108 results about "Vertical shear" patented technology

The invention relates to a transverse isotropic hard formation horizontal shear wave velocity inversion method and device. The method comprises the following steps: acquiring waveform data measured by a target interval array acoustic logging dipole mode; based on the waveform data, using a weighted spectrum coherence analysis method to calculate and obtain a bending wave actual measurement frequency dispersion curve; according to the bending wave actual measurement frequency dispersion curve, calculating to obtain bending wave time difference probability density; according to the bending wave time difference probability density, calculating to obtain a stratum vertical shear wave speed; establishing an objective function of transverse isotropic stratum horizontal shear wave velocity inversion based on a frequency dispersion equation of the transverse isotropic stratum and the stratum vertical shear wave velocity; and according to the objective function, inversion is carried out to obtain the stratum horizontal shear wave velocity. According to the method, the target function of horizontal shear wave velocity inversion is reduced from two dimensions to one dimension, and the stability and efficiency of inversion are remarkably improved.

The invention relates to a method for calculating annual energy production of an offshore wind plant by considering atmospheric stability influence. The invention is applicable to the technical field of wind power generation. According to the technical scheme adopted by the invention, the method comprises the following steps: judging atmospheric stability classification corresponding to each time period; determining a basic wind condition corresponding to each time period under each atmospheric stability classification; considering the influence of a wind direction vertical shear coefficient in an environmental flow field characteristic quantity statistical value on the fan wake flow, and determining wind speed loss and additional turbulence intensity; based on the wind speed vertical shear coefficient, the inflow wind speed is determined; determining the turbulence intensity based on the turbulence intensity and the turbulence intensity vertical shear coefficient; based on the inflow wind speed and the turbulence intensity, the effective wind speed and the effective turbulence intensity of the wind turbine are determined by combining the wind speed loss and the additional turbulence intensity; determining the generating capacity of each wind turbine based on the effective wind speed of each wind turbine; based on the generating capacity of each wind turbine, the annual generating capacity representative of the year is determined.

The invention relates to the technical field of steel coil processing, in particular to longitudinal shearing and slitting equipment which is characterized by comprising an uncoiling device, a front pinch shearing machine, an upper and lower film laminating device, a first buffer pit, a side guide deviation rectifying device, a longitudinal shearing main machine, a second buffer pit, a belt tensioner, a rear pinch shearing machine, a straightening main machine and a coiling device which are sequentially arranged side by side. According to the steel coil slitting device, the accuracy of transferring the steel coil at each processing station is very high, so that the slitting accuracy can be greatly improved, and the slitting quality of the steel coil can be greatly improved; in addition, the probability of scratching or scratching in the steel coil processing process can be greatly reduced, and the steel coil processing quality can be greatly improved; and meanwhile, the longitudinal shearing and slitting equipment can also be beneficial to improving the stability and the quality of steel coil winding.

A resin-based barrier comprises a body having a skin of fiber-reinforced resin. The body includes a top, a bottom, a front end, and a back end. A vertical shear web runs between the top and the bottom and is substantially perpendicular to the top and the bottom. Moreover, spaces between the vertical webbing and between the longitudinal webbing are filled with a high-density closed-cell foam. The barrier may be used as a temporary traffic barrier during road construction.

The invention provides an in-vitro reinforced UHPC-T-shaped beam vertical shear capacity design method and system and a storage medium, and the method comprises the steps: calculating a vertical shear force component and a vertical shear bearing capacity characteristic value borne by a UHPC rib plate and a vertical shear force component and a vertical shear bearing capacity characteristic value borne by a steel web plate under a planned structural size of a composite structural beam, and calculating the vertical shear force component and the vertical shear bearing capacity characteristic value of the UHPC rib plate and the vertical shear bearing capacity characteristic value of the steel web plate; respectively judging whether vertical shear force components and vertical shear bearing capacity characteristic values of the two vertical shear force components and the vertical shear bearing capacity characteristic values meet set conditions or not, if so, carrying out next calculation, and if any one of the vertical shear force components and the vertical shear bearing capacity characteristic values does not meet the set conditions, adjusting the structure size and then recalculating; and obtaining a vertical shear capacity characteristic value controlled by the horizontal shear capacity, judging whether the characteristic value and an effect design value of the vertical shear force meet a set condition or not, if so, ending the design, and if not, adjusting the structure size and recalculating. According to the design method for the vertical shear capacity of the composite structural beam, engineering technicians can judge key mechanical properties of the structure easily.

