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257results about How to "Optimize structure" patented technology

Vibrating mirror type laser scanning large-format material forming processing control system

The invention discloses a vibrating mirror type laser scanning large-format material forming processing control system, including an upper computer, a laser scanning master controller and a plurality of laser scanning slave controllers. The laser scanning master controller and the plurality of laser scanning slave controllers are connected based on an EtherCAT bus redundancy loop type topological structure, the laser scanning master controller serves as an EtherCAT communication master station, and the plurality of laser scanning slave controllers serve as EtherCAT communication slave stations. The upper computer performs two-way communication with the laser scanning master controller through the bus, and the laser scanning slave controllers analyze laser scanning master controller instructions, provides/collects various signals, controls a bottom layer unit, and realizes scanning processing of focusing light spots on a large-format material forming processing surface. The vibrating mirror type laser scanning large-format material forming processing control system provided by the invention can effectively solve the problems of rigid configuration and low real-time performance of vibrating mirror type laser scanning large-format material forming processing equipment, and has the advantages of good compatibility, high stability, fast communication speed, flexible configuration, strong real-time performance and the like.
Owner:HUAZHONG UNIV OF SCI & TECH

Independent primary air system provided with heat pipe exchanger and working method thereof

The invention provides an independent primary air system provided with a heat pipe exchanger. The independent primary air system is characterized by comprising a precooling unit, a cooling dehumidification unit, a reheating unit and an air supply unit. The precooling unit, the cooling dehumidification unit, the reheating unit and the air supply unit are sequentially arranged between an inlet and an outlet of the primary air system; the air supply system is arranged on the outlet of the primary air system. Primary air is precooled through an evaporator side of the heat pipe exchanger; the preprocessed primary air is cooled again through the cooling dehumidification unit; the primary air is bent through an air pipe and then heated again through a condenser side of the heat pipe exchanger; the processed air is sent indoors through the air supply unit, and indoor temperature and humidity are controlled to be 26 DEG C +/-0.5 DEG C and 50%+/-1%. The heat pipe exchanger of the independent primary air system achieves heat recovery in the precooling unit and the reheating unit, heat exchange efficiency is high, extra energy loss is avoided, and discharged heat can be recovered to the maximum; indoor air quality is improved; finally an air-conditioning system can save energy by 6%-9%.
Owner:TIANJIN SINO GERMAN VOCATIONAL TECHN COLLEGE +2

Doping type spinel lithium manganate electrode material and preparation method thereof

The invention discloses a doping type spinel lithium manganate electrode material and a preparation method of the doping type spinel lithium manganate electrode material, wherein the molecular formula of the doping type spinel lithium manganate electrode material is LiMn2-x-yMxNyO4; and in the formula, M and N are doping elements and selected from any two of Al, Mg, Cr and Co, and x+y is greater than 0 and less than 0.6. According to the doping type spinel lithium manganate electrode material, two metal elements M and N are used as epiphase dopants for remarkably improving the structure of pure lithium manganate, so that the proportion of trivalent Mn is further reduced, the stability of the structure is increased and the Jahn-Teller effect is restricted, and at the same time, the metal elements M and N are capable of restricting the dissolution of the Mn on the surface of the lithium manganate, so that the cycle performance and the high/low-temperature performance of the lithium manganate are improved; and at the same time, the epiphase doping has the effect of decreasing the doping amount under the condition with same doping effect, so that benefit is brought to reduce the material cost. The spinel lithium manganate electrode material provided by the invention is characterized by being suitable for the high-power lithium cells of electric tools and electric vehicles.
Owner:焦作伴侣纳米材料工程有限公司

Novel multi-float-bowl offshore wind turbine floating foundation

The invention discloses a novel multi-float-bowl offshore wind turbine floating foundation. The novel multi-float-bowl offshore wind turbine floating foundation comprises a center float bowl, circumferential float bowls, supporting parts, a truss part, a heave plate, a center soft cabin, a mooring system and an anchorage foundation. The truss part is arranged on the bottom of the center float bowl, the heave plate is arranged on the truss part, the center soft cabin is arranged on the bottom of the truss part, the circumferential floating bowls are connected above the center float bowl throughthe supporting parts, the anchorage foundation is arranged below the center float bowl slantly, the side face of the center float bowl is connected with the anchorage foundation through the mooring system, the center float bowl is arranged on the bottom of a fan tower, and a fan is arranged on the top of the fan tower. The floating foundation has the beneficial effects that the novel multi-float-bowl offshore wind turbine floating foundation suitable for deepwater wind power development is provided, the structure is optimized, the structure weight is reduced, the motion property is improved,and the resistivity of the floating type fan foundation to stormy wave flow loads on the complex sea can be improved.
Owner:SHANGHAI JIAO TONG UNIV

