33 results about "Centripetal force" patented technology

A placing seat is fixed to the upper portion of a base through a plurality of supporting columns in a suspended mode, a plurality of linear sliding grooves distributed in an annular array mode are formed in the placing seat, and an inner supporting piece and an outer pressing piece are installed in each linear sliding groove; a clamping push plate is connected between the multiple supporting columns in an up-down sliding and sleeving mode, a plurality of pushing pieces are installed on the clamping push plate, the pushing pieces are in sliding connection with the inner supporting piece and the outer pressing piece, and a plurality of position adjusting mechanisms distributed in an annular array are installed below the containing base in a sliding mode; a plurality of inner supporting pieces and outer pressing pieces which are distributed in an annular array mode are arranged above the containing base, two positioning rollers on the inner supporting pieces and the outer pressing pieces can synchronously move in the opposite directions from the inner side and the outer side, the inner wall and the outer wall of a workpiece are clamped at the same time, clamping force appears in pairs, radial force is offset, the workpiece mainly bears uniform centripetal force, and the deformation risk is greatly reduced.

The invention belongs to the technical field of sliding bearings and protection thereof, and discloses a metal radial elastic sheath for a ceramic sliding bearing under a high-temperature working condition, and the sheath comprises an inner sheath and an outer sheath; the inner sheath sleeves the periphery of the ceramic bushing, is a thin-wall metal sleeve, and is provided with a plurality of spiral openings in the circumferential direction, so that the inner sheath generates elastic bending when being stressed in the radial direction and disperses stress in the annular range; the outer sheath is sleeved on the periphery of the inner sheath, helical teeth are uniformly distributed on the inner circumferential surface of the outer sheath, and the helical teeth apply centripetal acting force to the inner sheath through radial elastic deformation under assembly and high-temperature working conditions. Through flexible deformation of the spiral opening of the inner sheath and radial elastic pre-tightening fit of the helical teeth of the outer sheath, fastening fit can be maintained when a thermal expansion difference exists between the metal bearing seat and the ceramic bushing, stress concentration of the ceramic bushing is reduced, and the risk of axis drift is reduced.

The invention discloses a centripetal force sensor and a using method thereof, and belongs to the field of sensors. According to the technical scheme, the centripetal force sensor comprises a fixed part and a rotating part, the rotating part comprises a sensor shell, the sensor shell is hollow, a center signal column is fixedly installed in an inner cavity of the sensor shell, a plurality of notches are formed in the outer circumferential face of the center signal column, and mass blocks are placed in the notches; piezoelectric ceramics are arranged on the outer side of the mass block, and the piezoelectric ceramics and the mass block are clamped between the inner wall of the sensor shell and the outer wall of the center signal column. The sensor is directly installed at the rotation center of a detected object, additional centrifugal force generated by the mass of the sensor approaches to zero, the authenticity of the detection result is greatly improved, meanwhile, the sensor is in direct conductive contact with the signal output structure through the center signal column, the mouthpiece does not rotate along with the detected object, and the detection accuracy is improved. The winding and pulling faults of the mouthpiece and an external pipeline are completely eradicated, and the durability of the sensor is improved.

The invention discloses a modularized middle school physical mechanics experiment measurement and control system and a centripetal force experiment method, and belongs to the technical field of middle school physical experiment teaching equipment. The measurement and control system comprises a rotation and speed measurement module and a tension measurement module which can work independently and can also be combined flexibly, the rotation and speed measurement module takes an STM32 single-chip microcomputer as a core, and accurate measurement and control of the rotation speed are realized through Hall encoder orthogonal pulse acquisition, quadruplicated frequency processing and M-method speed measurement; the tension measurement module realizes accurate acquisition of tension through a tension sensor and a 24-bit high-precision AD conversion chip. Modularization and modularization design is adopted in the core of the device, the two modules can independently adapt to various mechanical experiments and can also be integrated to build a centripetal force experiment platform, and verification of a centripetal force formula is completed through a matched experiment method. The problems that traditional experimental equipment is poor in universality and complex in operation are solved, the scheme is simplified and focused, and extremely high practicability and patent authorization are achieved.