The invention provides a steel pipe screw pile and a method for determining the bearing capacity of the steel pipe screw pile. The steel pipe screw pile comprises a pile body; the spiral pile blades are arranged in a surrounding mode in the axial direction of the pile body; the multiple overlapped blades are rotationally arranged in the radial direction of the spiral pile blade; wherein the overlaid blades contract when the pile body is screwed into soil in the forward direction, the pile body starts to rotate reversely when the pile body is screwed into the set depth, and the overlaid blades expand and are embedded into foundation soil when the pile body rotates reversely; wherein the uplift bearing capacity and the compression bearing capacity of the steel pipe screw pile are determined according to the parameter data of the steel pipe screw pile, the horizontal soil pressure of soil around the pile after the overlapped blades are unfolded and the vertical shearing force of the soil around the pile. The steel pipe screw pile can form more effective occlusion and build-in effects with foundation soil, and the compressive bearing capacity and the uplift bearing capacity of the steel pipe screw pile are remarkably improved on the premise of not remarkably increasing consumables by utilizing the bearing potential of undisturbed soil.

The invention relates to a high-sensitivity and high-durability vibration reduction and isolation support which comprises a base, a movable seat and a vertical shear energy consumption component. The vertical shear energy consumption component comprises a plurality of energy consumption rings which are vertically stacked and arranged; the energy consumption ring comprises at least one side sliding ring, each side sliding ring is provided with two inclined faces which are symmetrical up and down, and an arch is formed at the connecting position of the two inclined faces. The two slopes abut against sliding rings respectively, and rubber layers are fixed between the slopes of the sliding rings and the slopes of the side sliding rings. The vibration reduction and isolation support is used as an energy consumption damper to be used in energy dissipation and vibration reduction engineering. When the vibration reduction and isolation support is subjected to slight shock / vibration, large interaction force can be generated between the side sliding rings and the sliding rings, obvious extrusion shear deformation can be generated on the rubber layer, and therefore obvious vertical deformation can happen to the whole vibration reduction and isolation support, the vertical vibration reduction and isolation effect is generated, and the vibration reduction and isolation support is good in vibration reduction and isolation effect. And the rubber layer also can generate a considerable energy consumption effect in the extrusion shear deformation process, and has higher durability.

The utility model relates to a special shearing device for manufacturing high-transmittance and high-scattering glass in the technical field of glass production equipment, which comprises a shearing platform, a movable door-shaped frame is arranged on the shearing platform, a shearing knife is arranged on the door-shaped frame, a vertical telescopic rod is connected to the shearing knife, the vertical telescopic rod is movably arranged on the door-shaped frame, and the vertical telescopic rod is connected with the shearing knife. The moving direction of the vertical telescopic rod is perpendicular to the moving direction of the door-shaped frame. A groove is formed in the shearing platform, universal balls are fully distributed in the groove, limiting plates are arranged on the two sides of the groove and connected with horizontal telescopic rods, a through hole is formed in the portion, between every two adjacent universal balls, of the groove, a collecting box is arranged below the shearing platform, and the through holes communicate with the collecting box. The glass shearing device is reasonable in structure, capable of limiting glass, high in stability in the shearing process, capable of improving the shearing effect and efficiency, convenient to load and unload the glass, capable of reducing damage to the surface of the glass, capable of collecting and uniformly treating powder generated in the shearing process and capable of reducing dust pollution.

