181 results about "Axial deformation" patented technology

The invention discloses an axial force measuring device and an axial force measuring method.The axial force measuring device is arranged in a bearing seat and located between an axial limiting structure of the bearing seat and a bearing outer ring, the axial force measuring device comprises a first force measuring ring and a second force measuring ring, and the second force measuring ring is sleeved with the first force measuring ring; in the assembled state, the stress end of the second force measuring ring and the stress end of the first force measuring ring have a preset axial dimension difference so that the first force measuring ring can bear the axial force when the axial force is smaller than a preset value. And the first force measuring ring is also used for axially deforming to be matched with the axial size of the second force measuring ring after the axial force is greater than a preset value, so that the first force measuring ring and the second force measuring ring bear the axial force together.

The invention relates to the technical field of deformation detection, in particular to a method for measuring the deformation of a rotary body part, which comprises the following steps of: arranging measuring points on a target rotary body part, and performing dotting measurement by using a three-coordinate measuring instrument to obtain dotting data which are three-dimensional coordinates; based on the dotting data, calculation is carried out, and deformation information of the target rotary body part is obtained, the calculation comprises the steps of determining a data source, normalizing coordinates, converting a coordinate form, sequencing path measuring points, compensating a measuring head, calculating a position-error function, calculating all-directional axial deformation and radial deformation, speculating all-position deformation, and performing any combination calculation in multi-coordinate system data integration. According to the invention, the deformation of the rotary part can be measured conveniently, quickly and efficiently.

The invention relates to an artificial lining cavern axial deformation compensation composite structure which comprises a surrounding rock body, a concrete lining and a steel lining sealing layer, and the surrounding rock body, the concrete lining and the steel lining sealing layer are sequentially arranged in an artificial lining cavern. The steel lining sealing layer comprises an annular steel lining and at least one corrugated steel lining, the corrugated steel lining is provided with a corrugated section and straight connecting sections, the corrugated section comprises a plurality of semicircular corrugations, the semicircular corrugations are connected end to end and are arranged in a wavy structure in the axial direction of the corrugated section, and the straight connecting sections are located on the two sides of the corrugated section in the axial direction. The straight connecting section is connected with the corrugated section and the annular steel lining. The composite structure can compensate for axial deformation caused by temperature reciprocating change in the compressed air energy storage operation process, the risk of axial buckling or tension damage of the steel lining is reduced, and therefore the long-term leakproofness and safety of the gas storage are guaranteed.

The invention discloses a steel beam digital assembly hole deviation threshold value calculation method, device and equipment, and the method comprises the steps: calculating a theoretical deformation function model between the axial deformation and bending deformation of a chord member through the length, width and height of a chord member cantilever section of a sub-girder section, the allowable stress of a splice plate, and an angle between a resultant force and a design central axis; then, finite element analysis is conducted on the sub truss sections under different applied forces, and scatter diagrams of tensile deformation and bending deformation are obtained; then the theoretical deformation function model is corrected by using a scatter diagram to obtain a splicing hole deviation threshold value line function image of steel beam digital splicing, so that the problem of inaccuracy caused by neglecting factors of splice plates in practical application in traditional digital analysis is avoided; the maximum deformation threshold value of the chord member, namely the line function image of the deviation threshold value of the splicing hole, is calculated through simulation, and accurate guidance is provided for digital girder section splicing, so that the bridge construction process is optimized, and the construction precision and efficiency are improved.