A spinning device, such as a top, that can selectively spin about a central axis of rotation. The spinning device has a body that contains a fluid chamber that is visible through at least part of the body. A plurality of liquids are held within the fluid chamber. Some solid objects can also be mixed within the liquids. At least some of the plurality of liquids have different densities. Accordingly, when the spinning device spins about a central axis of rotation, centripetal forces are generated that cause at least some of said plurality of liquids to migrate to different distances from the central axis of rotation. At least some of the liquids are different colors and are insoluble with one another. Accordingly, the liquids produce a pattern of separate bands that can be seen through the body of the device.

The application discloses a kind of frame structure building rotation displacement method, it is related to civil construction technical field, construction circular arc-shaped displacement track in the two sides of frame column along displacement direction, the displacement track of far side from rotation center is outside track, the displacement track of near side to rotation center is inside track, support plate is respectively laid on the top surface of inside track, outside track, and several rollers are placed on the top surface of support plate along the displacement direction of building;Connecting is implanted with insert reinforcement in the two sides of frame column perpendicular to displacement direction;First, the concrete of underpinning beam perpendicular to displacement track direction is poured, then the concrete of underpinning beam parallel to displacement track direction is poured;Frame column between the bottom of underpinning beam and the top of foundation is cut off;Pushing system is set in each displacement track, and building is moved to predetermined position by pushing system.The application utilizes outside inclined displacement track to provide centripetal force to realize building frame displacement rotation, meet the demand of changing building orientation, and displacement process is stable and controllable.

The kitchen waste crushing treatment device is characterized in that upper cutting blades are arranged on the two circumferential sides of a barrel connecting piece respectively, each upper cutting blade is sequentially provided with a point position a, a point position b, a point position c and a point position d from outside to inside, and the point position d to the point position c extend in the direction away from the center of a rotating shaft body to form a section cd; the point c to the point b extend towards the center of the rotating shaft body to form a bc section, the point b to the point a extend towards the center of the rotating shaft body to form an ab section, and the cd section is provided with at least one arc-shaped cutting surface. When the movable cutter assembly rotates, centripetal force is applied to clustered or caked kitchen garbage through the arc-shaped cutting face of the upper cutting blade, and when the kitchen garbage far away from the rotating shaft body cannot be crushed, the kitchen garbage moves towards the rotating shaft body under the action of the centripetal force, so that the force arm is reduced, the cutting force is improved, and the crushing effect is improved; and the phenomenon that the cutter is stuck is avoided.

This invention provides a highly efficient automated welding structure for robots, relating to the field of welding equipment technology. It includes: a main frame structure with a slide rail at its bottom; a support and pressure application component slidably mounted on the slide rail for supporting and clamping a cylindrical workpiece from both sides and applying a centripetal force to the workpiece to cause radial contraction; a positioning support component mounted on the main frame structure, including a liftable calibration plate for insertion into the weld gap of the cylindrical workpiece before welding to calibrate and position the weld; and a welding execution component located above the positioning support component and connected to the main frame structure for automated welding of the calibrated weld after the calibration plate is withdrawn. This invention, through the mechanical alignment of the calibration plate and the centripetal pressure of the support and pressure application component, can automatically eliminate weld gaps and ensure weld alignment accuracy, thereby improving welding quality and automated operation efficiency.

The utility model relates to the technical field of fan blades, and discloses a double-blade opposite axial flow fan blade and an air supply device using the same, the double-blade opposite axial flow fan blade comprises a hub and a plurality of blade groups annularly and uniformly distributed on the peripheral surface of the hub, each blade group comprises a front bent blade and a rear bent blade, and the front bent blades and the rear bent blades are respectively and obliquely arranged relative to the axis of the hub. By means of the front bent blades and the rear bent blades which are alternately arranged, the centripetal force of the front bent blades and the centrifugal force of the rear bent blades can be integrated by means of the opposite bending directions of the front bent blades and the rear bent blades; therefore, the problems of noise and energy loss caused by airflow path extension due to centripetal airflow gathering caused by unidirectional forward bending inertia force and centrifugal airflow dispersion caused by unidirectional backward bending are solved.