The utility model provides an assembly type shear wall upper and lower layer vertical connection node, which relates to the technical field of shear walls, and comprises a plurality of groups of shear wall units connected with each other, each shear wall unit comprises an inner wall plate and an outer wall plate, a transverse rib is arranged between each inner wall plate and each outer wall plate, and a connecting piece is connected between the upper and lower adjacent shear walls. The connecting piece comprises a lower baffle, a first drag hook is connected to the lower baffle, a pull rod is fixedly connected to the top of the lower baffle, a threaded section is arranged at the upper end of the pull rod, a second drag hook is connected to the upper baffle, and a nut used for tightening the distance between the upper baffle and the lower baffle is in threaded connection with the threaded section. According to the design, the connecting pieces are adopted as connecting joints between the upper shear wall unit and the lower shear wall unit, the transverse bars between the upper shear wall unit and the lower shear wall unit are tied, the connecting mode is more efficient and faster, a steel framework can be formed in the subsequent pouring process, the connecting strength between the vertical shear walls is firmer, and the shear resistance is better.

The invention belongs to the technical field of basically non-cutting machining or treatment of metal plates or pipes or bars or profiles, and particularly relates to a demolding device for a special-shaped copper bar flow guide mold and a working method of the demolding device for the special-shaped copper bar flow guide mold. A pair of demolding mechanisms are arranged on the transverse moving assembly in a penetrating mode, and the demolding mechanisms are located above the placing positions; the downward pressing assembly is connected with the transverse moving assembly; according to the demolding device for the special-shaped copper bar diversion mold and the working method of the demolding device, the rotatable demolding inclined plate is arranged, so that during initial demolding, vertical force is generated through inclination of the demolding inclined plate, then the mold generates slight displacement in the vertical direction, the binding force between the copper bar and the mold is damaged through the vertical shearing force, and the mold is convenient to separate; and after demolding, continuous generation of shearing force in the vertical direction is avoided through the perpendicularity of the demolding inclined plate, so that the mold completely moves in the horizontal direction.

The present invention discloses a longitudinal bridge joint connection structure of a steel-UHPC composite plate, wherein a steel beam is provided below the steel-UHPC composite plate, a longitudinal stiffening plate is provided at the transverse end of the steel-UHPC composite plate, and a pedestal plate is provided on the side web of the steel beam. The longitudinal bridge joint connection structure includes a cast-in-place connection portion provided between the steel-UHPC composite plate, the side web, and the pedestal plate, and a reinforcing connector extending into the cast-in-place connection portion; the reinforcing connector includes a transverse shear connector provided on the longitudinal stiffening plate and the side web, and a vertical shear connector provided on the pedestal plate. The present invention also provides a longitudinal bridge joint connection structure located between adjacent steel-UHPC composite plates. The longitudinal bridge joint connection structure of the present invention has the advantages of light weight and strong tensile strength. The bridge deck of the steel-UHPC composite plate using the longitudinal bridge joint connection structure of the present invention is expected to completely replace the traditional orthotropic steel bridge deck in the future.

The present invention discloses an energy-dissipating and pressure-relieving anchor backing plate, belonging to the technical field of geotechnical engineering reinforcement devices. The anchor backing plate device includes: an upper backing plate, a lower backing plate, and high-strength shear bolts. Both the upper backing plate and the lower backing plate are provided with vertical shear structures and bolt holes, and multiple rows of high-strength bolts can be assembled. This device has a simple structure and can be used in cooperation with conventional anchor bolts and anchor cables. The present invention can solve the problem of fracture of anchor cables (anchor bolts) caused by large deformations and has good applicability in areas such as earthquakes and rock bursts.

The present invention provides a shear key device and method for shear resistance of the disk body of an extrusion-expanded branch and plate pile, including a first shear platform, a second shear platform and a plurality of steel plate assemblies; the top surface of the first shear platform is coaxial and opposite to the top surface of the second shear platform; the steel plate assembly is a structural member with hinge points provided at both ends and in the middle, one end of the steel plate assembly is hinged to the bottom surface of the first shear platform, and the other end of the steel plate assembly is hinged to the bottom surface of the second shear platform; by arranging shear keys on the disk body of the extrusion-expanded branch and plate pile, a rigid skeleton of the disk body concrete can be formed to jointly resist the vertical shear force and avoid the shear failure of the disk body; at the same time, the improvement of the shear bearing capacity can further increase the disk ring width and disk height, improve the disk end force and the bearing capacity of the pile foundation, reduce the pile length, and achieve the purposes of safety and reliability, building material saving, cost saving, low carbon and environmental protection.

