Motion simulator
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Solution Overview
Problem
Existing motion simulators have complex structures, limited yaw motion angles, and insufficient motion variety, making them costly and difficult to control effectively.
Innovation Solution
A motion simulator with a simple structure, utilizing a base plate, motion platform, first and second actuators, and a carrying platform, which allows for left-right and forward-backward movements to simulate various motions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a Stewart platform with six telescoping actuators is used to simulate various motions, then the motion simulation capability is improved, but the device complexity and cost increase significantly
Solution Approach 1:
The patent extracts only the essential actuators needed for specific motion simulations rather than using all six actuators of a complete Stewart platform. By selecting and positioning fewer actuators (two or three) at specific locations, the system achieves the required motion simulation capability while significantly reducing structural complexity and cost.
Solution Approach 2:
The patent designs actuators that can perform multiple functions. For example, a single actuator can contribute to both pitch and roll motions depending on its positioning and orientation. This multi-functionality allows the reduced actuator set to still achieve comprehensive motion simulation coverage.
2Device complexity
If the horizontal rotation angle of yaw motion is fixed in a Stewart platform, then the structure is simplified, but the range of yaw motion is limited
Solution Approach 1:
The patent makes the yaw motion dynamic by allowing the motion platform to rotate horizontally through a wide range (0-360 degrees) rather than fixing the rotation angle. This is achieved by coordinating the movements of the actuators to enable full rotational capability, transforming the static yaw angle into a dynamic variable.
3Device complexity
If the number of actuators is reduced to simplify the motion simulator structure, then the cost and control complexity are reduced, but the motion variety becomes insufficient
Solution Approach 1:
The patent applies local quality by positioning actuators at specific locations with specific orientations to achieve different motion effects. Each actuator is strategically placed to optimize its contribution to particular motions (pitch, roll, yaw), ensuring that the reduced number of actuators still provides comprehensive motion variety through optimal spatial distribution.
4Manufacturing precision
If multiple actuators are used to control each simulated motion, then the motion precision is improved, but the ease of operation deteriorates
Solution Approach 1:
The patent implements a control system that coordinates the actuators based on feedback from sensors detecting the motion platform's position and orientation. This feedback mechanism allows the system to automatically adjust actuator movements to achieve precise motion simulation while simplifying operator control, as the system self-regulates to maintain accuracy.
Data Source
AI summary
A motion simulator includes a base plate, a motion platform, a first actuator, a base, a second actuator and a carrying platform. The motion platform is arranged on the base plate and movably connected to the base plate. The first actuator is arranged on the motion platform, movably connected to the motion platform. The base has a base body extending in a length direction and a base extension surface extending in a width direction. The first actuator is movably connected to the base extension surface. The second actuator is movably arranged on the base. The carrying platform is movably connected to the second actuator. Through a connection relationship between the base and the second actuator, the first actuator performs a left-right movement of the carrying platform relative to the motion platform and the second actuator performs the forward-backward movement of the carrying platform relative to the motion platform.