14 results about "Stationary model" patented technology

This invention provides an energy-aware intelligent model dynamic pruning and scheduling method and system, relating to the field of model lightweighting technology. By introducing an energy-aware dynamic pruning mechanism, a real-time scheduling strategy, and a closed-loop feedback structure, this invention achieves dynamic optimization of energy consumption, accuracy, and latency during deep learning model inference, offering significant advantages over existing static pruning or fixed model inference schemes. The dynamic pruning decision mechanism of this invention can perform fine-grained structural adjustments based on the real-time energy budget during inference. Its runtime control overhead is far lower than traditional dynamic networks, and it does not significantly increase inference time. The extremely low runtime overhead allows it to operate stably in ultra-low-power scenarios such as wearable devices, IoT nodes, and energy harvesting equipment.

A multifunctional electromagnetic deployment device and method for wind tunnel model deployment tests belongs to the field of dynamic testing technology for model wind tunnels. It solves the problems of slow deployment speed and poor repeatability in existing technologies. Key technical points: The top surface of the bracket is fixedly connected to the test model. Two openings are made at the bottom of the bracket, each containing an electromagnet. Two electromagnet cover plates are installed at the bottom of the bracket corresponding to the two electromagnets. A limiter track is provided between the two openings. The model head section, front magnetic section, middle section, rear magnetic section, and tail section are sequentially spliced ​​and fixed. Mounting grooves are provided on both the front and rear magnetic sections. A neodymium magnet with a countersunk hole is placed in the mounting groove closest to the bracket at the top. This invention realizes the connection of the test model before separation, free deployment of the deployed object, and deployment of the object with initial velocity, ensuring close contact between the deployed objects and simulating the real separation process.

The application discloses a civil aviation tractor-oriented adaptive model predictive control method and system based on fusion perception, and belongs to the technical field of automatic driving and vehicle motion control. The application identifies load parameters such as the number, mass and geometric size of a baggage compartment through fusion perception of a vehicle-mounted laser radar and a visual sensor, dynamically constructs an adaptive variable-structure multi-body dynamics model, adaptively adjusts the weight and constraint boundary of a model predictive controller based on the real-time model, solves an optimal control sequence by rolling and executes the optimal control sequence through a drive-by-wire chassis, and simultaneously realizes safety monitoring through closed-loop feedback of a vehicle motion state. The application can adapt to 1-10 baggage compartment dynamic load working conditions, solves problems such as mismatch of a traditional fixed model, low trajectory tracking precision, high risk of folding and collision and the like, realizes high-precision trajectory tracking and all-condition safety control, adapts to a civil aviation apron operation scene, and has high safety, strong adaptability and good engineering landing value.

1. Name of the product in this design: Bench vise (for model painting). 2. Purpose of this design: For clamping and fixing models. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

This application discloses a non-contact model motion simulation display stand for model display, comprising a frame body, a conveyor belt device, and a magnetic fixing device. The conveyor belt device is mounted on the frame body; the magnetic fixing device is also mounted on the frame body, spaced apart from the model, and is used to fix the relative position between the model and the magnetic fixing device. During use, after the model car is placed on the conveyor belt device, the magnetic fixing device positions the model car in a preset display position using non-contact magnetic attraction. When the conveyor belt device is activated, the model car remains in place under the action of the magnetic fixing device, while its wheels rotate due to friction with the conveyor belt device, thus simulating the dynamic movement of the model car on a real road surface.

This invention relates to a model buffer and capture device for land-based vertical catapult tests. The device, used to capture a model, includes a damping system and a capture system. The damping system absorbs energy and buffers during the capture process. The capture system, mounted on the damping system, includes a capture support with a buffer net at its top and a gripper system below the net for clamping and securing the model. A photoelectric proximity switch is also mounted on the capture support; when the switch detects an object passing through, it sends an electrical signal to control the gripper system. A launch tube, vertically positioned below the capture system, launches the model. This invention enables capture in vertical land-based catapult tests, allowing for safe, damage-free, and efficient model recovery after launch, thus improving test efficiency. The buffer system significantly reduces the load on the grippers during model capture, enhancing the overall system reliability.

A multifunctional electromagnetic launching device and method for wind tunnel model launching test belong to the technical field of model wind tunnel dynamic test. The problems of slow launching speed and poor repeatability in the prior art are solved. The technical points are as follows: the top surface of the hanger is fixedly connected with the test model, two orifices are opened at the bottom of the hanger, two electromagnets are installed in the two orifices, two electromagnet covers are installed at the bottom of the hanger corresponding to the two electromagnets, and a limit stop rail is arranged between the two orifices; a model head section, a model front magnetic section, a model middle section, a model rear magnetic section and a model tail section are sequentially spliced and fixed, installation grooves are arranged on the model front magnetic section and the model rear magnetic section, and a neodymium magnet with a counterbore is placed in the installation groove closest to the hanger at the top. The connection of the separated test model, the free launching of the launched object and the launching of the launched object with an initial speed are realized, the close contact between the launched objects is ensured, and the real separation process is simulated.

This invention discloses an experimental device for the thermo-mechanical coupling effect of shield tunneling in an artificially frozen environment. The device includes a soil box, a model shield machine, a support device, and a laser displacement sensor. The soil box has a model shield machine inlet and an outlet on its front and rear sides, respectively. A cold compensation array is installed inside the soil box, and a temperature sensor array is arranged inside the cold compensation array along the tunneling direction. The support device supports and fixes the model shield machine. A laser displacement sensor is installed at the tail of the model shield machine. This device aims to reveal the influence mechanism of localized ground weakening induced by non-uniform thermal disturbance on the shield machine's attitude, to deeply explore the spatiotemporal evolution of the eccentric load moment and the ground response characteristics under complex thermo-mechanical coupling conditions, and thus analyze the imbalance causes under thermo-mechanical coupling, providing reliable experimental basis and data support for attitude prediction and disaster prevention in shield tunneling in artificially frozen strata.