The invention relates to a sand mixing device and a sand mixing method, and belongs to the technical field of sand mixing equipment. The device comprises a barrel body assembly, a first stirring mechanism, a second stirring mechanism, an upper rolling layer, a lower rolling layer and a filtering mechanism, after crude sand and auxiliary materials enter the barrel assembly through the injection port, the first stirring shaft and the second stirring shaft rotate in opposite directions, cakes are sheared and broken through the spoilers, and turbine blades generate vortexes to strengthen mixing; materials enter the gap between the upper grinding disc and the lower grinding disc through the guide plate, are evenly ground through relative rotation between the upper grinding disc and the lower grinding disc, are prevented from layering and then flow out through the via holes in the lower grinding disc. And the second stirring mechanism spirally stirs to enhance horizontal mixing of the materials, and finally the materials fall into the filtering mechanism and are screened through reciprocating motion in the water direction. Through the synergistic effect of the vertical shearing mechanism, the horizontal mixing mechanism and the filtering mechanism, the problems that traditional equipment is uneven in mixing and low in screening efficiency are solved, and the molding sand quality is improved.

The application provides an FRP / steel composite constraint UHPC anchor plate system and a use method thereof, and solves the problem that the anchor hole of the existing anchor plate is difficult to repair after deformation, and the anchor plate is made of a whole thick steel plate, so that the weight of the anchor plate is large, the cost is high, and the transportation and assembly are laborious. The application reduces the steel material proportion of the original anchor plate structure, replaces the steel material with a large amount of FRP material and UHPC material, saves the cost, and reduces the overall weight of the anchor plate structure. Meanwhile, the composite anchor plate is assembled by using a plurality of detachable accessories, the weight of each accessory is reduced, and the transportation and assembly are facilitated. The outer layer constraint is made of steel material with better vertical shear resistance, the problem of low shear strength caused by the weak strength of the FRP material in the vertical fiber direction is avoided, the structure is more scientific and reasonable, and the deformation resistance is better.

The invention relates to the field of shear walls, in particular to a self-heat-preservation assembly type laminated shear wall structure which comprises a plurality of shear wall bodies, a vertical connecting mechanism and a transverse connecting mechanism, a plurality of pouring grooves are formed in the shear wall bodies, and the vertical connecting mechanism comprises a first square frame and a second square frame. Through cooperation of a first square frame, a second square frame and a vertical limiting assembly, when the two shear wall bodies are vertically spliced, primary self-locking between the two vertical shear wall bodies can be achieved while splicing is conducted, and through cooperation of a sliding rail, a sliding piece and a transverse limiting assembly, secondary self-locking between the two vertical shear wall bodies can be achieved; when the two shear wall bodies are vertically spliced, primary self-locking between the two shear wall bodies in the transverse direction can be achieved while splicing is conducted, and therefore the step of additionally installing supporting rods is omitted, the assembling efficiency between the two shear wall bodies can be effectively improved, and the overall construction efficiency can be effectively improved.

The utility model belongs to the technical field of bridge engineering, and particularly relates to a PBL shear key used on a segmental box girder. The PBL shear key structure is mounted at the joint of in-box web plates of two adjacent segments of box girders, and comprises a fixing plate of which the two sides are respectively connected with the in-box web plates of the two adjacent segments of box girders, and at least three positioning plates which are arranged on the fixing plate and are arranged along the splicing direction vertical to the segment box girders, and the connecting steel bars are perpendicular to the positioning plates and are used for connecting all the positioning plates. The structure at least comprises the fixing plates, the positioning plates and the connecting steel bars, so that the vertical shear stress at the splicing position of the segmental box girders can be quickly transmitted to the positioning plates through the fixing plates and dispersed, and the vertical shear resistance requirement of the splicing position of the segmental box girders is improved.

