Flow and pressure divided cavity coordinated control load simulation method
A technology of coordinated control and load simulation, which is applied in the field of simulation, can solve problems such as failure to meet high dynamic load simulation requirements, low energy utilization efficiency, and large excess force interference, etc., to achieve good excess force suppression effect, flexible optional types, and elimination of The effect of forced flow
Active Publication Date: 2017-11-14
山西海洋液压有限公司
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[0007] The purpose of the present invention is to solve the technical problems of the traditional load simulation technology, such as large redundant force interference, large throttling loss, low energy utilization efficiency, and inability to meet the high dynamic load simulation requirements, and provide a load system that is easy to implement and takes into account the dynamic response characteristics of the loading system. A load simulation method for coordinated control of flow and pressure sub-chambers and energy utilization efficiency
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[0028] According to the direction of movement of the steering gear system and the size of the load spectrum command, the working modes of the negative loading device can be divided into four types. In order to facilitate the analysis, first define the movement direction X of the steering gear and the sign of the load spectrum command F as follows: It is stipulated that when the direction of X and F is consistent with the positive direction of the horizontal axis of the Cartesian coordinate system, it is positive, and when it is opposite, it is negative.
[0029] Such as figure 2As shown, when the direction of movement of the steering gear and the command direction of the load spectrum are both positive (working mode 1), the chamber A of the loading actuator works in the pressure mode, and the chamber B works in the flow mode; when the movement direction of the steering gear is positive, When the load spectrum command is negative (working mode 2), the loading actuator chamber ...
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The invention belongs to the technical field of simulation, and particularly relates to a flow and pressure divided cavity coordinated control load simulation method. According to the system, divided cavity control is conducted on flow and pressure of an inlet and outlet independent control load device, firstly, a speed instruction calculation unit is utilized for generating a synchronous speed instruction, then, a speed sensor is utilized for feeding back signals and load spectrum instructions, a speed servo control unit is used for generating a motion control signal, the flow flowing in (or flowing out) of a load actuator is adjusted, and the motion interference of a steering engine is decoupled; and on the basis of the load spectrum instructions and the load sensor feedback signals, the load servo controller is used for generating load control signals, the pressure of the other containing cavity of the load actuator is controlled, and the high-performance load simulation function is achieved through divided cavity coordinated control over the load system flow and pressure states. According to the flow and pressure divided cavity coordinated control load simulation method, divided cavity coordinated control over the load system flow and pressure states is achieved, the problem of redundant force interference in the semi-physical simulation field can be effectively solved, and the beneficial effects that the simulation precision is high, and project implementation is convenient are achieved.
Description
technical field [0001] The invention belongs to the technical field of simulation, and in particular relates to a load simulation method for coordinated control of flow pressure sub-chambers. Background technique [0002] When an aircraft or ship is sailing at high speed or changing its original course, its steering gear system must bear the reaction force from the air or water. In order to test the load characteristics and reliability of the steering gear system, it needs to be tested during the research and development process. A series of hardware-in-the-loop simulation loading experiments. The main significance of this type of experiment is to reproduce the load on the steering gear system under real working conditions in the laboratory environment, and the function of the load simulation system is to generate load force (moment) Load the servo system. The load simulator can be used to test the loading characteristics of the steering gear system, assess the strength of ...
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IPC IPC(8): F15B21/00F15B13/02F15B19/00
CPCF15B13/02F15B19/00F15B21/00
Inventor 汪成文王君赵斌孟宏君权龙
Owner 山西海洋液压有限公司
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