The invention discloses a rock stratum three-dimensional crustal stress measurement system and method based on a drill hole deformation principle, and belongs to the technical field of crustal stress measurement. The system comprises a computing terminal, a leading device and a strain measurement device, wherein the leading device comprises a control mechanism arranged in a shell and a leading-in mechanism arranged at the top end of the shell; the strain measuring device comprises an opening-closing type radial strain measuring mechanism and an axial strain measuring mechanism, and the opening-closing type radial strain measuring mechanism, the axial strain measuring mechanism and the leading-in mechanism are all electrically connected with the control mechanism. Meanwhile, the invention discloses a method based on the system, radial deformation and axial deformation are measured by adopting the open-close type radial strain measurement mechanism and the axial strain measurement mechanism, and the open-close type radial strain measurement mechanism and the axial strain measurement mechanism are inserted into the test holes of the rock stratum to be measured, so that the strength of the rock stratum to be measured is not limited; the method is suitable for both soft rock strata and hard rock strata, the application range is expanded, and the measurement precision is improved.

The invention discloses a concrete column axial deformation identification method and system based on a visual image, and relates to the technical field of building structure monitoring, and the method comprises the steps: collecting a continuous image sequence of a concrete column from different sides; edge detection and morphological processing are carried out on the continuous image sequence, the overall contour of the cylinder is extracted, the axial center line of the cylinder is fitted, and global axial length change features are generated; executing adjacent frame tracking identification of the local evaluation center point, and establishing a first local deformation feature; performing local deformation feature extraction of the convolutional neural network, and establishing a second local deformation feature; and hierarchical fusion is carried out, and an axial deformation identification result is established. According to the invention, the technical problems of one-sided deformation information, insufficient monitoring precision and poor reliability caused by single feature extraction of the axial deformation of the concrete column in the prior art are solved, and the technical effects of realizing multi-source feature fusion identification of the axial deformation of the concrete column and improving the precision and reliability of deformation monitoring are achieved.

The invention discloses a deformation monitoring system for a surface-layer fractured rock slope, belongs to the technical field of slope deformation monitoring, and can solve the problem that an existing deformation monitoring method is not suitable for the surface-layer fractured rock slope. The system comprises a ground embankment hole, the hole opening is located in a stable area of the surface of the slope, and the hole bottom penetrates through a deformation critical surface in the slope; the surface rock quality of the stable area meets preset conditions; the monitoring holes are distributed in different positions in the axial direction of the workable hole, hole openings penetrate through the bottom wall of the workable hole, and hole bottoms are located in different positions between the deformation critical surface and an internal fragmentation zone of the side slope and extend towards the surface of the side slope; the inclination angles alpha of at least two monitoring holes in the plurality of monitoring holes are different; the in-hole monitoring modules are arranged in the monitoring holes in a one-to-one correspondence manner; the in-hole monitoring module is used for monitoring axial deformation and / or normal deformation of the corresponding monitoring hole. The method is used for monitoring the deformation information of the surface broken rock slope.

The invention relates to the technical field of tool clamps, and discloses a flexible clamp suitable for large-diameter thin circular ring part machining and a using method.The flexible clamp comprises a flexible clamping jaw, the flexible clamping jaw comprises an assembly frame fixedly connected with a rotary table and provided with a guide rail, and the guide rail is movably connected with two supporting frames capable of moving in the radial direction; the two sets of supporting frames are each provided with a fan-shaped claw with a fan-shaped step, a clamping oil cylinder is arranged between the two sets of supporting frames, locking oil cylinders are arranged on the side walls of the supporting frames, and the locking oil cylinders stretch out to be tightly attached to the assembly frame to achieve locking of the positions of the supporting frames. According to the flexible clamp suitable for machining the large-diameter thin circular ring piece and the using method, nine sets of flexible clamping jaws are evenly distributed on a circular ring belt, clamping is conducted in the radial direction inside and outside, the stress area is increased, deformation is reduced, and the high-precision machining requirement is met; a passive automatic auxiliary supporting technology is adopted, supporting is achieved through opening and closing of the fan-shaped claws, the device adapts to high-precision machining of poor planeness or blank face positioning, and axial deformation and vibration are avoided.