The invention discloses a bow-shaped echo associated convection early warning method. The method comprises the following steps: receiving multi-dimensional weather forecast data input; calculating vertical shear rate data grid by grid by using a central difference method; analyzing the vertical shear rate data of each horizontal grid point, and detecting a vertical shear layer conforming to a condition by adopting a sliding window method; carrying out thermal parameter coupling and verification on the screened shear rate sequence; optimal window selection is carried out aiming at a plurality of shear rate sequences which possibly appear in each grid and meet conditions, and the sequence with the maximum product is selected as final output; and drawing the flow trigger intensity of the finally output shear sequence on a forecast reflectivity image in a scattered point manner. The method is realized based on mathematical module construction and method of theoretical innovation; a shear rate distribution normality test is introduced to eliminate an abnormal disturbance layer; the convection trigger potential is quantified in a physical quantity product form; and automatic layered feature identification of the three-dimensional meteorological field is realized.

The invention discloses a pre-stressed anchor cable testing device which comprises a base, two ends of the upper side of the base are fixedly connected with gantries respectively, a beam plate is arranged between the two gantries, anchoring holes are formed in the bottom of the beam plate, simulated surrounding rock is arranged around the anchoring holes, baffles are arranged on two sides of the simulated surrounding rock, and sliding grooves are formed in the sides, close to the simulated surrounding rock, of the baffles. At least one sliding plate is slidably connected into the sliding groove, and a plurality of supporting rods are sequentially hinged to one side of the sliding plate. A reference shaft is arranged between every two adjacent supporting rods, the supporting rods are rotationally arranged on the reference shafts in a staggered mode, and limiting devices for limiting relative rotation of the supporting rods and the reference shafts are arranged in the reference shafts. Hooks are arranged at the lower ends of the sliding plates. The device has the advantages that free rotation is achieved through the multiple supporting rods and the reference shafts between the adjacent supporting rods, the larger the number of the supporting rods is, the smaller the interference to the simulated surrounding rock is, and the vertical shear test of the simulated surrounding rock is not affected.

The blade (400) includes a blade body (402) extending a blade length (404) and having a blade depth (406). The blade (400) also includes a flat portion (408) arranged at a forward face, extending a flat length (410) less than the blade length (404). The blade (400) further includes at least one angled portion (414, 416) arranged at the forward face, coupled to the flat portion (408) and positioned at an angled angle (422), wherein the at least one angled portion (414, 416) includes a cutting edge (418, 420).

The utility model discloses a connecting structure of a building added elevator steel structure box beam and an original building main body, which relates to the field of building structure engineering, and comprises a concrete beam, a steel plate is arranged on the side wall of the concrete beam, an oblong hole is formed in the inner wall of the concrete beam, equivalent screw rods are arranged on the inner wall of the concrete beam, and the equivalent screw rods are connected with the steel plate. A first nut is installed on the outer wall of the equivalent screw, an end plate is installed at the end of the box beam, a first connecting plate is installed on the outer wall of the end plate, a second connecting plate is installed on the outer wall of the steel plate, and a stainless steel bolt is installed on the inner wall of the second connecting plate. Through the arrangement of the concrete beam, the steel plate, the oblong holes, the equivalent screws and the first nuts, the flexural capacity of the concrete beam is reinforced while anchoring is met through the installed steel plate, then the concrete beam only bears vertical shearing force through the additional arrangement of the oblong holes, and generation of eccentric bending moment is effectively avoided.

The present application relates to a VTI medium shear wave anisotropy parameter estimation method based on seismic shear wave inversion. It includes obtaining seismic shear wave data and well logging data; determining shear wave anisotropy parameter well data according to the well logging data; determining VTI medium shear wave inversion initial model according to the seismic shear wave data and the shear wave anisotropy parameter well data; determining synthetic data according to the VTI medium shear wave reflection coefficient improved approximate equation; determining the objective function according to the seismic shear wave data, the synthetic data and the VTI medium shear wave inversion initial model; determining the VTI medium shear wave inversion result by using the objective function; and determining the VTI medium shear wave anisotropy parameter according to the VTI medium shear wave inversion result. The present application inverses the shear wave impedance and the horizontal shear wave velocity, and obtains the relationship between the shear wave impedance and the vertical shear wave velocity according to the well logging data, so as to estimate the shear wave anisotropy parameter, and effectively realize the seismic shear wave inversion for anisotropic medium.