The utility model discloses a powerful turbofan and a propulsion mechanism, and relates to the technical field of power propulsion, the powerful turbofan comprises a rotor part and a stator part which can rotate relatively, the stator part is sleeved outside the rotor part, and the rotor part comprises an inner ring and a plurality of permanent magnet rotors arranged around the inner ring. The stator component comprises a plurality of coil stators arranged on the periphery of the permanent magnet rotor, fan blades are connected to the inner wall of the inner ring, and the stator component is connected with the rotor component through a bearing. The motor has the beneficial effects that a central motor is changed into the peripheral motor, centrifugal force of the motor for driving the fan blades is completely eliminated, centripetal force is generated, all the fan blades and the rotor part are integrally arranged, the technical problem that the fan blades shake due to the centrifugal force when the motor rotates at a high speed in the prior art is solved, the energy efficiency is remarkably improved, and noise is reduced; the flow speed of fluid is increased through the airflow gathering part, the fluid area is increased through the airflow diffusion part, and therefore the fluid propelling efficiency of the fan blades is improved.

The invention discloses an electric tool capable of supplementing oil, the electric tool capable of supplementing oil comprises a tool shell, an impact mechanism, a transmission mechanism and an oil supplementing mechanism, the transmission mechanism comprises an intermediate shaft, a swing rod bearing and a clutch set, and the intermediate shaft comprises a shaft body and a belt rotating part; the oil supplementing mechanism is provided with at least one drainage channel, at least one inlet and at least one outlet, the portion, participating in forming of each drainage channel, of the oil supplementing mechanism forms an arc wall, and the arc wall bends and extends in the outward direction of the rotating center of the oil supplementing mechanism in the mode that the tangent line tangent to the arc wall is arranged outside the drainage channel. The oil supplementing mechanism rotates to drive gas in the tool shell and arranged on the periphery of the oil supplementing mechanism to flow, and centripetal force is formed under the guiding effect of the arc wall to guide grease to be guided into the drainage channel through the inlet and then discharged to the side wall of the shaft body through the outlet. Grease permeates into a gap between the swing rod bearing and the shaft body along the side wall of the shaft body.

The application discloses a wind turbine variable pitch gear ring collision control method, device, equipment and readable storage medium. The method comprises the following steps: judging whether the variable pitch bearing gear ring and the variable pitch pinion of the wind turbine collide; if the collision occurs, judging whether the wind turbine is in a power generation state; if the wind turbine is in the power generation state, increasing the rotating speed of the wind wheel; and if the wind turbine is in a non-power generation state, collecting the blades to an angle greater than or equal to a preset angle. When the variable pitch bearing gear ring and the variable pitch pinion collide, if the wind turbine is in the power generation state, the rotating speed of the wind wheel is increased to increase the centripetal force of the blades, so that the variable pitch bearing gear ring is tightly attached to the tooth surface of the variable pitch pinion, thereby effectively avoiding the collision between the variable pitch bearing gear ring and the variable pitch pinion. If the wind turbine is in the non-power generation state, the blades are collected to a large angle to reduce the rotation of the wind wheel, thereby effectively reducing the collision frequency of the variable pitch bearing gear ring and the variable pitch pinion per unit time.

The utility model belongs to pressure vessel welding field, concretely is a kind of novel quick-acting door type pressure vessel welding auxiliary device, including fixed base, the fixed base is welded in the middle position of spherical cap head, and with centripetal ball bearing, center seat realizes coaxial stable connection. The center seat is connected with connecting rod by fixed bolt, the connecting rod is welded with balance adjusting seat integrally. The balance adjusting seat and length adjusting screw rod are fixed by adjusting nut, the length adjusting screw rod is welded together with automatic submerged-arc welding trolley. The utility model structure design is reasonable, by rotating center seat and connecting rod, balance adjusting seat, length adjusting screw rod connection, under the centripetal force provided by the automatic welding submerged-arc trolley fixed in the front end of length adjusting screw rod, make it carry out circumferential motion, make automatic welding submerged-arc trolley can better carry out welding to the group of the circumferential weld of spherical cap head and upper flange, compared with the welding of manual arc welding, the design improves the forming and welding speed of weld, improves work efficiency, reduces cost.

