16results about How to "Enhanced effect is good" patented technology

The invention relates to the technical field of robots, and discloses a mechanical arm obstacle avoidance path planning based on an improved bidirectional RRT algorithm, which comprises the following steps: defining a mechanical arm and a working space: determining a kinetic model and kinematics constraint of the mechanical arm and obstacle distribution in the working space, by reasonably setting a starting point, a target point and algorithm parameters, it can be ensured that the algorithm has high exploration efficiency and convergence speed in the initial stage, a heuristic search strategy, such as a heuristic function in an A * algorithm, is introduced on a node expansion strategy, nodes can be guided to expand in a more desirable direction, and therefore the path planning quality is improved, and the path planning efficiency is improved. The position and the motion state of an obstacle are detected in real time, the node expansion direction is dynamically adjusted according to detected information, the mechanical arm can be effectively prevented from colliding with the obstacle, and the function is achieved generally through sensor data such as a laser radar and a camera.

The fabric for reinforcing the structure of the injection molding part and capable of realizing the three-dimensional structure, provided by the utility model, is formed by weaving the crisscrossed warps and wefts, a plurality of meshes are uniformly distributed on the breadth of the fabric, and the perimeters of the meshes are fixed, so that the fabric can form the three-dimensional structure through the deformation of the meshes when the fabric is pressed; the base plastic can be attached to an injection molding part with a complex three-dimensional shape, seams which cannot transmit loads through a fiber belt cannot exist on the injection molding part, the thickness cannot be increased, the edge of the injection molding part can be conveniently bestrewed with the base plastic, and after injection molding, the base plastic is connected with the fabric on the surface of the fabric, and can also be attached to the injection molding part on the surface of the fabric. The injection molding part further penetrates through meshes in the fabric to be connected with the fabric, the total connecting force is high, loads in different directions can be borne, and the reinforcing effect on the whole structure of the injection molding part is better.

The invention discloses an Ir-Rh-RE alloy and a preparation method thereof, and belongs to the technical field of alloy preparation. According to the alloy, Ir serves as a matrix, Rh with the mass fraction being 25%-30% and RE with the mass fraction being 0.05%-0.5% are contained, and RE is one or two of La and Ce which are added in a compounded mode. The mechanical property of the iridium-based alloy is improved by utilizing a composite strengthening means of solid solution strengthening of the Rh element and precipitation strengthening and grain refinement strengthening of a trace RE element compound. By optimizing the preparation process, the Ir-Rh-RE alloy material with excellent comprehensive performance such as high-temperature mechanics, oxidation resistance and corrosion resistance can be obtained, and the highest performance of the Ir-Rh-RE alloy material reaches that the room-temperature tensile strength is 1220 MPa; the tensile strength at 1500 DEG C is 49.5 MPa; after 10h at 1500 DEG C, the endurance strength is 12.6 MPa; the creep life is 65.5 h at the temperature of 1500 DEG C and the pressure of 5 MPa; the creep rate is 0.06% / h at the temperature of 1500 DEG C and the pressure of 5 MPa; under a static atmospheric condition, the alloy weightlessness is 50 mg / cm < 2 > within 10 hours at 1500 DEG C. The Ir-Rh-RE alloy disclosed by the invention can be used as an airspace engine jet pipe, a crucible, a glass fiber bushing and other structural materials needing comprehensive properties such as high temperature, high strength, oxidation resistance and corrosion resistance.

This invention discloses a parametric design method for server racks, comprising: decomposing parameters based on an existing standard rack model to obtain the parameters required for building the rack model; dividing the required parameters into three groups: a total dimension parameter group, a dependent variable parameter group, and a default value parameter group; the total dimension parameter group and the server dimension parameters together form the independent variable parameter group; mapping and associating the dependent variable parameter group with the independent variable parameter group to obtain the calculation relationship between the dependent variable parameter group and the independent variable parameter group; and generating a three-dimensional model of the rack using software based on the parameter values ​​of the obtained default value parameter group, total dimension parameter group, and dependent variable parameter group. This invention simplifies the rack modeling process, saves manpower, and improves work efficiency.

The utility model discloses high-elasticity polyester grey cloth which comprises a grey cloth body, a front polyester blank is integrally positioned on the surface of the front end of the grey cloth body, a rear polyester blank is integrally positioned on the surface of the rear end of the grey cloth body, and a front elastic fabric, a multifunctional composite fabric and a rear elastic fabric are integrally formed in the grey cloth body. The front elastic fabric is located on the surface of the front end of the multifunctional composite fabric, the rear elastic fabric is located on the surface of the rear end of the multifunctional composite fabric, longitudinal elastic strips and transverse elastic strips are located in the front elastic fabric and the rear elastic fabric, and the multifunctional composite fabric comprises polyester monofilament fabric and woven fabric. The high-elasticity polyester gray fabric is provided with the elastic reinforcing fabric and the multifunctional composite fabric, the use elasticity of the gray fabric can be improved, the effect is more excellent, the good reinforcing effect is achieved, the service life of the gray fabric can be prolonged, and the functions are more diversified.