The utility model discloses a bridge bracket structure which is provided with a bracket body installed on a pier column. The support sliding plate is arranged on the bracket body; a stainless steel plate is arranged on the lower end face of the main beam; the main beam, the stainless steel plate, the support sliding plate and the corbel body are limited through the limiting pins, constraint between the main beam and the corbel is reduced, and the corbel mainly bears small loads such as the vertical shear force load, the pulling force and the bending moment.

The present invention discloses a large antenna with a friction pendulum shock-absorbing structure, which belongs to the field of antenna technology. The antenna includes an upper seat plate, a shock-absorbing pendulum and a lower seat plate which are arranged in sequence from top to bottom; the bottom surface of the upper seat plate and the bottom surface of the shock-absorbing pendulum are both smooth convex surfaces, the top surface of the shock-absorbing pendulum and the top surface of the lower seat plate are both smooth concave surfaces, and the smooth concave surfaces and the smooth convex surfaces correspond to each other one by one; a shock-isolating block is also provided on the top of the lower seat plate, and the shock-isolating block and the lower seat plate are fixed by a shear pin perpendicular to the two; the shock-absorbing pendulum is located in the area formed by the shock-absorbing block, and the shock-absorbing pendulum and the shock-absorbing block are in close contact; the edge of the top of the lower seat plate is provided with a limiting wall for constraining the horizontal movement of the upper seat plate. The present invention has a shock-isolating and shock-absorbing effect on the reflector, thereby reducing the occurrence of risks and reducing the loss of damage; at the same time, it has the characteristics of low cost, high reliability, and easy installation and maintenance.

The utility model belongs to the technical field of mechanical property detection, and discloses a road crack pouring material vertical shear resistance detection clamp which comprises a main body assembly, the main body assembly is provided with a fluted disc and a test block clamp, the fluted disc can be adjusted by four degrees every time one tooth is switched, the fluted disc is connected with a universal machine through a connecting piece, and the connecting piece comprises a clamping piece and a clamping piece. A fluted disc is arranged in the clamping piece and attached to the main body fluted disc, the clamping piece and the clamping piece are connected through an M10 bolt and fix the main body assembly, and an M16 bolt is arranged on the clamping piece and connected with a universal machine. Three M10 flat head bolts with adjustable elongation are arranged in the test block clamp and are used for fixing the test block, and the elongation is adjusted through six edges at the tail part. The clamping piece and the clamping piece are fixedly connected, a connecting piece formed by the clamping piece and the clamping piece is fixed with the main body assembly through a circumferential fluted disc, and the connecting piece is fixedly connected with the universal machine. The utility model solves the problems that the crack pouring material lacks a vertical shear resistance detection clamp, multi-angle shearing is lacked, the shearing precision is not enough, the test block is not stably fixed, and the detection result is influenced.

The present invention provides a method, system and storage medium for designing the vertical shear capacity of an externally reinforced UHPC-T-beam. The method comprises: under the proposed structural dimensions of the composite structural beam, calculating the vertical shear force component and the characteristic value of the vertical shear bearing capacity borne by the UHPC rib plate, and the vertical shear force component and the characteristic value of the vertical shear bearing capacity borne by the steel web plate, respectively judging whether the vertical shear force component and the characteristic value of the vertical shear bearing capacity of the two satisfy the set conditions, if both satisfy, proceed to the next step of calculation, if any one does not satisfy, adjust the structural dimensions and recalculate; obtain the characteristic value of the vertical shear bearing capacity controlled by the horizontal shear capacity, and judge whether the characteristic value of the vertical shear bearing capacity satisfies the set conditions with the effect design value of the vertical shear force, if so, end the design, if not, adjust the structural dimensions and recalculate. The vertical shear capacity design method of the composite structural beam in the present invention helps engineering and technical personnel to judge the key mechanical properties of the structure.

