9 results about "Real time kinetics" patented technology

The invention discloses a dynamic tuning and fatigue slow-release method for a wind power flexible steel tower based on an intelligent variable stiffness segment, and relates to the technical field of wind power generation, and the method comprises the following steps: collecting and constructing a real-time dynamic state of a tower body on line; identifying a leading vibration mode and drifting characteristics of the tower body; dynamically adjusting the rigidity state of the intelligent variable rigidity section; periodical softening or stiffening operation is conducted on the intelligent variable-rigidity sections, and tower body strain redistribution is guided; and performing feedback evaluation on the dynamic tuning and fatigue slow-release effect, and updating a subsequent rigidity adjustment and fatigue management strategy. According to the method, the dominant vibration mode and inherent frequency drift of the wind power flexible steel tower are perceived and recognized in a multi-source online mode, the intelligent variable-rigidity section is dynamically adjusted based on the frequency matching relation, tower body vibration self-adaptive tuning is achieved, and meanwhile the self-adaptive tuning of the tower body vibration is achieved by combining periodic softening to guide strain redistribution and updating the control strategy in a closed-loop mode. Therefore, fatigue damage is reduced, and long-term operation safety and reliability of the tower body are improved.

The invention discloses an air suspension gas filling system and method based on an intelligent sensor, and belongs to the technical field of automobile intelligent chassis control. The system comprises a central control unit, a pressure sensor group, a gas filling execution unit and an environment temperature sensor. The core of the method is that a central control unit inquires an internal mapping table based on vehicle real-time kinetic parameters to generate target pressure values of all air springs; the dynamic pressure compensation model is called, and the accurate pressure compensation amount is calculated in combination with the real-time pressure, the environment temperature and the acceleration data; and a high-speed proportional valve and an air pump in the execution unit are controlled to realize prospective and high-precision linear adjustment on the pressure of the air spring. Pressure is used as a direct control target, the hysteresis quality and inaccuracy of indirect height control in the prior art are overcome, active and pre-judgment type management of the vehicle body posture is achieved through multi-sensor fusion and feedforward-feedback composite control, and the adaptability, stability and comfort of the vehicle are remarkably improved.

The invention relates to the technical field of high-voltage switch equipment and control, and discloses a self-adaptive control method for an operating mechanism of a circuit breaker of an environment-friendly alternative gas-insulated switchgear, which comprises the following steps of: before the operating mechanism works, acquiring internal environment parameters of a gas box of the circuit breaker, load current of a main loop and bus voltage of a control loop in real time; constructing a real-time dynamic model containing a nonlinear resistance item based on the acquired main loop load current and the internal environment parameters of the gas tank; the nonlinear resistance item is obtained by parameterizing hardware characteristics of the circuit breaker system. By constructing a multi-physics-field coupling dynamic model containing a breathing effect corrected gas density parameter, an aerodynamic resistance parameter of a spiral turbulent flow structure and a frictional resistance parameter of a phase change thermal characteristic, the problem that the load resistance generated by the environment-friendly circuit breaker due to introduction of special insulation and heat dissipation hardware is difficult to predict is effectively solved; and the matching precision of the output energy of the operating mechanism and the actual complex working condition load is obviously improved.

The application discloses a tilt-rotor aircraft transition section double-layer safety control method, device, equipment, medium and product, and relates to the field of tilt-rotor aircraft safety control. The method comprises the following steps: acquiring information data of a target tilt-rotor aircraft at a current time; in an upper-layer control architecture, based on a current-time corresponding tight format dynamic linearization model and a corresponding safety corridor constraint, rolling optimization is performed through a particle swarm optimization algorithm with a penalty function; in a lower-layer control architecture, according to optimization data at the current time, control distribution is performed through a multi-objective weighted quadratic programming method; and the real-time dynamic state of the target tilt-rotor aircraft is determined according to a control instruction at the current time, and is fed back to the tight format dynamic linearization model in the upper-layer control architecture through a multi-source on-board sensor to perform closed-loop control. The application aims to realize stable and safe transition control of a tilt-rotor aircraft that can land.

