedimentation rock formation quantatively; controlling and simulating the sedimentation rate quantatively; observing the real-time deformation condition.

Disclosed is an electrochromic device comprising: (a) a first electrode; (b) a second electrode; (c) an electrochromic material; and (d) a gel polymer electrolyte containing an ionic liquid. A method for manufacturing the same is also disclosed. The electrochromic device uses a gel polymer electrolyte comprising an ionic liquid. Therefore, there is no problem related with electrolyte leakage. Additionally, it is possible to manufacture electrochromic devices by using plastic materials, because the ionic liquid gel polymer electrolyte permits structural deformation with ease. Further, because the electrochromic device uses an ionic liquid, it is possible to minimize side reactions between constitutional elements of an electrochromic device and electrolyte.

The invention relates to a laser amplification measurement method of the deformation of a twisted structure by utilizing laser. The technical proposal of the invention is as follows: a support is arranged on a rotation angle part to be measured of the twisted structure to be measured, a laser beam transmitter is arranged on the support, a scale optical target is set, when the twisted structure to be measured is displaced or twisted, a laser beam which is transmitted by the laser beam transmitter is displaced at a projection point on the optical target, a deformation valve of the rotation angle or a twist angle of a measurement point of the twisted structure to be measured is obtained according to the formula that Theta is equal to arctg (Delta divided by L), and the stiffness parameters of the twisted structure to be measured is calculated, thereby obtaining the tiny rotation deformation amount of the point to be measured. The shortcoming that the non-contact measurement instruments are always lack of precision on the long-distance measurement of the tiny deformation of large-scale structures is solved. The laser amplification measurement method of the invention arranges the measurement instrument on a measured object to allow the measurement instrument to move together with the deformed part of the measured object, thereby having the advantage that the tiny displacement to be measured is fully amplified by utilizing the optical lever principle.

A rock stratum double initial support layering method for establishing a large-scale underground structure mainly includes the following steps: excavating the side headings of an arch part, excavating the upper steps on the middle heading of the arch part, setting the double-layer initial supports of the arch part, setting a mud jacking steel pipe, setting an arch springing girder, excavating the lower steps on the middle heading of the arch part, and three-layered excavating the foundation under the middle heading of the arch part and the two side headings of the arch part. The rock stratum double initial support layering method for establishing the large-scale underground structure combines multiple technologies as advanced small pipe, big pipe shed and section steel support with multiple mining excavation technologies such as PBA method, side drifts-support method, CRD method and step method, not only can satisfactorily control the structural deformation and the stratum settlement, but also has the advantages of simple process, convenience for construction and organization, high construction efficiency, saved project cost and the like.

A system is provided for control of a structure immersed in a fluid flow regime. The system comprises a plurality of flow sensors disposed on a surface of the structure, the flow sensors including at least one flow bifurcation point sensor. The system further comprises at least one structural sensor attached to the structure for measurement of a structural parameter. A data processor in communication with the flow sensors and the at least one structural sensor is configured for processing the data signals and for generating and transmitting one or more actuator command signals to effect a desired flow and structural state for the structure. The system also comprises at least one actuator in communication with the data processor. Each of the at least one actuator is configured for effecting, in response to an actuator command signal, one of the set consisting of a structural deformation in at least a portion of the structure, a change in configuration of a control surface of the structure, and an operational change in a flow control device embedded in the structure.

An on-line observable high-temperature three-point bend test system belongs to the technical field of engineering materials, structural deformation and mechanical experiments. The test system comprises a three-point bend load applying device, a high-temperature heating furnace, a deflection measurement device, a temperature measurement device and an on-line observation device. The invention relates to the high-temperature three-point bend test device integrating the on-line real-time observation function, and the surface of a test piece for the three-point bend test device in the high-temperature heating furnace is observed on line by a high-precision industrial camera with filters; the changes of microcosmic morphology, changes of crystal phase and crack propagation on the surface of the test piece in the three-point bend test process are recorded, so as to provide on-line observable test support for studying the deformation and crack of materials at high temperature.