The application discloses a kind of based on comprehensive process deviation's ball screw pair load distribution calculation method, mainly solve in actual comprehensive process deviation ball screw pair load distribution.It is realized step as follows: input ball screw pair parameters and process deviation value, according to ball and raceway contact deformation theory and ball center and raceway arc center coordinate geometric position relationship calculation ball and raceway axial deformation after actual contact angle, again according to ball screw pair axial force balance relationship and the contact deformation coordination relationship of adjacent ball and raceway, can list axial force balance equation and adjacent ball axial contact deformation relationship iterative equation, simultaneous solution can be based on process deviation's ball screw pair load distribution result is solved.The application perfects ball screw pair load distribution model, can directly solve considering the influence of ball diameter error, lead error, pitch diameter error, raceway arc radius error and raceway arc center offset error on load distribution result.

The invention discloses a large-size rotary cylinder and a preparation method thereof, the large-size rotary cylinder comprises an outer wall and an inner wall of a wing-shaped section cylindrical structure, two groups of corresponding ends of the outer wall and the inner wall are connected, the outer wall is provided with a fixed base joint, and the inner wall is provided with a flow guide support arm joint; a part of the area, corresponding to the joint of the fixed base, on the outer wall is a solid composite material wall, and part or all of the rest areas are of a sandwich structure formed by wrapping a foam core material with a composite material skin; a part of the inner wall corresponding to the joint of the flow guide support arms is a solid composite material wall, and part or all of the rest areas are of a sandwich structure formed by wrapping a foam core material with a composite material skin. The device is applied to the technical field of composite material barrel forming, so that the barrel has high structural strength and axial deformation resistance, other auxiliary supporting devices are not needed except that the bottom of the barrel needs to be supported by a fixed base, the occupied space is greatly saved, and the assembly difficulty is reduced.

The invention relates to the technical field of rock mechanics and underground engineering, in particular to an anchored jointed rock mass multi-field coupling creep characteristic analysis method which comprises the following steps: preparing anchored rock mass samples which are corroded by inorganic salt and contain different joint occurrences, and installing different pre-stressed anchor rods. And carrying out a graded loading creep compression experiment, and synchronously collecting axial deformation and acoustic emission signals. And drawing a creep time-history curve based on deformation data, and determining long-term strength and a creep stage by adopting a steady-state creep rate method. And calibrating the crack initiation and expansion process of the crack at each stage of creep deformation by using an acoustic emission signal. And analyzing response differences between crack development and anchoring failure under different inorganic salt components, concentrations, joint occurrence and prestressing forces, and determining the influence degree of each factor on the anchor rod support effect in each creep deformation stage. According to the method, synchronous quantitative analysis of macroscopic creep characteristics and microscopic damage evolution is realized by coupling chemical corrosion and prestress action, and the accuracy of long-term strength prediction and anchoring failure mechanism understanding is improved.

The invention relates to the technical field of planet wheel single-station forging, in particular to a planet wheel single-station forging forming method and device.The method comprises the steps that whether radial deformation of an upset blank is uniform or not is determined based on a radial deformation characterization value, and under the condition that it is determined that the radial deformation of the upset blank is not uniform, the upset blank is subjected to single-station forging forming; determining the total pressure of the adjusting punch or the descending speed of the adjusting punch based on the expansion rate; whether the axial deformation of the upset blank is uniform or not is determined based on the second axial deformation characterization value, and under the condition that it is determined that the axial deformation is not uniform, the pressure maintaining duration of the last stage is adjusted based on the axial deformation difference value, and a punched blank is obtained; optimizing a pressure regulation coefficient or a speed regulation coefficient according to the batch fluctuation value of the defect characterization parameter; the device comprises a mechanical arm, a punching mechanism, a data acquisition module and a punching control module. The machining quality of the single station of the planet gear is improved.

