Inflatable Actuator Seat Assembly for Multi-Axis Motion Simulation
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Solution Overview
Problem
Current motion simulator seat assemblies rely on hydraulically operated telescoping cylinders or pneumatic platforms, which may not effectively handle shear stress without central support and lack flexibility in motion simulation, limiting the range and realism of simulated experiences.
Innovation Solution
A seat assembly utilizing inflatable actuators as the sole motive force, supported by a mechanical linkage system with stabilizing members and a pressure control system to vary inflation levels, allowing for multi-directional movement and pitch adjustment, enabling realistic simulation of motions like heave, pitch, and roll.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If hydraulically operated telescoping cylinders are used to move seats, then the seats can be moved in a defined pattern, but the system cannot effectively handle shear stress without central support and lacks flexibility in motion simulation
Solution Approach 1:
The system divides the motion control into multiple independent inflatable actuators positioned at different locations on the platform. Each actuator can be independently controlled to provide motion in different directions, eliminating the need for a central support structure while maintaining flexibility in motion simulation patterns.
Solution Approach 2:
The patent replaces traditional hydraulic telescoping cylinders with pneumatic inflatable actuators. These actuators use air pressure to generate motion forces, providing both the required motion control flexibility and the ability to handle shear stress through their compliant nature, without requiring rigid central support structures.
2Adaptability or versatility
If pneumatic platforms are used to allow open center handling, then shear stress can be handled without central support, but the system lacks the ability to provide multi-directional movement and pitch adjustment
Solution Approach 1:
The platform is equipped with multiple segmented inflatable actuators positioned at different locations and orientations. This segmentation allows independent control of each actuator to achieve multi-directional movement and pitch adjustment, while maintaining the open-center design that handles shear stress without central support.
Solution Approach 2:
The system uses dynamically controllable inflatable actuators that can adjust their inflation levels in real-time based on programmable acceleration profiles. This dynamic control enables the platform to provide complex multi-directional movement patterns and pitch adjustments while maintaining operational simplicity through centralized control.
3Adaptability or versatility
If inflatable actuators are used as sole motive force, then flexibility and realistic motion simulation are achieved, but the system must support full passenger weight during motion
Solution Approach 1:
The system uses pneumatic inflatable actuators designed with sufficient structural strength and surface area to support full passenger weight during motion. The actuators are engineered to withstand both the static load of passengers and the dynamic forces generated during acceleration, providing realistic motion simulation while maintaining adequate load-bearing capacity.
Solution Approach 2:
The inflatable actuators are constructed using composite materials that provide both the flexibility needed for realistic motion simulation and the strength required to support full passenger weight. The composite structure allows the actuators to deform smoothly for realistic motion while maintaining structural integrity under full load conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The inflatable actuator-based seat assembly provides a flexible and realistic motion simulation capable of supporting passenger weight, with programmable acceleration and varied motion profiles, enhancing the immersive experience in motion simulators.
Implementation Method 1
A plurality of spaced apart inflatable actuators are drivingly connected to the passenger support member
Implementation Method 2
A passenger support member is moveably mounted along the plurality of stabilizing members
Implementation Method 3
The passenger support member may be slideably mounted to the plurality of stabilizing members
Data Source
AI summary
A seat assembly comprises a plurality of stabilizing members mounted to a base. A passenger support member is moveably mounted along the plurality of stabilizing members. A plurality of spaced apart inflatable actuators are drivingly connected to the passenger support member.