The invention discloses a hybrid welding method and hybrid welding equipment for laser electromagnetic pulse. The method can be used for laser seam welding and laser spot welding technology, a pulsed high magnetic field is applied to a welding region during the process of laser welding on a workpiece with the effect of laser beams so as to mutually react with an induced plasma, a welding pool and a stress strain field through welding and complete welding task. The equipment comprises a laser device, an electromagnetic pulse generator, a numerical control system, an optical transmission system and a laser electromagnetic pulse combined machining head. The combined machining head is used for integrating the laser beams with the pulsed high magnetic field and adjusting the distance between an electromagnetic conversion device and the workpiece; the combined machining head is arranged on a machine tool. The structural deformation can be reduced, the welding quality and machining efficiency are improved, and insurmountable technical problems when a metallic material structure is manufactured through existing single welding technology are solved.

The invention relates to a method and a device of measuring material thermal shock property, which belongs to the technical field of engineering materials, structural deformation and mechanics experiment. The measuring device comprises an air cushion precision optical platform, a temperature controlled switch, a PID temperature controller, an infrared radiation thermometer, an LED lamp bracket, anLED lamp, an A-frame, a lens, a high speed camera, a computer, a test piece, a thermoelectric pair, alumina ceramics, asbestos wire gauze, a heating furnace, a thermal insulation shield, a burette and a stand. The invention combines heating equipment and an optical photographic apparatus, masterly utilizes a digital image cross-correlation method and provides the method and the device of measuring material thermal shock property. The invention has novel train of thought, compact structure and complete system, and can realize quantitative analysis and measurement on the material thermal shockproperty.

The invention relates to a shafting optical alignment method for ship construction, which comprises the following steps: (1) constructing an auxiliary engine room and hermetically finishing all cabins below the deck; (2) welding a stern tube and a front and a rear shaft brackets; (3) lifting a main engine and a gear box in the engine room and sealing a main deck; (4) measuring the baseline of the hull, and trimming according to the structural deformation of the hull; and (5) carrying out shafting optical alignment. According to the shafting optical alignment method, the shafting optical alignment method is carried out after lifting and arranging the main engine and sealing the deck, so that the ship can be constructed simultaneously in multiline to greatly improve the ship construction efficiency.

The invention discloses a damping board based on a negative poisson ratio structure. The damping board comprises a substrate board and damping material. The negative poisson ratio structure is fixed to the substrate board, a plurality of holes are formed in the cross section of the negative poisson ratio structure, holes are formed between the negative poisson ratio structure and the substrate board, and the damping material is filled into the holes as filler. On the basis of the tensile expansion and compressed deformation characteristics of the negative poisson ratio structure, the material far away from the substrate board can be fully deformed through structural deformation, and thus the damping material can be fully utilized, the vibration energy dissipation effect can also be obviously improved, the defects of an ordinary damping board are overcome, and the vibration performance of the damping board is optimized obviously.

The invention discloses a pulsed high magnetic field auxiliary laser welding method and device. The method and device can be applied to laser spot welding and seam welding. According to the method, in the overall welding process, laser beams are emitted to a workpiece to form a welding connector, a high pulsed magnetic field is exerted to the welding connector which is just solidified and the surrounding area, the pulsed magnetic field generates pressure stress on the surface of the workpiece to enable the connector area to have plastic deformation, residual stress is released to lower the degree of stress concentration and the degree of structural deformation of the welding connector, and the fatigue strength of the welding connector is improved. The device comprises a laser, a pulsed magnetic field generator, a numerical control system, an optical transmission system and a laser pulsed magnetic field composite processing head. The processing head is used for integrating the laser beams and the high pulsed magnetic field, and regulating the perpendicular distance between an electromagnetic conversion device and the surface of the workpiece and the horizontal distance between the electromagnetic conversion device and the laser beams. By means of the pulsed high magnetic field auxiliary laser welding method and device, structural deformation can be lowered, welding quality and processing efficiency are improved, and the processing effect which is superior to that of an existing laser welding process is achieved.