The invention discloses a high-fidelity man-machine interaction driving test method and device based on digital twinning, and the scheme can comprise the steps: collecting the operation of a driver through a force feedback steering wheel and pedal equipment, generating an operation signal, receiving the operation signal through a data processing and control software environment, and converting the operation signal into a vehicle control instruction; and the digital twin model is sent to the vehicle dynamics simulation software, the simulation software carries out real-time dynamics calculation on the digital twin model according to an instruction and outputs vehicle state data, the data is subjected to byte packaging processing to form a binary data packet, and the binary data packet is synchronously sent to the three-dimensional graphic engine through a UDP protocol. The graphic engine analyzes the data packet and directly drives the vehicle model in the virtual scene to update the position, the posture and the wheel state according to the content of the data packet, and a built-in simple physical engine is not used in the process. According to the scheme, all software modules run at the same ip address or networking computing equipment, data interaction is achieved through a UDP protocol, and a driving test closed-loop platform with the human-machine-in-the-loop is jointly constructed.

The invention discloses a train adhesion control method and device and electronic equipment. The method comprises the following steps: acquiring real-time dynamic data of a target train; inputting the real-time dynamic data into a pre-constructed adhesion observer, and determining a current estimated value of the target train by the adhesion observer based on a train dynamic model corresponding to the target train; determining the maximum traction force corresponding to the target train based on the estimated value and a train dynamics model; and based on the maximum traction force, the real-time dynamic data and a pre-constructed train high-order sliding mode model, the target train is controlled, and the train high-order sliding mode model comprises a basic control law based on an adhesion observer and a train dynamic model, a train output limitation law and a saturation compensation control law. By means of the method, the creep speed can be kept within a reasonable range all the time, and the wheel set idling phenomenon is effectively avoided; the speed tracking error can be reduced, displacement tracking is more accurate, output is stable and reasonable, and stability and adaptability are high.

This application relates to a method, apparatus, device, and storage medium for multi-dimensional vehicle stability control. The method includes: establishing a multi-degree-of-freedom dynamic model; determining a comprehensive stability evaluation index for a target vehicle in multiple dimensions based on the model; the dimensions include at least two of longitudinal slip, sideslip, and roll; acquiring real-time dynamic parameters of the target vehicle; and determining desired control quantities for the dynamic parameters of the target vehicle in different dimensions based on the comprehensive stability evaluation index; and performing vehicle control based on the desired control quantities in different dimensions. This application enables coupled adjustment of the vehicle's stability state in different dimensions, solving the problem in existing technologies where different-dimensional stability control is incompatible under extreme vehicle operating conditions.

The application provides a kind of dynamics real-time simulation method and system suitable for train differentiation control.The system realizes real-time dynamics simulation under each working condition by quickly calculating the air brake working condition of differentiation control train.In addition, the instructions output by the differentiation control device in real time are dynamically calculated, and the dynamics indicators such as the coupler force of all locomotives and vehicles on the current running train can be displayed in real time. In addition, the maximum coupler force of all locomotives in the future distance and the position where the maximum coupler force occurs obtained by parallel computing are used as the basis for the optimization planning curve of the differentiation control device, so as to realize the online optimization of the dynamics performance of the differentiation control system and ensure the good coupler force performance of the train under differentiation control. In addition, through real-time simulation of the state of each locomotive, the dynamics response of the differentiation control train under abnormal state can be simulated in real time.

The application belongs to the technical field of flexible cable simulation, and particularly relates to a digital modeling system of a flexible cable motion simulation model, which comprises a physical model establishing module and a geometric model establishing module; in the application, the physical model of the flexible cable is modeled by using discrete concentrated mass points and rods, compared with the traditional mass point-spring model, the spring model is replaced by the rod unit, the complexity and modeling difficulty of the cable physical model are reduced, the simulation efficiency of the cable is improved while the physical precision of the cable simulation is ensured, and real-time dynamic simulation of the cable is realized; the geometric model of the cable adopts a discrete "capsule" unit, the matching of the geometric model and the physical model of the cable can be ensured through the mode, so that the display precision of the digital model of the flexible cable is ensured, and the geometric model is driven by the physical model, so that the motion simulation effect of the virtual cable is more realistically presented.