14results about How to "Accurate force" patented technology

The invention provides a novel blade tip loss correction calculation method based on a Shen blade tip loss model. The method comprises the steps that 1, parameters input by a user are read; 2, the Shen blade tip loss correction model is coupled to a wind turbine simulation tool OpenFAST; 3, calculating a general correction factor according to the parameters input by the user; 4, according to the blade tip loss correction requirement, one of the Shen blade tip loss correction model and the Prandtt model in the wind turbine simulation tool OpenFAST is selected, the stress and displacement of the blade tip position under the condition of the high blade tip speed ratio are corrected in combination with the universal correction factor, and blade tip loss correction calculation is completed. The Shen blade tip loss correction model is coupled to the OpenFAST, a new blade tip loss correction calculation method is provided, the stress and displacement of the blade tip position are calculated more accurately under the condition of the high blade tip speed ratio, and the blank of the OpenFAST in the field is filled.

The invention relates to the technical field of moored ships, and in particular to a method for calculating the load of a moored ship. The method comprises: calculating the wind load, the water flow load and the wave load received by a target ship at the last moment according to a wind load calculation formula, a water flow load calculation formula and a wave load estimation formula; measuring the mooring force at the last moment; obtaining the estimated ship force at the last moment according to the wind load, the water flow load, the wave load and the mooring force at the last moment; calculating the ship force at the last moment; judging whether the difference between the estimated ship force at the last moment and the ship force at the last moment is less than or equal to a preset error value; if not, correcting the wave load estimation formula and re-estimating the wave load; if yes, calculating the estimated ship force at the current moment; the invention proposes an accurate moored ship load calculation method, which is helpful to establish a safer and more effective ship mooring system and improve the safety and reliability of the overall operation.

The utility model provides a chew which comprises at least two meshing parts, and the at least two meshing parts are sequentially arranged in the length direction of the chew. And the occlusion part extends along the direction which forms an included angle with the length direction of the chew. The at least two occlusion parts enable different tooth areas to correspond to different occlusion parts, and acting force can be applied to the orthodontic appliance more accurately through the chews; the extension direction of the occlusion part is beneficial to guiding the axial orientation of the upper and lower jaw teeth during occlusion, and the arrangement along the length direction of the chew enables the structure of the chew to be compact.

This application provides a water purifier, including a water circuit board, a faucet, an indicator light, and a detection element disposed within a water flow channel. The detection element includes a movable component; when the movable component is in a first state, it is stationary within the water flow channel, or it is in a first position; when the movable component is in a second state, it rotates within the water flow channel, or it is in a second position; and a sensing element disposed on the board. When water flows within the water flow channel, the movable component switches from the first state to the second state, and the sensing element transmits a sensing signal to activate the indicator light; when water stops flowing within the water flow channel, the movable component switches from the second state to the first state, and the indicator light turns off. This application detects the water flow within the water circuit board through the movement state and position of the movable component, and the indicator light on the faucet displays the water purifier's usage status to the user.

The invention relates to ocean engineering, in particular to a numerical simulation method of an offshore platform pile leg, which improves the accuracy of wave surface height change description and wave behavior description by adding complex correction terms for a wave surface function and a wave velocity field. A parallel computing strategy and an optimized numerical method are introduced, so that the computing efficiency and the computing speed are effectively improved, a super computer and high-performance computing resources are utilized, the computing period is shortened, the cost is reduced, and meanwhile, the accuracy and the stability of a simulation result are ensured; and meanwhile, through refined grid division and an efficient numerical method, the space resolution and the time resolution of simulation are improved, so that the stress condition of the structure and the influence of waves are accurately predicted.

