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97 results about "Structural drawing" patented technology

A structural drawing, a type of Engineering drawing, is a plan or set of plans for how a building or other structure will be built. Structural drawings are generally prepared by registered professional structural engineers, and informed by architectural drawings. They are primarily concerned with the load-carrying members of a structure. They outline the size and types of materials to be used, as well as the general demands for connections. They do not address architectural details like surface finishes, partition walls, or mechanical systems. The structural drawings communicate the design of the building's structure to the building authority to review. Structural drawings are also included with a proposed building's contract documents, which guide contractors in detailing, fabricating, and installing parts of the structure.

Three-dimensional printing method and device for tissue/organ chip integrated manufacturing

ActiveCN104708821AAchieve partial curingGood for local curingAdditive manufacturing apparatusEngineeringPrinting ink
The invention relates to a three-dimensional printing method and device for tissue/organ chip integrated manufacturing. The three-dimensional printing method comprises the following steps: (1), designing the three-dimensional structural drawing of a three-dimensional chip, and converting the three-dimensional structural drawing into a slice layer graphic file format; (2), starting a three-dimensional printing device, and absorbing printing ink into all spraying heads; leading in slice layer graphic files; (3),respectively printing a main body material printing ink, a sacrificial material printing ink and different cell printing ink into pre-designed positions of a bottom plate system through the three-dimensional printing device; (4), repeating the step (3) and accomplish printing of a three-dimensional chip structure layer by layer and in an accumulating manner until the printing to a slice layer graphic file is finished; (5), heating or refrigerating the three-dimensional chip integrally printed, so as to enable a channel sacrificial material to be changed into a sol state; (6), using a pipette to absorb the channel sacrificial material in the sol state, removing the channel sacrificial material, and forming an integrated three-dimensional chip structure; (7), carrying out crosslinking on the cell printing ink material not molten, and carrying out culture medium perfusion.
Owner:TSINGHUA UNIV

Large ship superstructure hoisting method

The invention provides a large ship superstructure hoisting method which is implemented through the following steps: 1, calculating the whole weight and gravity center of the superstructure, configuring a hoisting point according to gantry crane equipment parameters and calculating the length and included angle of steel wire ropes; 2, designing a hoisting ring according the hoisting point and the whole weight; 3, carrying out reinforcement arrangement on the superstructure according to the hoisting point and stress distribution thereof; 4, establishing finite element modeling, carrying out whole strength check through finite element strength calculation, establishing a whole reinforced superstructure finite element model comprising the hoisting ring in MSC.Patran simulation software according to a structural drawing, and checking the whole and local strength through calculation; 5, reinforcing and modifying the steps 2 and 3 according to finite element calculation and strength check results, and rechecking; and 6, hoisting. Compared with the prior art, the method provided by the invention has the advantages of fully meeting technical indexes, obviously shortening the dock period at the same time, greatly relieving the defects of a ship integral assembly field and steadily improving the annual ship building quantity.
Owner:JINHAI INTELLIGENT MFG CO LTD

Automatic implementation method for high-uniformity magnet shim coil design

The invention discloses an automatic implementation method for a high-uniformity magnet shim coil design. The method comprises the following steps of: measuring the magnetic field intensity distribution within a region range by utilizing a nuclear magnetic resonance probe, and fitting the first 10-order components of the magnetic field expanded according to spherical harmonics by utilizing a least square method so as to obtain the intensity value of the shimming quantity of each order; inputting a shimming intensity numerical value, selecting an algorithm, and then storing the shimming intensity numerical value and the algorithm; assigning the stored numerical value and algorithm to a shimming code module; loading a Radia three-dimensional electromagnetic field calculation packet into the shimming code module and carrying out optimal computation on the optimization model; optimizing the calculation result, calculating shim coil shape parameters, a coil three-dimensional structural drawing and an error iteration path by virtue of a linear programming method or a particle swarm optimization based on an analytical method; and manufacturing a shim coil according to the calculated specific coil shape parameters and coil three-dimensional topological structure. The method disclosed by the invention can be used for achieving the purposes of simplicity in operation and high precision.
Owner:INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI

Installation method for integrated prefabrication of anchor platform and anchor mouth