The invention belongs to the technical field of aircrafts, and particularly relates to a folding propeller with conformal propeller blades and propeller hubs, which is characterized in that the center-of-gravity position of each propeller blade is set, and the mass of each single propeller blade and the distance from the center-of-gravity of each propeller blade to the rotation center are designed; the aerodynamic force thrust and the component force in the negative direction of the normal of the centripetal force of the propeller blade are equal and opposite in direction, so that the blade deformation caused by the thrust is compensated, the center line of the propeller blade can coincide with the rotating plane, and at the moment, the propeller blade and the propeller hub form a complete integrated propeller. According to the folding propeller, the appearance and the structure of the propeller blades are designed, so that the gravity center deviates from a rotating plane and deviates towards the thrust direction by a certain distance, the axial aerodynamic force and the axial component force of centrifugal force borne by the propeller blades during rotation are balanced, the folding propeller is in a design point state during working, the efficiency of the propeller is improved, and the propeller is more stable during rotation.

The utility model discloses a cast-in-place pile pore-forming perpendicularity detection device, belongs to the technical field of building construction, and solves the problem that the perpendicularity of a cast-in-place pile is difficult to detect. The device comprises a suspended outer cage and a vertical self-balancing cage, the vertical self-balancing cage is connected to the center of the suspended outer cage, a gravity balance hammer is arranged in the vertical self-balancing cage, and a laser demarcation device is arranged on the upper surface of the gravity balance hammer; the bottom of the gravity balance weight is higher than that of the suspension outer cage. The vertical self-balancing cage is designed by applying the centripetal action theory of gravitational attraction, and the vertical self-balancing cage is provided with an X and Y bidirectional suspension mechanism, so that the laser demarcation instrument arranged in the vertical self-balancing cage can be kept in a vertical state by virtue of the self weight of the gravity balance hammer even if the suspension outer cage is skewed due to the uneven bottom of a pile hole, and the vertical self-balancing cage has the advantages of simple structure and low cost. Therefore, it is guaranteed that the laser demarcation device projects a cross perpendicular line upwards vertically all the time, and the perpendicularity deviation of the pile hole can be known according to the deviation between the intersection point position of the cross perpendicular line projected to the upper opening of the pile hole and the actual center point of the pile hole.

A rotor for an axial flux machine, where the rotor is formed of a disc shaped rotor body, a magnetic sub-assembly and an inner ring structure. The magnetic sub-assembly comprises a plurality of permanent magnets, a compression ring structure and a support ring structure. The magnetic sub-assembly is bonded to a first face of the disc shaped rotor body, and the inner ring structure bonded to a support ring structure of the magnetic sub-assembly. The compression ring structure provides a radially inward force that acts in opposition to the centripetal force exerted on the permanent magnets when the rotor is spinning. The support ring structure reacts the compressive loads of the compression ring structure, in particular when the rotor is at rest or non-operation, which is when the compressive forces on the permanent magnets are at their greatest.

The invention relates to the technical field of detection equipment, in particular to annular metal part inner and outer wall quality detection equipment which comprises a detection table, a conical seat used for bearing an annular metal part is fixedly installed in the detection table, a plurality of rectangular sliding holes are evenly formed in the surface of the conical seat in the circumferential direction, and the rectangular sliding holes are annularly distributed. According to the device, the conical seat is arranged, and the geometrical characteristic that the diameter of the conical surface continuously changes is utilized, so that the annular metal part automatically slides to a stable position along the conical surface under the action of the gravity of the annular metal part; therefore, centripetal force evenly distributed in the whole circumferential direction is formed under the condition that no extra drive or complex adjusting mechanism is needed, it is guaranteed that the circle center of the annular metal part naturally coincides with the axis of the device, and the positioning precision and axis consistency are remarkably improved.