The invention provides a method for predicting rock permeability in an elastic-viscoelastic-viscoplastic deformation stage, and belongs to the technical field of rock permeability prediction. In order to effectively predict permeability evolution trends of rocks in different deformation stages and overcome the defects in the prior art, the invention provides a method for predicting permeability of rocks in an elastic-viscoelastic-viscoplastic deformation stage. Obtaining triaxial compressive strength data of the rock under different confining pressure level conditions; setting a creep stress level, and performing a rock sample creep-seepage experiment to obtain axial deformation data of the rock sample and gas pressure data of a gas inlet end and a gas outlet end of the sample; the axial load of the rock sample is unloaded to a hydrostatic pressure state, the confining pressure is kept unchanged, and a seepage experiment in a pressure relief deformation recovery stage is carried out; the method is applied to calculation and prediction of the rock permeability.

The utility model relates to the technical field of expansion joints, in particular to a rubber expansion joint with an axial deformation prevention structure, which comprises an expansion joint body, connecting pieces are connected to two ends of the expansion joint body, fixing flanges are fixed on side walls of the two connecting pieces, and the fixing flanges are connected with the expansion joint body. A limiting mechanism used for preventing the expansion joint from axial deformation is fixed to the outer surface of the fixing flange, and a fixing mechanism used for fixing the expansion joint is arranged in the connecting piece. The limiting mechanism comprises two sets of fixing pieces, the two sets of fixing pieces are fixed to the outer surfaces of the two fixing flanges correspondingly, and a connecting rod is connected to the interior of one set of fixing pieces. According to the expansion joint, the axial limiting effect on the expansion joint can be achieved through the arranged limiting mechanism, the connecting rod can slide in the connecting pipe through the tension spring, and therefore the expansion joint body can be elastically buffered while axial deformation is prevented.

The present invention relates to the technical field of tunnel seismic resistance, and discloses a method for calculating the seismic fortification length of a tunnel portal section. The method comprises the following steps: determining the range of the tunnel portal section; collecting and analyzing the mechanical parameters of foundation beam units in the tunnel portal section to obtain statistical analysis results and random distribution functions of the mechanical parameters; establishing a finite element model of the spatial variation distribution of the tunnel portal section by using the statistical analysis results and the random distribution functions of the mechanical parameters; introducing a tunnel lateral deformation coefficient and an axial deformation coefficient, and obtaining a displacement change of the tunnel under an earthquake based on the finite element model; performing a stress-displacement analysis on the tunnel portal section to obtain a maximum bending stress change and a maximum axial stress change of the tunnel portal, and then analyzing the obtained and determined seismic fortification length of the tunnel portal section. The present invention helps to optimize the tunnel structure design and determine the seismic fortification length of the tunnel by analyzing the stress of the foundation beam unit and the displacement change under an earthquake.

The invention provides a method for predicting the fish position of a logging cable in a vertical well, and the method comprises the steps: determining the total length of a dropped cable through the length of the cable before and after the cable is broken when a logging instrument is blocked to form a fish in a logging process; calculating the axial pressure of the cable distributed along the well depth according to the total length of the falling cable and the weight of the cable in the liquid; according to different axial pressures of the cable distributed along the well depth and bending deformation of the cable under the action of self weight, the intervals of the bending deformation of the cable in a spiral section, a sine section and a linear section are determined, and the axial deformation amounts of the cable in the spiral section, the sine section and the linear section are calculated respectively; the top well depth position of the fish is determined; through comprehensive analysis, the position of the cable falling into the well is accurately calculated for guiding construction of cable salvage operation, the cable salvage efficiency can be greatly improved, the cable salvage time is shortened, and risks existing in the cable salvage operation are reduced.

The invention belongs to the technical field of restrained braces, and particularly relates to a viscoelastic double-step all-steel buckling restrained brace which comprises an outer sleeve, two viscoelastic devices, a core plate and a limiting structure, the outer sleeve, the two viscoelastic devices and the core plate are arranged, and the two viscoelastic devices are embedded in the inner side and the outer side of the two ends of the outer sleeve respectively; the viscoelastic material can absorb and dissipate energy generated by earthquakes or wind loads through shear deformation, the vibration response of a structure body is effectively reduced, the anti-seismic performance of a building is improved, the core plate movably penetrates through the viscoelastic device and is arranged in the outer sleeve, the core plate is preliminarily restrained through the outer sleeve, and the anti-seismic performance of the building is improved. According to the limiting structure, the side plates and the multiple limiting plates are matched to limit the core plate, lateral displacement of the core plate can be limited, bending instability of the core plate in the stress process is prevented, it is ensured that the core plate is mainly subjected to axial deformation all the time, and the anti-seismic property of the viscoelastic device is fully exerted.