The utility model discloses a foundation pit inclined strut supporting structure which comprises a fender post vertically arranged around the side wall of a foundation pit and an inclined support arranged on the inner side of the fender post, a horizontal support is arranged between the fender post and the inclined support, one end of the horizontal support is arranged on the inner side of the fender post through an enclosing purlin, and the other end of the horizontal support is connected through a horizontal cross beam. The upper end of the inclined support is connected with the lower side wall of the horizontal support, and the lower end is connected with the bottom of the foundation pit. According to the scheme, the horizontal supports, the enclosing purlins and the horizontal cross beams form the horizontal supporting frame, a stable structure is formed, the connecting strength is enhanced, and the integrity of the supporting structure is improved; the site applicability is increased, the site requirement is reduced, and construction is facilitated; the horizontal support and the inclined support are connected through the steel strand rope, and the vertical force of the inclined support is converted into the horizontal force of the horizontal support, so that the upper end of the fender post bears the horizontal force, the vertical shearing force of the upper end of the fender post is reduced, and the stress performance of the upper end of the fender post is improved.

This utility model relates to the field of optocoupler lead cutting technology, and in particular to an optocoupler de-adhesive cutting and lead-removing block. By setting a relief surface with a specific projection relationship at the bottom of the upper cavity, when the optocoupler is raised due to impurities, the inclined or arc-shaped structure of the relief surface changes the contact point between the lead pin and the lead-removing block from vertical shearing to progressive contact. The setting of the relief surface forms a physical relief space, which significantly reduces the stress concentration of the pins at the optocoupler package and greatly reduces the damage rate of the optocoupler pins. By adding a waste groove on the bottom surface of the lower cavity, metal debris generated by lead cutting can be actively collected, which to a certain extent eliminates the factor of the optocoupler being raised. Combined with the complete fit design between the bottom surface of the lower cavity and the optocoupler, it can also ensure the support capacity of the optocoupler and reduce the deformation of the optocoupler bracket during the lead cutting process. It solves the technical problem that the optocoupler pins may be cut off by the lead-removing block when the existing lead-removing block positions the components.

The present invention relates to a method for calculating the annual power generation of an offshore wind farm considering the influence of atmospheric stability, which is applicable to the technical field of wind power generation. The technical solution adopted by the present invention is as follows: determining the classification of atmospheric stability corresponding to each time period; determining the basic wind conditions corresponding to each time period under each classification of atmospheric stability; considering the influence of the wind direction vertical shear coefficient in the statistical value of the environmental flow field characteristics on the wind turbine wake, and determining the wind speed loss and additional turbulence intensity; determining the inflow wind speed based on the wind speed vertical shear coefficient; determining the turbulence intensity based on the turbulence intensity and the vertical shear coefficient of the turbulence intensity; determining the effective wind speed and effective turbulence intensity of the wind turbine based on the inflow wind speed and the turbulence intensity, in combination with the wind speed loss and additional turbulence intensity; determining the power generation of each wind turbine based on the effective wind speed of each wind turbine; and determining the annual power generation of the representative year based on the power generation of each wind turbine.

The utility model relates to a coil lead head pneumatic shearing tool, and relates to the field of coil processing technology, the coil lead head pneumatic shearing tool comprises an outer cylinder, a driving assembly, a shearing assembly and a pushing assembly, the shearing assembly comprises a rotating shaft and a shearing piece, the rotating shaft is connected to the outer cylinder, and the axis direction of the rotating shaft is perpendicular to the axis direction of the outer cylinder; the shearing part comprises two shearing handles and two shearing knives, the two shearing handles are both located in the outer cylinder, one end of each shearing handle is elastically and rotationally connected to the rotating shaft, the shearing handles incline away from the axis of the outer cylinder along the axis of the outer cylinder, one shearing knife corresponds to one shearing handle, and the shearing knives and the shearing handles are integrally arranged; the two shearing knives are used for shearing the lead head; the pushing assembly comprises a pushing part, the pushing part can slide along the axis of the outer cylinder, the driving assembly is connected with the pushing part to drive the pushing part to move, and the effect of improving the labor intensity of personnel is achieved.