A self-contained propulsion device is developed. The self-contained propulsion device includes at least one oscillating section comprising an axial rod connected to an arm connected to at least one counterweight, and a stabilizing component positioned within a stabilizer hole, and at least one fixed section comprising a motor and a power transmission mechanism from the motor to the axial rod. The self-contained propulsion device utilizes centripetal force to generate thrust, independent of external mediums such as air or water, etc. Compared with traditional propulsion systems, this self-contained propulsion device is suitable for aerospace, ocean engineering and ground transportation industries, providing improved stability, higher energy efficiency and sustained thrust generation. The symmetrical design of the self-contained propulsion device further enhances performance by balancing counteracting forces and amplifying net thrust, making it highly adaptable to complex environments.

In this invention, the output of the natural law of this invention is smallest at the center and largest at the tip of the blade. That is, the centrifugal force of 1 / 6 of the diameter including the central axis (12e) of the multiple tapered bush pulley V-belts (12) with low output; the centripetal force of 1 / 3 of the diameter of the circumference of the multiple V-belt drive (13) with high output on the outer circumference; and when the diameter of the centripetal force is twice the diameter of the centrifugal force, the output is proportional to the cube of the wind speed. That is, the output increases eightfold when the speed is doubled. That is, 8 times × 4 times for front-back-left-right = 32 times, and when electricity is supplied to the motor including the motor of the above V-belt drive (13), the potential momentum energy of the centripetal force in the front-back-left-right direction of the V-belt drive (13) with a large output and diameter is converted into super-maximized energy, and when the central centrifugal force tapered bush pulley V-belt (12) with a small output and diameter is concentrated, the momentum energy of the generator rotor (14b) is proportional to the square of the blade length. In actual cases, or in the operation and power generation process of the above V-belt drive, etc., the invention is characterized by a source invention for creating pure surplus energy after offsetting the amount of electricity supplied at 25% loss and 75% efficiency.

The application relates to a method and a device that allow the sequential conversion of centrifugal and centripetal forces generated by a rotating mass into mechanical work, method which involves configuring a device in which a planetary system with satellite gears carrying rotating eccentric masses is assembled inside a casing, generating an apparent separation of centrifugal and centripetal forces by creating asymmetry; the transformation of centrifugal and centripetal forces into oscillatory motion through the centrifugal and centripetal forces of an assembly of eccentric parts and the elastic oscillatory movement of the output shaft which produces an oscillating torque that can be used to generate useful mechanical work, torque that arises directly from the conversion of centrifugal and centripetal forces. The device according to the application allows for the rotation at an angular speed of eccentric weights (8a, 8b, and 8c), synchronized by belts (11), around an output shaft (4) on which a rotation-limiting element (14) is rigidly fixed which forces the eccentric weights( 8a, 8b, and 8c) to have both a rotational movement around the central shaft (4) and a revolution around their own axes, this dual motion results in a change in the distance between the eccentric weights (8a, 8b, and 8c) and the central shaft (4), movement which generates centrifugal and centripetal forces that are harnessed by the belts (11) and transmitted through the central pinions (12) to the output shaft(4).

The invention relates to the technical field of screw taps, and discloses an extrusion screw tap which comprises a blade part and a handle part, the blade part comprises a plurality of extrusion blades, each extrusion blade is provided with an extrusion edge feeding side and an extrusion edge outlet side, an intersecting line between each extrusion edge feeding side and the corresponding extrusion edge outlet side is an extrusion edge, and radial deflection exists between the extrusion edges and the rotation axis of the extrusion screw tap. The extrusion edges are arranged in a non-centripetal mode and used for dispersing the borne bending force into torque force and centripetal force. According to the screw tap, the extrusion edges which radially deflect relative to the rotation axis of the screw tap are arranged, the extrusion edges are arranged in a non-centripetal mode, the extension lines of the extrusion edges do not pass through the center of the screw tap, and during extrusion, the deflected extrusion edges can disperse the borne bending force into torque force and centripetal force, so that the torque borne by the screw tap is reduced, torsional deformation of the screw tap is relieved, and the service life of the screw tap is prolonged. The service life of the tap is prolonged.

