53results about How to "Promote structural optimization" patented technology

The invention discloses a power supply reliability evaluation method and system. The influences of a power distribution network grid structure on reliability indexes are classified into three categories, namely, links, connections, and mutual influences. Existing reliability evaluation algorithms cannot perform quantitative analysis on the influences on the reliability indexes from the three aspects. The evaluation method of the present invention includes steps of matrix construction, model establishment and index calculation. The matrix construction aims to generate a topology matrix of a power distribution network grid structure; according to the model establishment, a calculation model of the reliability indexes is built through using the topology matrix; and according to an index calculation unit, the calculation model of the reliability indexes is adopted to calculate the reliability indexes, and the influences of the links, connections, and mutual influences on the reliability indexes are expressed in a quantified manner. With the method and system of the invention adopted, the quantitative indexes of power distribution network user reliability analysis and system reliabilityanalysis are realized, and the influences of the links, connections, and mutual influences on the reliability indexes are reflected.

The invention relates to the field of plastic bag manufacturing, in particular to a plastic bag sealing strip installation equipment, which includes a material supply roll, a drive roller set, a glue coating device, a cutting device, a conveyor belt, a collection box and a frame, and the material supply roll is located at At the far right end of the frame, the material supply roll is used to supply the plastic film and sealing strip to be processed, and the drive roller group is located on the left side of the material supply roll; between the drive roller sets, there is a coating for bonding the seal strip and the plastic bag. glue device; the cutting device is located above the conveyor belt, and the cutting device includes a cutter, a fixed frame, a connecting rod mechanism and a drive motor; the fixed frame is fixed on the frame, and a chute is arranged on the fixed frame; Both sides are located in the chute. The present invention adopts the method of assembly line, can realize the rapid installation of the plastic bag sealing strip, has better equipment structure optimization, and lower cost.

The invention relates to equipment for carrying wafers during the manufacturing of semiconductors, particularly to a compact type wafer lifting mechanism for lifting the wafers when the wafers are taken by mechanical hands. The compact type wafer lifting mechanism comprises a base, a swinging air cylinder, a swinging rod, a connecting rod and a wafer holder carrying the wafers, wherein the swinging air cylinder is mounted on the base, one end of the swinging rod is connected with a rotating shaft of the swinging air cylinder, the other end of the swinging rod is connected with the wafer holder through the connecting rod, the swinging air cylinder drives the swinging rod to swing, and drives the connecting rod through the swinging rod so as to drive the wafer frame carrying the wafers to ascend and descend. According to the invention, the swinging air cylinder drives the swinging rod to rotate so as to drive the wafer holder and the wafers to ascend and descend through the connecting rod. Under the situation of the same wafer lifting distance, compared with the conventional wafer lifting mechanism driven by a straight-rod air cylinder, the compact type wafer lifting mechanism disclosed by the invention has the advantages that the structural size is relatively smaller in the wafer moving direction, the space occupied by the mechanism in the wafer moving direction can be saved, and the mechanism disclosed by the invention is beneficial to structural optimization.

The invention discloses a mold for auto parts processing, which includes a male mold and a female mold corresponding to the male mold; One port; the upper cavity is provided with a first forming plate and a second forming plate; the lower end of the first forming plate is fixedly connected with a first connecting rod, and a push rod is arranged to move up and down in the first connecting rod; the second forming plate The lower end is fixedly connected with the second connecting rod; it also includes the first driving device for controlling the up and down movement of the first connecting rod, and the second driving device for controlling the up and down movement of the second connecting rod, and controls the ejector rod to move in the opposite direction with the movement of the second connecting rod linkage device. In the present invention, the demoulding is divided into two stages, which can effectively avoid the breakage of the finished product during demoulding and improve the success rate of demoulding.

The present disclosure relates to a light guide structure, an indicator light structure, and an electronic device. The light entrance surface at one end of the light guide structure faces a preset light source, so that light emitted by the preset light source can enter through the light entrance surface. The light guide structure; the light guide structure can transmit the light to the light exit surface at the other end of the light guide structure to form the light emitting area of ​​the indicator light structure; wherein, the light exit surface and the entrance The direction of the line connecting the center points of the light surface is non-parallel to the incident direction of the light. Through the technical solution of the present disclosure, the restriction of the position of the light source on the position of the indicator light can be reduced, and it is helpful for both to achieve better structural optimization.