The invention discloses a soft clay cyclic reconsolidation characteristic test method and device, and the method mainly comprises the steps: applying an axial cyclic load, and dynamically adjusting the lateral boundary constraint condition of a sample according to an independent control logic to simulate an actual stress path; synchronously collecting axial deformation, a lateral strain field, pore water pressure and an acoustic emission signal of the sample; and then characteristic parameters are calculated in real time based on the multi-physics field data, and a test process is automatically decided according to a preset criterion. According to the soft clay cyclic reconsolidation characteristic test method and device provided by the invention, the field boundary condition can be simulated more truly, and multidimensional state monitoring and intelligent test control from macroscopic to microscopic can be realized.

The invention discloses a large-caliber reflector axial supporting structure with a temperature compensation function, and belongs to the field of optical element supporting, the large-caliber reflector axial supporting structure comprises a large-caliber reflector body, a heterogeneous material composite supporting column, a corrugated pipe compensation device and a supporting base, the heterogeneous material composite supporting column adopts an'inner-layer core column-outer-layer sleeve 'coaxial nesting structure, and the corrugated pipe compensation device is arranged on the inner-layer core column; the low-expansion core column and the high-expansion sleeve are fixed through interference fit and laser welding to form an integrated supporting unit, and complementation of the low-expansion core column and the high-expansion sleeve is achieved through material selection. Through the material combination of the low-expansion core column and the high-expansion sleeve, the overall axial deformation quantity of the supporting column is reduced, the mirror surface shape precision RMS of the reflector in a wide temperature range is smaller than or equal to lambda / 50 (lambda = 632.8 nm), and the thermal stress offset effect is remarkable; a thermal stress counteracting mechanism of the composite supporting column is combined with residual deformation compensation of the corrugated pipe, so that the supporting force fluctuation range is controlled within + / -3%, and mirror surface loosening or deformation caused by long-term use is avoided.

The invention relates to an angle-adjustable mechanical structure pipe clamp and a using method and application thereof. The angle-adjustable mechanical structure pipe clamp comprises a pipe clamp body (1), deflection sections (2) located on the left side and the right side of the pipe clamp body and jacking flanges (3) connected with the deflection sections. The deflection section (2) is connected with a spherical hinge assembly of the pipe clamp body (1) and used for adjusting the included angle between the deflection section and the axis of the pipe clamp body. The pipeline plugging device has the advantages of being reasonable in structural design, convenient to operate, stable and reliable in operation and capable of plugging leaked or damaged pipelines or pipelines with the axial deformation included angle within 170-180 degrees rapidly and conveniently, and the use requirement for pipeline repairing is met; and the device also has the advantages of high working efficiency, adaptability to water depth, reliable sealing performance and firmness, maintenance cost saving and the like, and can protect equipment property safety and environmental safety.

The utility model relates to the field of drilling equipment for soft coal seams, in particular to a sealing structure for a through cable drill rod core joint, which comprises an annular sealing groove, the annular sealing groove comprises a mounting part and a pressure relief part, a sealing piece is sleeved in the mounting part to ensure the sealing performance of the butt joint of an inner joint and an outer joint, and the pressure relief part is arranged on the adjacent side of the mounting part. The mounting part is positioned on the reverse side of the inserting direction; the pressure relief part comprises a deformation containing groove and a pressure relief groove, the deformation containing groove is axially arranged and used for containing the axial deformation of the sealing piece, the pressure relief groove is formed in the bottom face of the deformation containing groove, and the pressure relief groove structure should guarantee that when the sealing piece deforms and enters the pressure relief part, sealing failure is caused by the fact that the radial size of the position where the pressure relief groove is located is increased. In addition, an axial pre-jacking protrusion is arranged at the position, corresponding to the pressure relief portion, of the installation portion, and the sealing piece has initial elastic tension due to the arrangement of the pre-jacking protrusion.