The utility model provides an annular track centripetal force analysis experiment device comprising a track assembly which comprises a release track, an annular track and a recovery track; a small ball runs on the track assembly; the releasing mechanism comprises a sliding base, an electromagnetic assembly and a guide rod unit arranged on a releasing track, the electromagnetic assembly is arranged on the sliding base, and in the initial state, the electromagnetic assembly generates magnetic force to adsorb and fix the small ball; a driving screw rod is arranged on the guide rod unit, a driving plate arranged below the sliding base is nested on the driving screw rod, and a supporting bolt arranged on the driving screw rod is screwed in to adjust the height of the sliding base. According to the utility model, the supporting bolt is screwed on the driving screw, so that the tedious disassembly and assembly process in the height adjustment process is simplified, the preparation and disassembly and assembly work before and after an experiment is reduced, the experiment time is shortened, and the experiment progress is accelerated.

The invention belongs to the field of aerodynamics of aircrafts, and particularly relates to a cone-shaped motion test and data processing method for a projectile under static incoming flow. The method is based on a projectile cone motion test platform, firstly, static model-free and static model comparison tests are carried out, model gravity can be obtained by subtracting results, and then whether the test platform meets static measurement requirements or not is verified. Subsequently carrying out cone motion + model and reverse cone motion + model tests, subtracting the balance tangential measurement results of the two tests to obtain the tangential force component of the model except the gravity, and subtracting the gravity component from the balance normal measurement result to obtain the centripetal force component of the model; and comparing with theoretical centripetal force to verify whether the stress of the model is reasonable or not. According to the method, the problem of decomposition and extraction of different stress sources of the cone-shaped motion of the projectile is solved, the process of the cone-shaped motion test and data processing method of the projectile under static incoming flow is combed, and powerful conditions are provided for deeply carrying out stress analysis of the cone-shaped motion of the projectile.

The application provides a long-term residence method and system of an earth-pole-suspension spacecraft, and relates to the technical field of spaceflight, and comprises the following steps: S1, a graphene film sail surface is arranged for the earth-pole-suspension spacecraft, the graphene film sail surface is used for interacting with the sunlight, and a suspension centripetal force is calculated; S2, a control system is arranged, the included angle relationship between the graphene film sail surface and the sunlight is controlled according to the suspension centripetal force, the requirement of a suspension orbit is satisfied in real time, a spiral suspension orbit operation is formed, the earth revolves around the sun, one-year return is formed, and the earth-pole-suspension orbit operation of the next cycle is continued. The application can effectively improve the comprehensive detection performance and observation efficiency of the polar spacecraft.

According to the device for preventing the filtering equipment from generating the rotational flow, when filtered irrigation water enters the filtering net, the irrigation water entering the filtering net has a certain initial angle due to the action of the spoiler outside the filtering net, and the irrigation water can do circular motion along the surface of the inner wall of the filtering net; water can form rotational flow under the combined action of self weight, centripetal force, gravitational attraction and suction force of the water pump, the rotational flow can reduce the water pumping amount of the water pump and increase the suction amount of air, the water pumping efficiency of the water pump is reduced, and in severe cases, the water pump cannot pump water in time due to the fact that the water pump sucks too much air, a water pump motor is burnt out, and the service life of the water pump is prolonged. The brake component is additionally arranged in the filter screen, so that the irrigation water can be effectively prevented from forming rotational flow in the filter screen. The brake component is simple in structure, easy to machine, low in cost and capable of effectively preventing rotational flow, so that the failure rate of the water pump is reduced, the efficiency of the water pump is improved, and normal operation of an irrigation system is guaranteed.

