8 results about "Stabilization methods" patented technology

This invention belongs to the field of rebar bending technology, specifically a rebar bending device for rebar installation in pipe gallery engineering. It includes a workbench with a disc rotatably connected to its top. A clamping seat is fixed to one side of the top of the disc. The clamping seat has several evenly spaced placement slots, each containing a pressure plate. A driving mechanism is located within the clamping seat's inner cavity, enabling the pressure plate to slide up and down. This invention uses the driving mechanism inside the clamping seat to move the pressure plate downwards, clamping and fixing the rebar in the placement slots. This eliminates the need for operators to enter dangerous areas to manually hold the rebar; they can complete the loading and starting operations only within a safe area, fundamentally avoiding the risk of personal injury. Furthermore, the driving mechanism and pressure plate work together to effectively restrain the rebar's movement and warping during bending, solving the problem of insufficient bending angle accuracy caused by uneven force and positional deviation in traditional manual stabilization methods.

A method for controlling a mobile manipulator (1), the mobile manipulator (1) including a manipulator base (3) and at least one manipulator arm (5), the method comprising the steps of: determining a current configuration of the mobile manipulator (1), the current configuration including a manipulator arm configuration and a manipulator base configuration; determining a desired movement trajectory of the mobile manipulator (1); based on the current configuration of the mobile manipulator (1) and the desired movement trajectory, determining a current zero-movement point (ZMP) trajectory including the positioning of one or more current ZMPs of the mobile manipulator; determining a desired ZMP trajectory of the mobile manipulator (1), wherein each ZMP is located at the manipulator base. Within the supporting polygon of the base (3); the motion manipulator (1) is adjusted so that the current ZMP trajectory corresponds to the desired ZMP trajectory, wherein the step of adjusting the motion manipulator (1) includes the following steps: selecting a stabilization method from a set of stabilization methods and adjusting the motion manipulator (1) based on the selected stabilization method; determining whether the actual ZMP trajectory of the motion manipulator (1) corresponds to the desired ZMP trajectory; and when the actual ZMP trajectory of the motion manipulator (1) corresponds to the desired ZMP trajectory, the method further includes the following step: executing the motion trajectory of the motion manipulator (1).

The present invention relates to a method for stabilizing the production yield of [18F]-labelled radiotracers by adding a radical scavenger in the reaction medium of the nucleophilic [18F]-fluorination step.

The application provides a ship rudder case mounting method, which comprises the following steps: fixing a rudder line through an upper wire fixing tool support and a lower wire fixing tool support and determining the position according to assembly requirements; adjusting the position of the rudder case through hoisting equipment, so that the center line position of the rudder case coincides with the rudder line; inspecting the position of a false rudder contour line to the rudder case, so that the outer contour line of the rudder case is butt-jointed with the false rudder contour line and the outer plate line type fairing; after the data is inspected and qualified, arranging and fixing a positioning weld at the corresponding position of the rudder case and welding the positioning weld; after the positioning weld construction is completed, starting to assemble the rudder case according to the ship body assembly operation requirements, and ensuring that the coincidence degree of the center line position of the rudder case and the rudder line is maintained within a predetermined range in real time. Through the fixing of the two ends of the rudder line from top to bottom, and then the coincidence and the correction, the technical problem of lacking a stable method for aligning the center line of the rudder case is solved.

To provide a power system stabilization device and method that efficiently perform power supply limitation of a renewable energy power supply and a synchronous power generator while ensuring synchronization power in a power system including both the synchronous power generator and the renewable energy power supply.SOLUTION: A power system stabilization device 1 includes: a stability calculation unit that calculates the stability when a power system 9a including synchronous power generators 2-1 to 2-3 and a renewable energy power supply 3 break down; a contraction system model creation unit that creates a contraction system model by using one or more nodes as contraction starting point nodes to make a topology of a power system including unstable power generators in a radial shape and contracting the power system including a stable power generator at an upper level from the contraction starting point node; a P-δ curve calculation unit that extracts the synchronous power generator that steps out based on the contraction system model and calculates a P-δ curve showing a relation between a phase angle and output effective power for each synchronous power generator; and a power control device selection unit that selects a target to limit the power supply from the synchronous power generator and the renewable energy power supply based on power supply limitation effect calculated based on the P-δ curve.SELECTED DRAWING: Figure 1

The application discloses a rotating pair water film self-adaptive establishing and stabilizing method and structure, which is suitable for passive regulation of a water film of a relative rotating pair of underwater equipment. The method realizes the whole process of film establishment, film stabilization and film elimination by relying on the coupling of the geometric characteristics of the structure itself, rotating speed and water flow, and does not need external active control devices. The structure comprises a fixed fitting part and a rotating fitting part, and the fitting surface adopts an axial segmented same-taper conical surface, wherein the water outlet section is a water outlet converging conical surface, and the water inlet section is a water inlet gap conical surface, which has the functions of throttling damping and thermal expansion compensation, and is provided with an axial limiting structure to reduce reverse impact. The water outlet converging conical surface forms a dynamic pressure water film to realize non-contact support during normal rotation, and relies on viscous shear flow and boundary lubrication to avoid dry friction during reverse rotation by the axial limiting structure. The application overcomes the shortcomings of traditional directional groove structures, such as being suitable for only one-way rotation and poor low-speed performance, and has simple and reliable structure, can be compatible with a silt-resistant structure, and is suitable for various underwater rotating support devices.

This helps to suppress excessive or insufficient control after an accident occurs. [Solution] A power grid stabilization system 1 for stabilizing a power grid 4 after an accident, comprising: a pre-stabilization calculation unit 22 that performs stabilization calculations for a hypothetical accident before the accident and creates a control table summarizing power grid stabilization measures; a control change information generation unit 23 that generates control change information for changing the stabilization measures in the control table according to the estimated value of the post-accident heat capacity of the power transmission and distribution equipment of the power grid after the accident; a post-accident heat capacity calculation unit 24 that calculates the post-accident heat capacity of the power transmission and distribution equipment after the accident based on post-accident system measurement information and weather information; a control determination unit 25 that determines whether to change the stabilization measures in the control table based on control change support information and post-accident heat capacity, and changes the stabilization measures based on the control change information if the stabilization measures are to be changed; and a stabilization control unit 26 that outputs a control command based on the determination result of the control determination unit.

The application discloses a kind of underwater acoustic signal's space-time stabilization method, system and storage medium, output space-time signal energy spectrum enters wideband stabilization module, judge its output as reverberation background part input to reverberation stabilization module, judge its output as noise background part input to narrowband stabilization module, output after processing is stabilized after space-time energy chart, finally through energy detection obtains the azimuth, distance and intensity information of target.Data verification is carried out by sea trial, the application can realize space-time signal stabilization in underwater long-distance target detection, solve the interference problem of reverberation, high-power white noise and colored noise, realize the effective detection of long-distance target echo.