The invention discloses a target tracking method based on dynamic graph matching, which is characterized in that a structural model of a dynamic graph is used for effectively tracking a target. The target tracking method mainly comprises six steps of superpixel over-segmentation, extraction of candidate target blocks, creation of an undirected graph, matching of the undirected graph, determination of a target position and updating of a model. The target tracking method has the advantages that the internal structural information of the target can be effectively modeled by using a target tracking model structured with the method, so that the target position can be still precisely determined by the tracking method when the target has greater structural deformation or is severely shielded.

The invention discloses an image-based bridge structure deflection measurement method, which comprises the following steps of: shooting a picture containing a target structure at a position A and a position B in sequence through a camera, and recording the actual distance of the camera at two positions; through a SURF-BRISK feature matching algorithm, matching the two pictures , and performing three-dimensional reconstruction on the target structure by matching with a pre-calibrated internal reference result of the camera system; obtaining three-dimensional coordinates (X, Y and Z) of any feature point on the target structure at the position B of the camera in a world coordinate system, obtaining a target amplification coefficient S of a corresponding measuring point through Z, placing thecamera at the position B for subsequent optical measurement, collecting a series of images before and after structural deformation, and obtaining the target amplification coefficient S through SURF-BRISK feature point matching algorithm, measuring two-dimensional sub-pixel displacement of the structure, and the target amplification coefficient S of a measuring point is used for converting the sub-pixel displacement into actual displacement. Structural features are directly utilized, a target surface does not need to be manually designed, and the method has the advantages of being non-contact,low in cost and high in precision.

The invention relates to a horizontal seamed energy dissipation prestressed shear wall structure, belonging to the technical fields of shock resistance and shock absorption in structure engineering. The shear wall structure comprises a reinforced concrete wall, an energy dissipation device, connecting steel plates, horizontal seams, prestressed reforcing steel, high-strength bolts, anchoring accessories and a foundation. The horizontal seams are arranged in the shear wall structure, and a connecting member or device is used for enhancing the energy dissipation capacity; and simultaneously, vertical high-strength prestressed reforcing steel are arranged in the shear wall to strengthen the connection performance of the structure and improve the rigidity of the structure. Thus, the horizontal seamed energy dissipation prestressed shear wall structure is suitable for industrial and civil buildings in the region where the seismic fortification intensity is higher than 6. The invention has the advantages of simple sturcture, low cost of required materials, good hysteretic energy dissipation capacity, good self-resetting characteristic, small residual structural deformation and no damage.

The invention belongs to the technical field of anti-seepage construction, and in particular relates to a flexible connecting and sealing bitumastic anti-seepage structure of a tunnel deformation joint and a constructing method, which can ensure the normal use of a subway tunnel under the action of fracture formation of the ground. In the technical scheme, the method comprises the following steps: laying a composite layer of modified asphalt anti-seepage plate, pouring reinforced concrete for lining, setting deformation joints, mounting flexible baffles in the deformation joints, utilizing glass fiber cloth to seal gaps of the baffles, and pouring bitumastics to fill gaps of the deformation joints. The anti-seepage structure constructed in the method has the anti-seepage performance of the composite layer of modified asphalt anti-seepage plate, the extension performance and the anti-seepage performance of the bitumastics, and the blocking function of the flexible baffles. Therefore, the anti-seepage structure can ensure the effective sealing of the joint and prevent the significant water leakage accident while fully adapting to the large-displacement slipping deformation in the positions with the deformation joints of the composite lining structure, and has high economic and social benefits.

The invention discloses a construction safety management and control system based on BIM technology, which is applied to safety management and control during the construction period of a constructionproject. The system comprises a background processing system, an infrared sensing device, an alarm device, a sensor, an electronic indicator, a display terminal and a network transmission server, wherein the electronic indicator is placed in a dangerous area of the construction site and is used for displaying the risk situation of the current area; the infrared sensing device is placed in a dangerous area which is used for forbidding personnel to enter in the construction site, and is used for detecting whether a person enters a dangerous area or not; the sensor is arranged at a construction site where accidents usually occur and a key structure position, and is used for monitoring environment data and structural deformation data of the position. Compared with a traditional construction site safety management and control, the system is based on the BIM technology, and the area positioning and information transmission are more accurate and rapid; digital supervision is carried out in the construction area, while real-time early warning is carried out on on-site constructors and monitoring personnel, so that the construction safety management is more simple and effective.