The invention provides an installation method for integrated prefabrication of an anchor platform and an anchor mouth. The installation method for integrated prefabrication of the anchor platform and the anchor mouth comprises the following steps that firstly, the structural drawing of the anchor platform and all components of the anchor platform is drawn based on computer aided drawing, and a numerically-controlled file is generated so that a numerically-controlled forming system can be guided to machine components such as a panel, a wrist plate, an annular connecting piece, a surrounding plate and a hawse pipe; secondly, the components such as the panel, the wrist plate, the annular connecting piece, the surrounding plate and the hawse pipe are installed and welded, so that an organic integrity is formed; finally, the organic integrity is hoisted onto an outer plate, of a segmented structure, of a ship body to be positioned, welded and fixed. By the adoption of the installation method for integrated prefabrication of the anchor platform and the anchor mouth, integrated installation of the components such as the anchor platform can be achieved in a one-time mode when the ship body is re-manufactured in a segmented mode, a small number of crane sources are occupied, integrated prefabrication of the anchor platform and the anchor mouth can be achieved conveniently and rapidly, manpower and material resources are saved, and the cycle of a slipway (dock) is shortened.
Owner:GUANGZHOU WENCHONG SHIPYARD CO LTD

Mixing stirrer with paddle with airflow driven by air pressure

The invention relates to a mixing stirrer with a paddle with airflow driven by air pressure, which is structurally distinguished from other stirrers. Gas is blown from the outside by an air inlet pipe welded on a kettle body, enters a hollow stirring paddle connected to the air inlet pipe by a one-way valve and finally, is discharged by air holes on a paddle. The gas can act on fluid directly; and moreover, reverse thrust can be generated to drive the stirrer to work so as to achieve double stirring (the structural drawing is shown in the accompanying drawing of the abstract of a specification). The mixing stirrer with the paddle with the gas driven by the air pressure is designed aiming at the energy consumption, the production cost and the stirring effect in the stirring process. The mixing stirrer with the paddle with the airflow driven by the air pressure has the characteristics of making up some defects of other stirrers, simplifying the structure of equipment and lowering the manufacturing cost, so that the installation of the stirrer is diversified. The occurrence of leakage and pollution when the reactions of oxidation, hydrogenation and the like are carried out in the processes of petrochemical engineering, organic synthesis and food processing can be better avoided.
Owner:CHANGZHOU UNIV

Method for preparing porous metal foam in 3D printing mode and printing device

The invention relates to the technical field of metal foam (namely foamed metal, metal sponge and porous metal) preparation, in particular to a method for preparing the porous metal foam in a 3D printing mode and a 3D printing device. The method comprises the steps that firstly, metal powder, an adhesive and a filling agent are evenly mixed, and a raw material suitable for 3D printing is obtained; secondly, a three-dimensional structural drawing of a product is drawn, outline data is obtained, and the outline data is subjected to filling processing so as to generate a scanning path; thirdly, the 3D printing device is started for processing, and the designed product is obtained. The raw material comprises the metal powder and the adhesive, in the laying and sintering process, the adhesive is subjected to gasification or sublimation or solid solution or decomposition, and the porous metal foam different in mean pore size is obtained through the particle size of the metal powder, the type and quantity of the adhesive and the adhesive-metal powder interaction. The method has the advantages that the metal foam in any shape and size can be prepared, the processing method is simple, the cost is low, and the pore size and the porosity which can reach a nanometer level are controllable; and the method and the 3D printing method are widely suitable for various metals and alloy materials.
Owner:JIANGSU WEINA LASER APPL TECH RES INST CO LTD +1

Novel ionic liquid based complex structural well seepage electric simulation system

InactiveCN106442257AExacerbate instabilityIncreased simulation errorPermeability/surface area analysisElectrolysisElectrochemical window
The invention provides a novel ionic liquid based complex structural well seepage electric simulation system which comprises a power supply, an ampere meter, a voltmeter, a large-scale data acquisition instrument, a probe and an electrolyte tank and can simulate a three-dimensional seepage law. Ionic liquid is used to replace the traditional electrolyte for the first time, is wide in electrochemical window and larger in viscosity, and thus the influence of electrolyte electrolytic reaction on the electric field stability is eliminated basically; compared with the traditional salt solution, the ionic liquid is more sensitive to voltage change and can carry out rapid mechanical automatic measurement without losing the accuracy; the change rate of solution electrical conductivity along with voltage is improved, so that a measured delta U-I curve more approaches an ideal line, and an experiment error is greatly reduced; and the electrical conductivity of the ionic liquid is more difficult to change when influenced by temperature change. According to the technical scheme, data measurement and collection automation of a water and electric simulation experiment is realized, the experiment accuracy is improved, and the measurement time is reduced; and certain kinds of simulation structural drawings of novel complex structural wells are also given.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Method for preparing three-dimensional bismuth ferrite visible light catalytic material by using direct-write forming technology