The utility model relates to a traction pin mechanism with a protective plug and an automatic navigation tractor. The traction pin mechanism comprises a fixed seat, a liftable traction pin structure and a power structure, the lifting traction pin structure comprises a traction pin, a linear bearing, a traction pin pressing plate, a guide rod, a spring and a protection plug. The power structure drives the traction pin in the lifting traction pin structure to be upwards inserted into the goods shelf traction hole or downwards separated from the goods shelf traction hole, so that automatic traction and unloading work of the automatic navigation tractor is achieved, and the whole mechanism is simple in structure, convenient to operate and wide in applicability. Besides, a protective plug is arranged in the liftable traction pin structure, so that a gap between the traction pin and the linear bearing is shielded, the service life of parts is prolonged, the traction pin is well protected and reinforced, and abrasion deformation of the traction pin is avoided.

The present invention discloses a plug-in hybrid vehicle energy management method based on improved multi-objective DDPG, comprising the following steps: establishing an energy management system model of a plug-in hybrid vehicle, including a vehicle longitudinal dynamics model, an engine fuel consumption model, a battery equivalent circuit model, a battery life model and a drive / generator model; obtaining the state information of the plug-in hybrid vehicle in actual driving and inputting it into the energy management system model; using the energy management system model as an intelligent body of IMDDPG, configuring the reward function of IMDDPG according to the cumulative fuel consumption of the engine, the offset degree of the battery SOC and the change of the battery health status, using IMDDPG to perform multi-objective optimization on the energy management system model to obtain a trained reinforcement learning model; inputting the initial state information and driving conditions into the reinforcement learning model to obtain an energy management strategy during driving. The present invention comprehensively considers fuel economy and battery life, and improves the optimality and universality of the strategy while ensuring real-time performance.

The present application belongs to the field of artificial intelligence geoscience application and dense reservoir evaluation technology, and particularly to a dense reservoir structure porosity inversion method based on rock physical prior embedding. The method comprises the following steps: S1: obtaining conventional logging data and calibration data; S2: logging data preprocessing; S3: constructing rock physical prior features; S4: constructing a rock physical prior embedding input matrix; S5: constructing an integrated coupling model; S6: extracting bidirectional sequence features in the well depth direction; S7: performing nonlinear inversion; S8: constructing a rock physical prior constraint loss function; S9: performing joint global optimization; and S10: outputting intelligent inversion results of structure porosity. The continuous curves of free porosity, micro-microporosity and clay porosity output by the present application can directly serve reservoir effectiveness evaluation, movable fluid identification, reserve calculation and development interval optimization, and provide reliable parameter support for oil and gas exploration and development.

The utility model relates to the technical field of speed change rear shifting protection, and discloses a speed change rear shifting protection device which comprises a base and a solid iron rod, the base and the solid iron rod are welded and fixed, the diameter of the solid iron rod is 6-8mm, and the solid iron rod is in a solid design and a bent design. According to the utility model, the solid iron rod is bent, the base and the solid iron rod are welded and fixed, then the solid iron rod with the diameter of 6-8 millimeters is used, the bent side surface is L-shaped, the front surface is U-shaped, the height is more than 7 millimeters, the length is 100 millimeters, and the width is 50 millimeters, and the mounting hole is formed in the base. According to the wear-resistant protective device, the base is provided with the mounting holes, the mounting grooves are formed in the base, the mounting holes can be formed in the mounting fixing holes reserved in the frame, the mounting grooves can be clamped on the rear axle roller, certain wear-resistant protective work is improved under fixing of the wear-resistant protective layer, and the overall protective capacity is well improved in the working process.

Provided is a metal composite material which contains an adhesive layer and has superior rigidity than conventional metal composite materials. In this metal composite material (10), the sheet thickness (h1) of a thin steel sheet (1) and the sheet thickness (h2) of a low-specific-gravity sheet material (2) are set so as to satisfy the following numerical formula (1) that represents the bending rigidity [D] of the metal composite material (10) that has been set in advance: "numerical formula 1" imgabs0 # (in numerical formula (1), b is the width of the metal composite material (1), E1 is the longitudinal elastic coefficient of the thin steel sheet (1), E2 is the longitudinal elastic coefficient of the low-specific-gravity sheet material (2), and the thickness (h2) of the low-specific-gravity sheet material (2) is the thickness (h1) of the thin steel sheet (1). V1 is the Poisson's ratio of the thin steel plate (1), v2 is the Poisson's ratio of the low-specific-gravity sheet material (2), h1 is the sheet thickness of the thin steel plate (1), h2 is the sheet thickness of the low-specific-gravity sheet material (2), h3 is the thickness of the adhesive layer (3), h0 is the thickness of the adhesive layer (3) from the bonding interface between the low-specific-gravity sheet material (2) and the adhesive layer (3) to the neutral axis (Ax), and h1 and h2 satisfy the relationship h1 < h2.