The invention discloses a two-stage micro-displacement amplification mechanism which is characterized in that two triangle displacement zooms are arranged and respectively are a first stage triangle displacement zoom and a second stage triangle displacement zoom, each triangle displacement zoom comprises four sloping sides; the input end of the first stage triangle displacement zoom is linked with a driven element; the output end of the first stage triangle displacement zoom is linked with the input end of the second stage triangle displacement zoom. In the optimized scheme, flexibility hinges are respectively arranged at the joint of the displacement input end and the four sloping sides of the triangle displacement zoom and the joint of the displacement output end and the four sloping sides; the displacement input end of each triangle displacement zoom is provided with a positioning step. Two-stage micro-displacement amplification mechanism provided with by the invention has the advantages of zero friction, zero clearance and zero delay, and is easy to maintenance and service; the mechanism avoids oversized elastic counterforce caused by structural distortion, ensures direction stabilization of the displacement output; the displacement enlargement ratio of the two-stage displacement amplification is greatly improved, and the mechanism has very high practicability.

The invention discloses a construction method of a tunnel waterproof and water drainage system, comprising the following steps: (1) preparing raw materials on a drainage layer; (2) injecting the drainage layer; (3) injecting a waterproof layer. The drainage layer and the waterproof layer of the invention all adopt the construction technology of injection. On the basis of water conductivity function, the drainage layer also has the functions of leveling and adapting to structural deformation, the waterproof layer adopts the construction mode of instantaneous film forming by ultraspeed curing and injecting, and the formed film is an integral structure, thus realizing that the integral structure is seamless and waterproof, the injection surface is free of flow, the film surface is smooth without bubbles and the construction produces no volatile organic compounds, simultaneously greatly improving the construction efficiency and reducing the labor intensity of workers.

The invention discloses a testing device and and testing method for stimulaitng the dynamic oxidation ablation of engine combustor environment, belonging to the technical field of engineering materials, structural deformation and mechanical experiments. The testing device comprises a stimulation combustor, an oxyacetylene heating device, an intelligent water adding control system, a humidity measurement system and a temperature measurement system, an image acquisition processing system and a sample clamping device. A closed chamber for stimulating the evironment of the engine combustor is designed in the invention; the intelligent water adding conrol system is utilized to add water to stimulate the humidity condition of the engine combustor; an oxygen partial pressure control system is utilized to stimulate the oxidation condition of the engine combustor; and meanwhile, the heating device is combined with a high-speed camera. The invention provides a device for stimulating dynamic oxidation ablation under the evironment of the engine combustor and an observation method. The device and method provided by the invention can be used for realizing the real-time observation on the oxidation ablation process of the material and quantitative analysis on the material properties.

The invention discloses an online measuring device for the high-temperature mechanical behavior of a multilayer film matrix structure, belonging to the technical fields of engineering materials, structural deformation and mechanical experiments. The device comprises an isolated wall, an optical system and a data processing and display system, wherein the isolated wall comprises an insulated wall, a heating rod, a transmission window, a thermocouple, a specimen tray and a temperature control panel; and the optical system comprises a laser, a beam expander, an optical reflector, an optical grating, a lens, a filtering screen, a CCD camera and a piezoelectric brake. Through reconstructing the prior heating furnace, the online measuring device combines heating equipment with optical equipment so as to realize stress measurement for the multilayer film matrix structure at a high temperature. Moreover, the online measuring device has compact structure, and can realize online realtime monitoring for the mechanical property changes of the multilayer film matrix structure during heating.