The utility model provides a manual point gum machine for display screen production relates to display screen production equipment technical field, include: point gum subassembly, point gum subassembly constitutes by point gum pipe, threaded rod and pump head, the pump head sliding connection is in the point gum pipe, threaded rod sets up at the top of pump head, the embedded installation of point gum pipe is equipped with visual glass, drive assembly constitutes by inside, outside drive disc, the layout is exquisite, the effect is remarkable, the first tooth groove of inside drive disc outside and the inside ring of outside drive disc mesh, realizes the collaborative operation of inside and outside disc, power transmission is efficient and stable, the second tooth groove of outside drive disc outside and the drive gear on fixed link mesh, supports through fixed link, drive gear can accurate drive outside drive disc rotation, this structure makes the drive flexible controllable of point gum pipe, can accurate regulation rotating speed and torque according to the operation demand, guarantees the smooth, accurate of point gum operation, has greatly promoted the working performance and product quality of point gum equipment.

The invention discloses a personalized exercise prescription recommendation system based on big data analysis. And the motion mode suitable for the user is found by adopting the information of the user. And under the condition of gravity, the pressure is downward, so that the human body is supported by two feet. And the pressure has a relationship with the posture of the human body, so that a plurality of training segmentation images can be obtained through historical user motion footprint images in the training process. And establishing a relationship between the segmented image and the pressure of the posture of the user on the footprint. Therefore, the plurality of segmented images not only can represent the motion posture of the user, but also can represent the force exertion condition of each part when the user makes the posture. And judging whether the action of the user is standard. Therefore, the exercise prescriptions that the user can make the exercise postures more smoothly and exert accurate force on each part are recommended.

The utility model belongs to the technical field of medical instruments, and particularly relates to an intervertebral foramen endoscope outer trephine which comprises a sleeve, a through hole is formed in the sleeve, five handles, twelve sawteeth and first scale marks are arranged on the sleeve, second scale marks are arranged in the through hole, and the second scale marks are arranged on the sleeve. Due to the fact that the number of the handles is five, in the axial movement process during operation, a mechanical structure can be met conveniently, a surgeon can exert force more accurately in the operation process conveniently, when the peripheries of the handles are shielded by other instruments, reasonable angle adjustment can be made to exert force properly, and the operation efficiency is improved. Through the arrangement of the scale marks I and the scale marks II, the osteotomy depth can be conveniently and visually indicated, and other tissues are prevented from being damaged due to excessive depth.

The embodiment of the present application provides a photovoltaic structure wind tunnel test method, which comprises the following steps: obtaining a plurality of groups of first pressure measurement data obtained by wind tunnel test of a photovoltaic panel model under a first working condition, the photovoltaic panel model being a rigid model made in proportion to a target photovoltaic panel structure, each group of first pressure measurement data corresponding to a different first test area of the photovoltaic panel model; determining first force data corresponding to each first test area; obtaining a plurality of groups of first force data obtained by wind tunnel test of the target photovoltaic panel structure under the first working condition, each group of first force data corresponding to a different second test area corresponding to the first test area of the target photovoltaic panel structure; determining a first sub-conversion coefficient of each first test area according to the first force data and the first force data; and determining a conversion coefficient of the photovoltaic panel model under the first working condition based on the first sub-conversion coefficient. The scheme of the embodiment of the present application can obtain a more accurate conversion coefficient, and facilitate determination of the real force of the photovoltaic structure.

The invention provides a neck muscle force application experimental device and experimental method, relates to the technical field of measurement, and aims to solve the technical problem of poor neck muscle force application measurement accuracy. The experimental device comprises a first bracket, a second bracket, a first detection part, a second detection part, a plurality of moving modules and a seat arranged between the first bracket and the second bracket, the first support is provided with a first guide rail, the second support is provided with a second guide rail, the first detection part is slidably arranged on the first guide rail through a corresponding moving module, and the second detection part is slidably arranged on the second guide rail through a corresponding moving module. The moving module comprises a base table and a sliding table arranged on the base table in a sliding mode. The base table of the moving module is arranged on the first guide rail or the second guide rail in a sliding mode. The first guide rail and the second guide rail extend in the first direction, all the sliding tables slide in the second direction, and the first direction is perpendicular to the second direction. The first detection part is arranged on the sliding table of the corresponding moving module. The experimental device is high in cervical vertebra measurement data accuracy.