The application provides an anchor rod deformation monitoring structure based on cable sensing and a use method, and relates to the technical field of underground engineering monitoring.The anchor rod structure comprises an anchor rod body, a coaxial cable, a joint presser, a connector and a terminal load, the coaxial cable is provided with a distributed Fabry-Perot strain sensor, the coaxial cable and the anchor rod body are mutually bonded, one end of the coaxial cable is connected with the terminal load through an SMA joint connector, the other end of the coaxial cable is connected with a vector network analyzer through an SMA joint connector after being led out from an anchor rod tray, and the joint presser is arranged on the bonding section of the coaxial cable and the anchor rod and generates a characteristic impedance discontinuity.The anchor rod can be used for monitoring and analyzing the axial deformation, bending deformation and breakage of the anchor rod, realizes real-time monitoring of the axial deformation and bending deformation of the anchor rod without affecting the reinforcement effect of the anchor rod, and has the advantages of wide application range, resistance to high-temperature and high-pressure liquid environment, small transmission loss, high spatial resolution and the like.

The invention relates to the technical field of ships, and discloses a hull deformation measuring method and device, a medium and a program product. The method comprises the following steps: acquiring a reference coordinate system attitude matrix and a deformation coordinate system attitude matrix through inertial navigation equipment arranged on a bow and stern line of a ship body, and acquiring a conversion attitude matrix according to the reference coordinate system attitude matrix and the deformation coordinate system attitude matrix; according to the conversion attitude matrix, each axial deformation quantity of the reference coordinate system corresponding to each inertial navigation equipment arrangement point is calculated, and according to each axial deformation quantity of the reference coordinate system corresponding to each inertial navigation equipment arrangement point, a coefficient matrix of a deformation quantity parameter model is calculated; and according to the coefficient matrix of the deformation quantity parameter model, calculating to obtain each axial deformation quantity of the reference coordinate system corresponding to the target position point on the bow and stern line of the ship body. According to the scheme of the embodiment, the deformation of any position of the ship body can be measured, and the accuracy of ship body deformation measurement can be improved.

The invention discloses a large-size rotary cylinder which comprises an outer wall and an inner wall of a cylindrical structure with a wing-shaped section, and two groups of corresponding ends of the outer wall and the inner wall are connected; the outer wall is defined by sequentially connecting a plurality of outer wall sections, the inner wall is defined by sequentially connecting a plurality of inner wall sections, and the outer wall sections and the inner wall sections are both of a sandwich structure formed by wrapping a foam core material with composite skin; and a first parting surface between the two outer wall sections and a second parting surface between the two inner wall sections are staggered from each other. The composite material barrel is applied to the field of composite material barrels, so that the barrel has higher structural strength and axial deformation resistance, other auxiliary supporting devices are not needed except that the bottom of the barrel needs to be supported by a fixed base, the occupied space is greatly saved, and the assembly difficulty is reduced.

The invention relates to a method for winding (100) a rotor body comprising a central portion and a plurality of branches extending radially from the central portion, the winding method (100) using an automatic winding system comprising a needle suitable for winding a conductive wire around a branch along a winding path passing through a winding notch between a first point located at a first axial end of the branch and a second point located at a second axial end of the branch, the winding method (100) comprising steps of: - assigning (110) a target position to the second point, - determining (120) an axial deformation of the branch, - correcting (130) the target position based on the axial deformation, resulting in a corrected target position, and - moving (140) the needle from the first point to the second point corresponding to the corrected target position.