The invention relates to the technical field of SQL databases, in particular to a multi-dimensional comprehensive database SQL auditing and optimizing method and system. The system comprises a WEB front end, a service background and a database, the WEB front end comprises a work order submitting module, a work order auditing module, an optimization recording module, a standard configuration moduleand a quality visualization module. The service background comprises an API service module, a data acquisition module, an SQL management module, an auditing engine module, an optimization engine module and a task scheduling module. The database comprises an audit intermediate library module, a test database module and an online database module, the SQL audit speed, the database structure optimization speed and the SQL optimization speed can be greatly increased, the daily work pressure of database DBA is reduced, and the influence of SQL performance hidden danger on the online environment iseffectively prevented.

The invention discloses a pre-tightened parallel six-dimensionality acceleration sensor and a measuring and sensitivity analyzing method thereof. An eight-branch-chain parallel mechanism is adopted asan elastic body structure of the sensor, so that the sensor has higher rigidity and higher load bearing capacity; pre-tightening force can be applied on piezoelectric ceramic through a pre-tighteningdevice, so that after pre-tightening, the sensor can effectively avoid output signal distortion of the piezoelectric ceramic, and the sensor has higher measuring accuracy. The measuring method can realize real-time measuring of six-dimensionality acceleration by only compiling a program in a computer in advance. By the sensitivity analyzing method, a force coordination equation is established bydigging an inherent constraint relation in a sensor parallel mechanism, statically indeterminate solving of a sensitivity model of the sensor is converted into statically determinate problem solving,then an analytical expression of sensitivity of the sensor is acquired through derivation, so that theoretical guidance is provided for structural optimization design of subsequent sensors.

A precise forming method for the solid bearing holder includes such steps as coating lubricant on the surface of blank, heating at 580-850 deg.C for 10-20 min, putting it in a die set at 560-820 deg.C, and press forming.

The invention discloses a continuous fiber 3D printing path planning method capable of achieving fiber orientation and structure parallel optimization. The method comprises the steps that a fiber orientation and composite material structure parallel optimization model is constructed, material density and a fiber angle serve as design variables, and the material density and the fiber angle are filtered to obtain a fiber orientation and composite material structure parallel optimization structure; a complex optimization structure is dispersed into a structure in a simple geometrical shape, each sub-region is abstracted into points by adopting a topology thought, the points are connected according to a position relation of an optimization structure to which the sub-regions belong, a connected graph containing optimization structure feature information is formed, and path planning classified into a Hamiltonian path for searching in the connected graph; a material density value is taken as a weight factor of the fiber angle to obtain a fiber track direction in each sub-region of the optimized structure; and printing paths of the sub-regions are connected in sequence according to a Hamiltonian path to generate a printing code. The anisotropic mechanical property of a continuous fiber reinforced composite material is exerted, and the requirement of the 3D printing process is met.

The invention discloses a forming equipment of a medium-thick-wall integral automobile drive axle shell axle arch. The forming equipment comprises a wedge pre-expanding forming mechanism, a core moldexpanding forming mechanism, a semi-closed heating furnace, an industrial robot mechanism and a transportation mechanism, the core mold expanding forming mechanism is positioned on the left side of the wedge pre-expanding forming mechanism, the core mold expanding forming mechanism is connected with the wedge pre-expanding forming mechanism through a connecting seat, the side, close to the wedge pre-expanding forming mechanism, of the core mold expanding forming mechanism is provided with the semi-closed heating furnace through a semi-closed heating furnace support, the side, close to the wedge pre-expanding forming mechanism, of the semi-closed heating furnace is provided with the industrial robot mechanism, and the transportation mechanism is arranged on the other side of the core mold expanding and forming mechanism and the other side of the wedge pre-expanding forming mechanism. The forming equipment can obviously improve the stress state of the expanding region, so that the bending transition position of the medium-thick-wall axle shell axle arch and the straight arm is better formed, and the shape and size precision of the axle arch is greatly improved.