The invention provides a method for preparing a three-dimensional bismuth ferrite visible light catalytic material by using a direct-write forming technology. The method comprises the following steps: providing and dissolving ferric nitrate, bismuth nitrate, nitric acid and potassium hydroxide into a mixed solution, and preparing bismuth ferrite nano powder through a hydrothermal synthesis method; after mixing the bismuth ferrite nano powder with an additive, adding the mixture into deionized water, and preparing bismuth ferrite mixed slurry of which the solid phase content is 40 to 80 wt percent; pre-designing a three-dimensional structural drawing through CAD (Computer Aided Design) software, converting the three-dimensional drawing into a code language capable of being recognized by a computer, putting the bismuth ferrite mixed slurry in a forming needle cylinder, enabling the forming needle cylinder to move along a path designated by the computer under the driving of a direct-write platform, extruding and forming layer by layer at the same time, periodically overlaying back and forth, and forming a mult-layer ordered three-dimensional porous structure blank; carrying out pre-sintering and sintering thermal treatment on the three-dimensional porous structure blank, thus obtaining a three-dimensional bismuth ferrite body having a visible light photocatalysis characteristic.
Owner:SHENZHEN UNIV

Movable type fertilizer distributor capable of preparing fertilizer automatically and continuously in field

The invention discloses a movable type fertilizer distributor capable of preparing fertilizer automatically and continuously in a field. The movable type fertilizer distributor is composed of a fertilizer distribution mechanism, a stirring mechanism, a fertilizer applying mechanism, a load-carrying supporting plate, walking wheels and an electronic control box, the fertilizer distribution mechanism is fixed to the upper portion of the stirring mechanism and is communicated with the stirring mechanism, the stirring mechanism is arranged on the upper portion of the load-carrying supporting plate, the fertilizer applying mechanism is fixed to the lower portion of the load-carrying supporting plate, the stirring mechanism is communicated with the fertilizer applying mechanism through a feeding mechanism, two sides of the load-carrying supporting plate are provided with the walking wheels in a matched mode, and the fertilizer distribution mechanism, the stirring mechanism, the fertilizer applying mechanism and the feeding mechanism are electrically connected with the electronic control box. According to a structural drawing of the movable type fertilizer distributor capable of preparing fertilizer automatically and continuously in the field, the structure is simple, the size is small, when the fertilizer distributor is not in use, no space is occupied, the degree of automation is high, distribution of a plurality of kinds of fertilizer can be conducted, the trouble of repeat fertilizing is avoided, the time and manpower are saved, and different fertilizing depth can be selected according to the requirements of different crops.
Owner:郑殿德

Lamp framework structure and integrated lamp island which can be combined with roof of building

The invention relates to a lamp framework structure which can be combined with the roof of a building. The lamp framework structure comprises a frame-shaped outer frame which can be connected onto the top surface of the building, wherein the outer frame comprises bar-shaped outer borders; at least one connection keel is arranged in a window space defined by the outer frame; the at least one connection keel divides the window space defined by the outer borders into at least two sub windows; the lamp framework structure further comprises side triangular keels which are arranged on the inner sides of the outer borders; the side triangular keels and the connection keels are triangular keels; and the side triangular keels and the connection keels are located on the outer borders. Furthermore, the invention also relates to an integrated lamp island applying the lamp framework structure. Therefore, users can purchase the bulked parts freely and assemble the parts into various styles of lamps according to preference by referring to the structural drawings of complete sets of products provided by enterprises. The lamp framework structure has the above characteristics and advantages, so that an unexpected technical effect is obtained, and the lamp framework structure can be applied to lamp products with island-type structures.
Owner:佛山力亮科技有限公司

Ventilation modular simulation calculation method and system for steam turbine building in power plant

The invention discloses a ventilation modular simulation calculation method and system of a steam turbine factory building in a power plant. A man-machine interaction interface is established. According to the typical shape of turbine plant and equipment, the rules of grid division are set up, and the corresponding modules are built and stored in the database. the interface between the position parameter and boundary condition parameter of turbine plant and equipment is established; The main design parameters of steam turbine plant and equipment are input and the structural parameters of plantare obtained through database. The parameters of man-machine interface are mapped to three-dimensional CAD system through interface program. the 3D CAD system is called to generate 3D structural drawing or 2D engineering drawing; commercial CFD software package is called: according to the relevant module parameters and boundary condition parameters, the parameters are modified in the command flow, the command flow drive is called to carry on the correlation analysis to the power plant, simulate and calculate the ventilation related results cloud diagram of the power plant steam turbine plantis simulated and calculated and the calculation results are displayed. The invention shortens the design period of the ventilation of the factory building and saves human and material resources.
Owner:SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP

Method for simulating electric drive control system under traction working condition of electric-wheel truck

InactiveCN101655690AAppropriate control strategySimplify complexitySimulator controlConstant powerElectric control
The invention relates to the technical field of electric control systems of electric-wheel trucks, in particular to a method for simulating an electric drive control system under a traction working condition of an electric-wheel truck. Under the traction working condition, the control system consists of a main generator constant power control part and a wheel motor excitation control part, whereinthe main generator constant power control part designs and simulates a main generator excitation current link, decides time constants of various control links and selects a structure of a current regulator, calculates parameters so as to obtain a simulation map, and analyzes the structure of a main generator to obtain a simulation map; the wheel motor excitation control part designs and simulatesa wheel motor excitation current link, decides time constants of various control links, selects the structure of the current regulator and calculates parameters so as to obtain a simulation map; thetwo parts are combined, and the dynamic structure of a wheel motor is considered, so a simulation structural drawing of the whole control system under the traction working condition is obtained; and acontrol strategy for a constant power link in the simulation structural drawing can adopt the classical PI control or fuzzy control.
Owner:ANSTEEL GRP MINING CO LTD

Automatic hot runner system structure designing device and method

The invention discloses an automatic hot runner system structure designing device and method. The automatic hot runner system structure designing device comprises an input module, a display module, a two-dimensional structure framework generating module, an automatic design information storing module and an automatic three-dimensional structure generating module. The input module is used for inputting product information, mold information and hot runner system structure information. The display module is used for displaying the positions of hot runners and technical data used by the corresponding hot runners. The two-dimensional structure framework generating module is used for generating a two-dimensional structure framework and completing two-dimensional drawing design. The automatic design information storing module is used for automatically storing the design information of a hot runner system structure in a server. The automatic three-dimensional structure generating module is used for automatically generating a two-dimensional structural drawing. The device reduces the technical requirements of hot runner designers, accelerates the information exchanger rhythm of the hot runner design and mold design, improves the overall design efficiency of the hot runner system and also has the great promoting role on later production and delivery.
Owner:DONGGUAN MOLD BEST HOT RUNNER TECH

Method for designing intelligent vibration isolation control system of flexible buoyant raft

The invention aims at providing a method for designing an intelligent vibration isolation control system of a flexible buoyant raft. The method includes the steps that firstly, the arrangement numbers and the assembling positions of sensors, stepping motors, stepping motor drivers, non-self-locking limiting switches, power sources of the non-self-locking limiting switches and motor reducer combinations are determined according to a structural drawing of the vibration isolation control system of the flexible buoyant raft; secondly, the models of the sensors, the stepping motors, the stepping motor drivers, the motor reducer combinations, the non-self-locking limiting switches and the power sources of the non-self-locking limiting switches are selected; thirdly, the sensors, the stepping motors, the stepping motor drivers, drive power sources, the motor reducer combinations, the non-self-locking limiting switches, the power sources of the non-self-locking limiting switches and a Dspace are connected with wires and installed; fourthly, a MATLAB/Simulink control algorithm is designed and related channels are arranged; and fifthly, the MATLAB/Simulink control algorithm is downloaded to Dspace hardware, and online operation and monitoring are performed. The problems that control overflow and observation overflow are likely to happen and an intelligent controller is difficult to design in the prior art are solved.
Owner:SHENYANG AEROSPACE UNIVERSITY

Construction method of assembled curved surface suspended ceiling

The invention relates to a construction method of an assembled curved surface suspended ceiling. The construction method comprises the following steps of building a BIM structure diagram and a BIM model; dividing the BIM model into a plurality of units and correspondingly making the units into curved surface plate units; importing data of the BIM structure diagram into a total station arranged ata main body structure; further, correspondingly installing a steel framework according to a lofting position, on the top of a main body structure, of the total station so as to form a suspended ceiling conversion layer; installing connecting elements onto the steel framework; making a corresponding panel framework according to the curved surface plate units; fixing the panel framework onto the curved surface plate units; suspending the curved surface plate unit to a corresponding position of the suspended ceiling conversion layer; and using the suspended ceiling conversion layer as a construction platform for fixedly connecting the panel framework to the corresponding connecting element, so that the curved surface suspended ceiling is formed on the top of the main body structure. The construction method effectively solves the problem of installation difficulty of the curved surface suspended ceiling; an assembled installing method is used for installing the curved surface plate; the construction efficiency is improved; in addition, the installing position of the curve surface plate can be precisely positioned; and the construction quality is improved.
Owner:中建八局装饰工程有限公司
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