This invention relates to a kind of displacement amplification self-centering friction damper. The device uses gears to convert the axial deformation into the rotation of the friction-disc, and the friction device engages in friction at the edge of the friction-disc, then the displacement can be amplified and therefore it can reduce the frictional force and prolong the service life of friction components. At the same time, through gear transmission, the friction force provided by the friction device can increase with the increase of relative displacement, then it can provide suitable energy dissipation capability under different working conditions. Additionally, the device can automatically return to its initial state by disc-spring, and also provides self-centering capability for the structure simultaneously, advantageous in reducing residual deformation of the structure under severe earthquake. Compared with existing technologies, this invention has a better energy dissipation effect and is suitable for vibration control in engineering structures.

This invention belongs to the field of drive shaft turning technology, specifically a drive shaft step turning machine tool and turning process. Addressing the issue that drive shafts generate heat and undergo axial deformation during turning, making it difficult for the tailstock to effectively handle this deformation, potentially leading to drive shaft bending and failure, the invention proposes the following solution: a turning frame with two guide rails on it, on which the same tailstock is slidably mounted; and two linear lead screws symmetrically positioned on both sides of the turning frame. This drive shaft step turning machine tool improves the turning effect. During turning, after the tailstock clamps the drive shaft, it provides a certain amount of axial movement to the tailstock, preventing bending and failure due to insufficient axial space when the drive shaft undergoes thermal axial deformation during turning, thus improving the overall performance of the device.

The present invention relates to a displacement amplification type self-resetting friction damper, which converts the axial deformation of the damper into the rotation of the friction disk through gear transmission. The friction device rubs on the edge of the friction disk, thereby realizing the amplification of displacement, so as to reduce the need for friction force and extend the service life of the friction parts. At the same time, through gear transmission, the friction force provided by the friction device can increase with the increase of relative displacement, and can provide appropriate energy dissipation capacity under different working conditions. In addition, the device can automatically return to the initial state through the disc spring, and provide a certain self-resetting ability for the structure, which is beneficial to reduce the residual deformation of the structure under large earthquakes. Compared with the prior art, the present invention has good energy dissipation effect and is suitable for vibration control of engineering structures; the structure is stable and reliable and is not affected by the environment; it saves materials and reduces the consumption of friction plates; it is easy to maintain without dismantling the entire device.

The present invention discloses a method for modifying the tooth profile of a friction plate in a liquid-viscous speed regulating clutch, comprising the following steps: step 1, radial modification of external teeth: when radial deformation occurs to the external teeth of the friction plate, tooth top modification is adopted; three coordinate points after modification are obtained by the intersection of the involute equation and the tooth top circle equation and the deformation amount, the three points are connected by a hyperbola to obtain a modification curve, and radial repair of the external teeth is performed according to the modification curve; step 2, radial modification of internal teeth: when radial deformation occurs to the internal teeth of the friction plate, a radial displacement compensation mechanism is provided to compensate for the radial deformation, and radial modification of the internal teeth of the friction plate is performed; step 3, axial modification of internal teeth: when axial deformation occurs to the internal teeth of the friction plate, a displacement correction method is adopted to increase the tooth thickness for repair. The present invention takes into account the modification of deformation of the friction plate under different working conditions, improves the tooth contact stress and extrusion stress, and solves the problem that the friction plate teeth can still transmit normally after deformation under different working conditions.

The present invention relates to a damper structure for increasing the initial rigidity of a semiconductor FAB structure and, more specifically, to a damper structure provided in a building so as to buffer impact and vibration, comprising: a guide frame body for connecting an upper structure and a lower structure of the building to each other; and a damper unit fastened to the guide frame body, and the damper structure supporting a structure comprises the guide frame body and the damper unit, and thus has improved constructability, is easily replaced and maintained, has improved efficiency since the damper unit is composed of a plurality of damper members, can effectively buffer vibration or impact due to earthquakes or external impact, and has improved resistance to shear deformation and axial deformation.