The invention relates to a buckling-restrained brace arranged in a cross mode, a building with the buckling-restrained brace and application. The buckling-restrained brace arranged in the cross mode mainly comprises a first stress component and a second stress component. The first stress component and the second stress component are each provided with a stress main pipe. The middle section of each stress main pipe is provided with a protruding part. The inner side of the protruding part of each stress main pipe is fixedly connected with an inner restraining casing pipe, and the outer side of the protruding part of each stress main pipe is fixedly connected with an outer restraining casing pipe. The protruding parts of the two stress main pipes are fixedly connected to form an X-shaped structure. According to the buckling-restrained brace arranged in the cross mode, the building with the buckling-restrained brace and the application, the cross-sectional area and the length of the protruding parts of the stress main pipes can be adjusted, the ratio of the strength to the stiffness of the bracing components is changed conveniently, and structure optimization is achieved.

The invention discloses a force-induced responsive polymer with a single hybrid network structure. Only one cross-linked network is contained, non-dynamic covalent bond covalent cross-linking and non-covalent cross-linking are contained at the same time, the cross-linking degree of the non-dynamic covalent bond covalent cross-linking is above a gel point, and the cross-linked network contains at least two force-sensitive groups; under the action of mechanical force, the force-sensitive groups are subjected to chemical and/or physical changes, and force-induced response is achieved. The singlehybrid network structure provides good structural stability and mechanical properties for the polymer; based on the force-induced responsiveness of the force-sensitive groups, the detection, monitoring and warning effects on the stress, deformation, damage and failure processes are obtained; the non-covalent dynamics of the non-covalent cross-linking may provide self-healing performance. The force-induced responsive polymer can be applied to a stress sensing material, a self-repairing material, a tough material, a shape memory material, a toy material, a functional coating material, an intelligent sensor, a binding material, a plugging material and the like.

The invention discloses a force-induced responsive cross-linked polymer with multiple networks. The force-induced responsive cross-linked polymer comprises at least two cross-linked networks and a force-sensitive group, wherein the cross-linking degree of non-dynamic covalent bond covalent cross-linking in at least one cross-linked network is above the gel point; under the action of mechanical force, the force-sensitive group is subjected to chemical and/or physical changes, and force-induced response is achieved. The multi-network structure provides good structural stability and mechanical properties for the polymer; based on the force-induced responsiveness of the force-sensitive group, detection, monitoring and warning effects can be provided for the stress, deformation, structural damage and failure processes of the polymer. The force-induced responsive polymer contains at least two force-sensitive groups, so that rich force-responsive properties can be obtained. The force-inducedresponsive cross-linked polymer can be applied to a stress sensing material, a self-repairing material, a tough material, a shape memory material, a toy material, a functional coating material, an intelligent sensor, a binding material, a plugging material and the like.

The invention belongs to the technical field of simulation methods, and specifically relates to an interactive virtual-reality simulation method for a backwash filter. The interactive virtual-realitysimulation method comprises the following steps: S1, modeling: establishing a three-dimensional model of the backwash filter; S2, loading: loading the filter model in Unity; and S3, interactive designing and motion simulation: 1) the virtual scene of normal-flow filtration: defining the trajectory of a fluid with an iTween plugin; controlling dominance and recessiveness of an arrow indicating thetrajectory of a filtered fluid through C# script programming; and controlling the starting and stopping time of filling of a filter element with a liquid through compiling of a time controller; and 2)the virtual scene of back washing: amplifying the local effect of a filter through small map functions; defining the trajectory of a backwash fluid with the iTween plugin; controlling the movement ofa valve element and a filter element with scripts; creating backwash water and impurities; and compiling the scripts, and controlling the process of simulation with an external device. The interactive virtual-reality simulation method provided by the invention can reflect the characteristics, morphology and layout of elements in an actual scene in a realistic, vivid and accurate way.

The invention discloses a valve body wall thickness lightweight design method based on erosive wear, which comprises the following steps of: firstly, performing three-dimensional modeling according to a design file of a valve, establishing a complete valve solid model, and extracting a flow channel of the valve to establish a valve internal flow channel model; carrying out flow field calculation in the valve by utilizing computational fluid mechanics software through grid division and a numerical simulation method; through post-processing of a calculation result, achieving visualization of a flow field of the valve body, and determining a wear area and a non-wear area in the valve; and through quantitative definition of parameters of a non-wear area of the valve body, setting experimental points, and performing structural optimization on the valve body. According to the method, the redundant wall thickness of the valve body can be preferably removed, the mass of the valve body is reduced, tedious and complex theoretical calculation and experimental correction are avoided, the design process of the valve body is greatly simplified, and a new thought is provided for lightweight design of the valve body.