The utility model provides a kind of boring bar reinforcing device, which has good reinforcing effect on boring bar, is easy to install and manufacture, and relates to the technical field of machining.The boring bar reinforcing device includes a boring bar sleeve, one end of the boring bar sleeve is provided with a mounting hole extending along the axis direction of the boring bar sleeve;along the axis direction of the boring bar sleeve, at least one boring bar support unit is installed on the pipe wall of the boring bar sleeve, the boring bar support unit includes at least two boring bar support screws arranged circumferentially along the boring bar sleeve;the boring bar support screw is arranged radially along the boring bar sleeve and is threadedly connected with the boring bar sleeve, so as to be movable towards or away from the center of the boring bar sleeve;one end of the boring bar support screw close to the center of the boring bar sleeve is provided with a boring bar support plate rotatably connected therewith, so as to be rotatable around the axis of the boring bar support screw.The utility model not only has better reinforcing effect on boring bar, but also has lower manufacturing cost.

The invention relates to a driving motor right support and a suspension system, and belongs to the technical field of electric automobile suspension systems, the driving motor right support comprises a mounting plate, the mounting plate comprises a top plate and a side plate, the top plate and the side plate are mutually connected to form an L-shaped structure, and at least two mounting holes are formed in the side plate; the reinforcing ribs comprise longitudinal rib groups and transverse rib groups, the longitudinal rib groups are vertically and fixedly connected with the top plate and the side plates, the transverse rib groups are vertically and fixedly connected with the side plates, the transverse rib groups and the longitudinal rib groups are fixedly connected with each other to form a latticed structure, and at least one mounting hole is located in a mesh of the latticed structure. Therefore, the longitudinal rib groups can lead the force borne by the top plate to the mounting holes below the side plates, and meanwhile, the longitudinal rib groups and the transverse rib groups are connected in a welded manner to form the latticed structure, so that the top plate and the side plates can be well reinforced, the force transmission can be effectively guided, and the stress around the mounting holes in the area covered by the latticed structure can be decomposed; the ratio of peripheral stress of the mounting hole is reduced, so that the stress design requirement is met.

An intermediate according to one embodiment of the present invention comprises: a rubber component; a cellulose nanofiber containing a carboxyl group; and a cation having a valence of 3 or more. The cellulose nanofibers include nanofibers derived from oxidized cellulose oxidized using an N-oxy compound. In addition, an intermediate according to one embodiment of the present invention comprises: a rubber component; a cellulose nanofiber containing a carboxyl group; and a polymer having a repeating unit derived from an unsaturated carboxylic acid salt containing a monovalent metal ion and / or an unsaturated carboxylic acid salt containing a monovalent metal ion, the cellulose nanofibers including nanofibers derived from oxidized cellulose oxidized using an N-oxy compound.

The utility model discloses a centrifugal machine airtight hanging basket structure which comprises a hanging basket cover, a rotor hanging basket and a lock catch, and the lock catch is hinged to a fixing part and can be rotationally matched with a protruding part in a buckled mode. The utility model further discloses a centrifugal machine hanging basket structure which comprises the rotor hanging basket, and the hanging connection openings are formed in the two sides of the rotor hanging basket in a mirror image mode. The utility model further discloses a centrifugal machine horizontal rotor which is suitable for the centrifugal machine airtight hanging basket structure and is further suitable for the centrifugal machine hanging basket structure. According to the utility model, the lock catch rotates to be buckled with the lug boss, so that the hanging basket cover and the rotor hanging basket can be sealed, the hanging basket cover is convenient and durable, and the sealing performance is enhanced; no other accessories are arranged on the rotor hanging basket, the rotor hanging basket is compatible with an airtight hanging basket structure and a common non-airtight hanging basket structure, and normal switching use is not affected; when the horizontal rotor rotates, the rotor hanging basket is thrown to a horizontal state under the action of centrifugal force, the hanging basket cover rotates and points to the interior of the horizontal rotor, the windward area is not increased, and wind resistance is prevented from being increased.

The utility model discloses a spliced drain board which comprises an upper layer board body and a lower layer board body, and the upper layer board body is arranged on the left side of the upper layer board body. A butt joint lower plate is arranged on the right side of the lower-layer plate body; the butt joint upper plates and the butt joint lower plates on the two adjacent upper-layer plate bodies and the two adjacent lower-layer plate bodies are arranged in an up-and-down overlapped butt joint mode; a plurality of second circular truncated cones are distributed at the top end of the upper-layer plate body; a plurality of circular truncated cones I are distributed at the top end of the butt joint upper plate; according to the waterproof drainage plate, waterproof treatment can be conducted on the splicing position of the two drainage plate bodies, connection between the two drainage plate bodies is more stable, meanwhile, the sealing performance of connection between the two drainage plate bodies is improved, and extremely high practicability is achieved; the second circular truncated cone can be supported and reinforced, the interior and the exterior of the second circular truncated cone are well reinforced, the laying and application process of the drainage plate is normally and orderly conducted, and efficient and stable use operation of the drainage plate is guaranteed; the device is simple in structure, convenient to operate and worthy of popularization.