Yacht dolphin movement real-time simulation method in yacht simulator

Abstract

The invention discloses a yacht dolphin motion real-time simulation method in a yacht simulator. The yacht dolphin motion real-time simulation method comprises the following steps: reading yacht design parameters; calculating a steady motion state of the yacht in still water; calculating hydrodynamic coefficients of two-degree-of-freedom motions of heaving and pitching of the yacht; judging the boundary condition of the yacht dolphin motion based on the Routh-Hurwitz linear stability criterion; and the yacht dolphin is stimulating generation of the dolphin motion of the yacht by using a manualintervention method. According to the method, the yacht stress is analyzed based on a flat plate sliding theory by starting with the essence of high-speed movement of the yacht; the hydrodynamic coefficients of heaving and pitching of the yacht in a high-speed motion state are calculated based on a high-frequency free liquid level hypothesis; and the solved hydrodynamic coefficients of the yachtare transmitted to a yacht simulator system to calculate the real-time motion attitude of the yacht; and the yacht simulator is finally driven to operate in cooperation with the vision of the yacht simulator, so that the simulation real-time requirement of the yacht simulator is met, and the precision requirement of the yacht simulator is also met.

Description

technical field [0001] The invention relates to a yacht simulator, in particular to a real-time simulation method for yacht dolphin movement in the yacht simulator. Background technique [0002] Yachting is a thrilling and exciting water leisure and entertainment project, which has gradually entered people's field of vision. However, the yacht project has not reached the level of popularization because of its high cost and relatively scarce yacht practitioners. A yacht simulator is a simulation device that simulates the water sports of a yacht. From the perspective of consumers, this equipment can reduce the cost of yacht experience, and you can experience a full range of yacht experience without boarding a real boat or even reaching the sea; from the perspective of yacht practitioners, this equipment can reduce the cost and risk of yacht driver training, Yacht pilots are fully trained on the simulator, and then carry out real ship training and verification. [0003] Dolp...

AI Technical Summary

Problems solved by technology

Experimental fluid mechanics has very high requirements on the test site, requiring an experimental pool, towing equipment and a real ship model. This method has great significance for theoretical research and consumes a lot of manpower and material resources.

Computational fluid dynamics is to subdivide the surface of the yacht geometric model, calculate the force on each differential unit, and then sum to obtain the resultant force on the hull. The calculation is performed by a computer, which requires a lot of preparatory work in the early stage and the calculation process is very time-consuming

The above two methods are of great significance for theoretical research, but they are not suitable for yacht simulators that require strict real-time calculations and control production costs for the purpose of engineering applications. Therefore, a yacht simulator that can simulate yacht dolphins that can be applied to yacht simulators is proposed. The real-time algorithm of motion is very necessary

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