This invention relates to a novel switch, comprising: a switch mechanism assembly including a switch base and a moving contact, a stationary contact, and a pressure assembly disposed within the switch base, wherein the pressure assembly can cause the moving contact to contact or separate from the stationary contact under external force; characterized in that it includes: a knob rotatably disposed above the switch base; a dial, the upper surface of which has a rotating shaft fixedly connected to the knob, and the lower surface of which has a pressure block that abuts against the pressure assembly; during the rotation of the knob, the knob can drive the dial to rotate around the axis of the rotating shaft, thereby causing the pressure block on the dial to abut against the pressure assembly, thus causing the moving contact to contact or separate from the stationary contact. This rocker switch can be turned on and off simply by rotating the knob, and the rotation of the knob allows for precise force application to accurately control the switch's on / off state, thereby improving the switch's lifespan.

The present application relates to a kind of precision guiding nest-preventing device and nest-preventing method integrated in sewing machine needle plate, the device is provided with fixed knife and movable knife on the lower surface of sewing machine large needle plate, the movable knife includes hooking part, dividing part, wire container groove and wire hole, cooperates with presser foot, blowing and suction pipe and connecting rod type driving mechanism, through the timing design of "stitching thread - guiding presser - stabilizing thread loop - cutting cleaning - resetting", realizes the precise guidance of thread end, cutting and cleaning.The device can reuse the built-in power of sewing machine, has compact structure and strong adaptability, can completely avoid the winding of starting thread, improve the quality and operation continuity of sewing product, and is suitable for all kinds of sewing machines such as lockstitch machine and pattern machine.

The utility model relates to the technical field of rehabilitation instruments, and discloses a limb rehabilitation training device with a variable stiffness function, which comprises a casing, a support frame is fixedly mounted in the casing, two pairs of bearing seats are fixedly mounted in the support frame, and rotating shafts are rotatably mounted in the bearing seats; a guide shaft support is rotationally mounted in the center of the supporting frame through a rotating seat, one end of a guide shaft is fixedly mounted in the guide shaft support, and the guide shaft is sleeved with a sliding block; the ends, away from each other, of the two rotating shafts on the upper side are each rotationally provided with one end of a swing rod, the other ends of the swing rods are fixedly provided with the same cross rod, the sliding blocks are provided with elastic pieces, and the supporting frame is provided with an adjusting assembly used for lifting the sliding blocks. The limb training rigidity of a patient can be changed, the structure is simple, work is stable, and therefore on the premise that man-machine interaction safety is guaranteed, the control accuracy of the training device can be kept accurate for a long time, and the device is more reliable in overall operation, longer in service life and better in durability.

The invention relates to the technical field of printing and dyeing rollers for textile machinery, and discloses an automatic printing and dyeing roller cleaning device for textile machinery, which comprises a protective shell, two groups of supporting legs are arranged on the inner wall of the protective shell, bearing plates are fixedly connected to the tops of the two groups of supporting legs, and the protective shell is fixedly connected with a printing and dyeing roller through a fixing shaft. The bottom of the bearing plate is fixedly connected with a storage box, the collecting mechanism comprises a fixing ring, and the bottom of the fixing ring is fixedly connected with the bearing plate. By arranging the collecting mechanism, the collecting mechanism has the advantages that the edge area of the printing and dyeing roller can be accurately focused, fabric fibers are efficiently collected, and when the fabric fibers appear on the edge of the printing and dyeing roller, the collecting device can immediately play a role to form a limiting area, so that the fabric fibers orderly move in a specific track; the trend that the fibers drift around is effectively restrained, and the printing and dyeing defect risk caused by fiber residues is reduced.