The invention discloses an intelligent transmission device for a straddle type vehicle single-shaft bogie, and relates to the technical field of straddle type vehicle bogies, the intelligent transmission device comprises a bogie body located on a track beam, a driving assembly is arranged at the top of the bogie body, and a walking wheel assembly is connected to the middle of the driving assembly; guide assemblies are further installed at the four corners of the bottom of the bogie body correspondingly, each guide assembly comprises a first supporting part, a damping plate is arranged on one side of each first supporting part, two sets of electric push rods are installed on one side of each first supporting part, and the output ends of the two sets of electric push rods are further rotationally connected with guide wheels correspondingly. When the straddle type vehicle bogie generates centripetal force when running on a track beam at a high speed, the first supporting component can move downwards at the bottom of the bogie body under the elastic acting force of the damper, it is guaranteed that the guide wheels and the two sides of the track beam are always in a guide attaching state, and therefore the stability of high-speed running of a train is guaranteed.

This invention discloses a suspension damping mechanism, belonging to the technical field of automotive damping systems. It provides a suspension damping mechanism capable of cornering at higher speeds. The mechanism includes a mounting bracket with a mounting plate. The mounting plate is movably connected to inclined upper and lower struts. The upper ends of the upper and lower struts are close to the upper end of the mounting plate, and the lower end of the upper strut is higher than the lower end of the lower strut. The mounting plate is also rotatably connected to an active component located below the upper and lower struts. The end of the active component away from the mounting plate is rotatably connected to the lower end of the lower strut. The lower end of the lower strut is also rotatably connected to a fork arm. A cantilever is fixedly connected to the top of the mounting plate, and a passive component is disposed between the end of the cantilever and the fork arm. This invention, by placing an airbag within the active component, utilizes the active component to adjust the suspension tilt angle. When the vehicle corners at high speeds, the wheels actively tilt, and the tilted wheel hubs exert an additional horizontal force on the vehicle body as a centripetal force.

A method of separating excess resin from an object includes: additively manufacturing an object on a build platform, the object (115, 415) carrying excess resin therein and / or thereon; removing the object from the build platform; placing the object in a cradle (100, 400) and / or cradle support (155, 455), optionally wherein a surface (110, 140) of the cradle is aligned with a surface of the object (125, 145) and contacts the surface of the object when the cradle and / or cradle support is moved under centripetal force; placing the cradle and / or cradle support in a spin apparatus; centrifugally separating the excess resin from the object; and removing the cradle, cradle support, and / or object from the spin apparatus, at least a portion of the excess resin being separated from the object.

The application discloses a simple structure's annular suspension electromagnetic propulsion system and method. The system comprises a centripetal-suspension system and an acceleration system. The centripetal-suspension system comprises a centripetal-suspension field coil fixed on the ground and a rotatable load end centripetal-suspension unit. The acceleration system comprises an acceleration coil fixed on the ground and a force receiving unit. The acceleration coil and the force receiving unit are located on the axis of the load end centripetal-suspension unit, and the load end centripetal-suspension unit is connected with the force receiving unit through a connecting unit. The centripetal-suspension field coil is used for generating a centripetal-suspension magnetic field in an annular area with a certain height and width. The centripetal-suspension field is used for ensuring that the suspension force is enhanced along the vertical direction downward and is reduced upward. The current in the load end centripetal-suspension unit and the centripetal field generate a centripetal force pointing to the center of the annular area, which offsets the centrifugal force generated by the rotation of the load and accelerates together with the load. The application greatly improves the acceleration capacity of the system.

The application discloses a method and system for simulating and analyzing nuclear reactor thermal hydraulic characteristics of real sea conditions, and relates to the technical field of nuclear reactor thermal hydraulic characteristic analysis, and comprises the following steps: obtaining swing data for simulation calculation by processing the obtained real sea condition data; preparing real sea condition additional force programs of three coordinate directions by using the swing data, and loading the programs to a calculation model in the form of momentum sources; adding centripetal force, tangential force and Coriolis force as additional forces to each calculation node of the reactor simulation model to perform transient thermal hydraulic calculation, so as to obtain mass flow and test section pressure drop data; performing Fourier transform on the swing angle, mass flow and test section pressure drop data of the real sea condition respectively, obtaining the frequency spectrum of the three groups of data and performing normalization processing, and analyzing the reactor safety design margin according to the frequency spectrum. The method for simulating and analyzing nuclear reactor thermal hydraulic characteristics of real sea conditions can simulate the transient characteristics of the nuclear power device when sailing.