Energy absorption box for vehicle

The invention relates to the technical field of vehicle collision safety and discloses an energy absorption box for a vehicle. The energy absorption box for the vehicle comprises a plurality of hollow shells nested jointly. Every two adjacent hollow shells are connected through energy absorption ribs so that an integral structure or a split structure can be achieved. The energy absorption ribs are provided with first deformation inducing slots which are formed by extending in the radial direction of the hollow shells. The energy absorption box for the vehicle is provided with the multiple nested hollow shells, every two adjacent hollow shells are connected together through the energy absorption ribs, the energy absorption ribs are provided with the first deformation inducing slots, and when a collision happens, the first deformation inducing slots guide collapse deformation of the hollow shells and the energy absorption ribs, so that energy is absorbed. By means of the energy absorption box for the vehicle, the problems that an energy absorption box is low in strength and energy absorption efficiency and is bent under crush are solved effectively, and the safety is improved in case of a head-on collision of the vehicle. Meanwhile, the structural optimizing of the energy absorption box is achieved, the length of the energy absorption box is reduced, the layout space of cabin components and the riding space of passengers are expanded, and good economic benefits and social benefits are achieved.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD

Gravity type heat pipe and direct evaporation cooler compound evaporating and cooling water chilling unit

InactiveCN102305445AOptimize structureIncrease the degree of pre-coolingEnergy recovery in ventilation and heatingIndirect heat exchangersEvaporative coolerChiller
The invention discloses a gravity type heat pipe and direct evaporation cooler compound evaporating and cooling water chilling unit which comprises a direct evaporation cooler, wherein the direct evaporation cooler consists of a filling, a water tank arranged on the lower part of the filling and a water spraying device arranged on the upper part of the filling; the water tank is connected with the sensible heat tail end outside the unit through a pipeline; the sensible heat tail end is connected with the water spraying device through a pipeline; the upper part of the water tank and the left side and the right side of the filling are provided with tubular heat exchange devices with the same structure respectively; air inlets are formed on the side walls, corresponding to the lower parts ofthe two tubular heat exchange devices, of a housing of the unit; and air outlets are formed on the side walls, corresponding to the upper parts of the two tubular heat exchange devices, of the housing of the unit. Due to the structure, the evaporating and cooling water chilling unit is optimized further, so the heat exchange efficiency for spray water and wet air is improved and self-made refrigerating effect is used fully.
Owner:XI'AN POLYTECHNIC UNIVERSITY

Slide valve air valve type gasoline engine with opposed pistons

The invention discloses a slide valve air valve type gasoline engine with opposed pistons. The slide valve air valve type gasoline engine comprises a cylinder sleeve, an opposed crankshaft connectingrod mechanism and a slide valve air valve type gas distributing mechanism. An air inlet and an exhaust port are formed in the middle of the cylinder sleeve, and the air inlet and the exhaust port arecontrolled by the slide valve type gas distributing mechanism to open and close. The opposed crankshaft connecting rod mechanism is in gear transmission or in cog belt transmission, so that power confluences of crankshafts on two sides and synchronous movement of the piston on the air inlet side and the piston on the exhaust side are achieved. By adopting a four-stroke working mode, opening and closing of the air inlet and exhaust port are controlled by air inlet and exhaust side slide valve mechanisms; the opposed pistons adopt the same flat top structural design; and a sparking plug and an oil atomizer mounting hole are designed in the side wall of the cylinder sleeve in the middle of the cylinder sleeve and form an included angle of 30 degrees. The slide valve air valve type gasoline engine disclosed by the invention has the advantages that 1) a four-stroke working mode of the gasoline engine with the opposed pistons can be achieved; 2) the inflating efficiency is improved by optimizing the movement rule of the slide valve; and 3) fuel consumption rate and consumption are reduced at the same time.
Owner:ZHONGBEI UNIV

Intelligent question and answer method, knowledge base optimizing method and device and intelligent knowledge base

The invention discloses an intelligent question and answer method and device, a knowledge base optimizing method and device and an intelligent knowledge base. The intelligent question and answer method comprises the steps that a knowledge base is provided, wherein the knowledge base comprises a plurality of knowledge points, each knowledge point comprises an answer and one or more questions, semantic expressions are adopted for at least part of the questions, and the semantic expressions comprise parts of speeches; input information of a user is obtained; semantic similarity calculation is carried out on the input information and the questions in the knowledge points, and when the maximum semantic similarity value obtained through calculation is larger than a preset threshold value, the answer in the knowledge point corresponding to the maximum semantic similarity value is sent to the user, wherein the knowledge base comprises fuzzy knowledge points, in the calculation process of semantic similarity, the semantic similarity of the fuzzy knowledge points and the input information is calculated only when the maximum semantic similarity value of the knowledge points except the fuzzy knowledge points and the input information is smaller than the preset threshold value, and answers in the fuzzy knowledge points are sent to the user when the semantic similarity of the fuzzy knowledge points and the input information is larger than the preset threshold value.
Owner:SHANGHAI XIAOI ROBOT TECH CO LTD
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