The invention specifically relates to an automobile spraying practical training platform, and belongs to the technical field of spraying teaching equipment. The automobile spraying practical training platform comprises a seat body, a fixing assembly and a simulation assembly. The fixing assembly is used for fixing a model part, the simulation assembly and the fixing assembly are oppositely arranged in the first direction, the simulation assembly comprises a moving seat, two reels and a water-encountering color developing film, the moving seat is movably connected to the seat body in the first direction, the two reels are rotationally connected to the moving seat, and the two reels are arranged at intervals in the second direction; the second direction is perpendicular to the first direction, and the two ends of the water color developing film are wound around the two reels respectively. By spraying water to the water-encountering color developing film to simulate the paint spraying process, on one hand, the water-encountering color developing film can be reused after being dried, and the training cost is reduced; and on the other hand, the water is a harmless material, so that the risk of harming the body of the trainee is reduced.

The invention provides a slurry circulation control method and system based on multi-target control, and relates to the technical field of slurry circulation control. According to the technical scheme provided by the invention, the constraint boundary and the weight coefficient of the model are modified in real time according to working condition changes. When the load of the unit fluctuates severely or the sulfur content of the coal is suddenly changed, the model structure is reconstructed, the generated multi-target fitness function accurately adapts to the optimization requirement of the suddenly changed working condition, and the Pareto leading-edge solution set obtained through iterative optimization fully reflects the optimal tradeoff relation under the current transient characteristics. After the robust optimal solution screened from the solution set is analyzed into the control instruction, the circulating pump combination and rotating speed adjustment of the slurry circulating system can accurately respond to sudden change of the working condition, control failure of a traditional fixed model under the sudden change working condition is avoided, and therefore the control effect of the desulfurization system under the complex dynamic working condition is remarkably improved.

The utility model discloses a large-size mould supporting and adjusting device capable of stably operating, which comprises two fixed equipment templates and a movable equipment template, four stainless steel equipment guide rods are fixedly connected between the two fixed equipment templates, and the movable equipment template is slidably connected between the stainless steel equipment guide rods. A movable mold frame is fixed to the middle of the equipment movable mold plate, a fixed mold frame is fixed to the middle of the equipment fixed mold plate, a fixed mold core is fixed to the middle of the fixed mold frame, a mold cavity matched with the fixed mold core is formed in the middle of the movable mold frame, and the static pulley block is connected between the movable mold frame and the stainless steel equipment guide rod. The movable pulley blocks are arranged on the two sides of the fixed mold core and play a role in supporting the front end of the movable mold frame, so that the movable mold frame cannot incline in the moving process, and similarly, the movable pulley blocks capable of moving are arranged on the two sides of the fixed mold core and can play a role in supporting the front end of the fixed mold core before mold closing, so that the fixed mold core cannot incline.

The utility model provides a machining device for a model track. The machining device comprises a track tool, a first air pressure clamping assembly, a second air pressure clamping assembly and a control box. The track tool is provided with a first groove used for fixing the model track at a time, when the model track needs to be machined, an operator firstly operates the control box, the first air pressure clamping assembly and the second air pressure clamping assembly are separated, then the model track is placed in the first groove, and therefore one-time fixing of the model track is completed. And then, the control box controls the first air pressure clamping assembly and the second air pressure clamping assembly to move, and then the model track is secondarily fixed. The model track is primarily fixed on the track tool through the first groove, and the first pneumatic clamping assembly and the second pneumatic clamping assembly are matched to secondarily fix the model track, so that the model track is fixed, subsequent machining treatment is facilitated, the tedious steps of manual fixing are simplified, manual intervention is reduced, and the production efficiency is improved. And the working efficiency is improved.

This invention provides a stagnation model feeding bracket and feeding method, including a water-cooled support arm, a transfer bearing component, a rotary feeding mechanism, and a host computer control system. One end of the transfer bearing component is fixedly connected to the output shaft of the rotary feeding mechanism, and the other end of the transfer bearing component is provided with a polygonal connector for mounting multiple water-cooled support arms. The stagnation model is fixedly mounted on the end of the water-cooled support arm away from the transfer bearing component. Both the water-cooled support arm and the transfer bearing component have lead wire channels for connecting various sensors on the stagnation model. The host computer control system controls the rotary feeding mechanism to drive the rotation of the transfer bearing component, thereby causing the polygonal connector to rotate at a certain angle, sequentially rotating multiple water-cooled support arms with stagnation models mounted to the nozzle position. This allows for the acquisition of multiple flow field parameters or the ablation assessment of multiple stagnation models in a single experiment, greatly improving experimental efficiency and reducing the workload of operators.

The application discloses a kind of electromagnetic log auxiliary ship integrated navigation method, first according to the influence of ocean current and measurement noise time-varying to electromagnetic log speed measurement, establishes a fixed model set, includes two sub-models, and is adaptively generated a model set by the method of expected model expansion;Secondly, the coupling term of state vector and measurement noise covariance matrix is decoupled using variational bayes based on mean field theory, and a new adaptive filtering formula is derived;Again the estimation fusion of the interactive multiple model (IMM) adaptive filtering result of fixed model set and expected model set is carried out respectively;Finally, the fused estimation result is used to correct the attitude, velocity and position calculated by the strapdown inertial navigation system.The application can eliminate the influence of ocean current and measurement noise time-varying, effectively improve the positioning accuracy of ship integrated navigation.