The invention discloses a deformable antenna reflection surface and relates to the antenna reflection surface. The invention aims at solving the problems that the existing reflector antenna can not meet the space environment which is complex and variable and can not carry out orbit thermal deformation control and on-orbit vibration control in space, thereby reducing the precision of the on-orbit reflector antenna and being incapable of meeting various space requirements because the existing space antenna can not have the structural deformation. A driver comprises an end cover, a driving shaft, a housing, a working coil or a conducting wire and a driving functional material body, wherein the end cover is arranged on the housing, the driving shaft is crisscross, one end of the driving shaftis connected with the end cover, the opposite end is connected with the driving functional material body, the other two ends are in contact with the side wall of the housing, the driving shaft can slide along the axial direction of the housing, and the working coil or the conducting wire is arranged between the driving shaft and the housing and positioned outside the driving functional material body. The antenna reflection surface is used for realizing the control of the orbit thermal deformation, the vibration control and the reflection surface deformation of a space-vehicle antenna.

The invention discloses a welding method of dissimilar steel such as 917 low-magnetic steel and CCSB steel, belonging to the welding field of material processing engineering. The welding method is used for manufacturing the welding structures of low magnetic conductivity used for ship manufacture, parts of special vehicles, military equipment and the like. In the invention, a stainless steel solid welding wire ER309L ([Phi]=1.0 mm) suitable for the welding of dissimilar steel, welding equipment and a walking device are adopted; binary mixed gas (Ar+1.5%CO2) is used for protection; flat butt welding, horizontal butt welding and upward butt welding of dissimilar steel such as 917 low-magnetic steel and CCSB steel are performed according to corresponding welding parameters; and full-automatic vertical butt welding is performed by using a full-position automatic welding trolley. Through the welding method disclosed by the invention, the problems of difficult operation, low production efficiency, low welding seam quality, great structural deformation and the like caused by magnetic blow in the traditional shielded metal arc welding method are effectively solved; and the welding method is convenient to operate, has high production efficiency, and realizes the forming of uniform and beautiful welding seams, small welding deformation; moreover, welding joints have good mechanical performances.

The invention discloses a semi-active variable-stiffness energy dissipation and seismic mitigation control anchor bolt. The anchor bolt consists of a controller (1), a communicating line (2), a sensor (3), a variable-stiffness control device (12), a sleeve (20), a hollow anchor pipe (5), an anchor gear (10), an anchoring spring (11) and a support structure (4), wherein the variable-stiffness control device (12) consists of a hydraulic cylinder (13), a dual-striking piston (14), oil (16), a bypass pipeline (17), an electro-hydraulic servo valve (18), a stiffness spring (19a), a stiffness spring (19b), and a support box (21) and a base plate (22) connected through a bolt (23). According to the semi-active variable-stiffness energy dissipation and seismic mitigation control anchor bolt, the unrecoverable problems of excessive deformation of an anchoring and shotcreting support structure, unavailable self-adjustment of the support structure, even damages and the like caused by seismic actions are solved, and the seismic resistance of the anchoring and shotcreting support structure and the safety stability of a support body are improved.

The invention discloses an analysis method for determining longitudinal bending rigidity of a shield tunnel. The method is suitable for analyzing longitudinal bending rigidity of a tunnel structure in different design conditions. The method has wide application prospects in the field of shield tunnel construction, especially city track construction. According to the method, the problem of difficulty in comprehensive consideration of influences of various factors such as a splicing mode, transverse rigidity, a bolt effect and the like of the shield tunnel in existing calculation analysis is avoided, an actual shield longitudinal rigidity law is obtained, and a simple, convenient and reliable determination thought is provided for the value-taking problem of the rigidity of the shield tunnel in a theoretical analysis method or a numerical simulation method for the shield tunnel. The analysis method takes an actual tunnel as an analysis object and performs analysis based on structural deformation monitoring data of an existing undercrossing interval tunnel, so that the actual condition of the tunnel is reflected objectively. Moreover, the method is relatively low in actual investment, convenient and fast. The analysis method is suitable for analysis without influences of formation conditions, tunnel diameters, duct piece sizes and connection modes, thereby being high in adaptability.