Platform Stabilization via Isolation Array and Active Damping
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Solution Overview
Problem
Current active platform stabilization systems face challenges with cost, complexity, and reliability due to complex mechanical gimbal systems, which include tight machining tolerances, complex assembly requirements, and ongoing maintenance needs.
Innovation Solution
A platform stabilization system that isolates a payload from motion using an isolation array directly connecting the support frame and platform without intervening gimbals, allowing linear and rotational movement with greater resistance to linear motion, and utilizing an active drive system and control system for stabilization and damping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If complex mechanical gimbal systems are used for platform stabilization, then stabilization performance is improved, but device complexity and cost increase
Solution Approach 1:
The patent removes the complex mechanical gimbal structures from the stabilization system, extracting only the essential function of isolating the payload from platform motion. This is achieved through a direct-mount configuration where the payload is suspended from the platform using simple elastic elements or dampers, eliminating the need for intricate gimbal mechanisms while maintaining stabilization performance.
Solution Approach 2:
The patent replaces the mechanical gimbal system with a non-mechanical or simplified mechanical suspension system using elastic elements, springs, or dampers. This substitution eliminates complex mechanical linkages, bearings, and actuators while achieving the same stabilization effect through passive elastic isolation or active control of simpler components.
2Stability of the object's composition
If complex mechanical gimbal systems are used for platform stabilization, then stabilization performance is improved, but manufacturing and maintenance difficulty increase
Solution Approach 1:
The patent extracts the essential stabilization function from the complex gimbal system, leaving only simple suspension elements that are easy to manufacture and assemble. The payload is directly mounted to the platform using straightforward elastic or damping elements, eliminating the need for precision-machined gimbal components and complex assembly procedures.
Solution Approach 2:
The patent employs simple, inexpensive suspension elements such as elastic bands, springs, or basic dampers that can be easily replaced if needed. These components are far simpler and more economical than precision mechanical gimbals, reducing both initial manufacturing cost and ongoing maintenance expenses.
3Stability of the object's composition
If traditional isolation systems are used, then payload isolation from linear motion is achieved, but rotational movement is constrained
Solution Approach 1:
The patent segments the isolation function into independent linear and rotational components. The suspension system provides linear isolation through vertical elastic elements, while the payload is permitted to rotate freely about the suspension point. This segmentation allows each degree of freedom to be treated independently, achieving both isolation and rotational freedom.
Solution Approach 2:
The patent changes the isolation parameters by using asymmetric suspension configurations or anisotropic damping elements that provide strong isolation in the linear direction while offering minimal resistance to rotational motion. This parameter differentiation allows the system to simultaneously achieve linear isolation and rotational freedom.
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
This approach reduces the complexity and cost of the system while enhancing reliability by eliminating the need for intricate gimbal structures and improving the platform's stability and damping capabilities.
Implementation Method 1
Each isolator permits linear movement of the platform relative to the support frame with three degrees of freedom and each isolator permits rotational movement of the platform relative to the support frame with three degrees of freedom
Implementation Method 2
an active drive system and control system for stabilization and damping
Implementation Method 3
utilizing an active drive system and control system for stabilization and damping
Data Source
Figure 1
Figure 2a~2b
Figure 3a~3b
AI summary
A platform stabilization system comprises a support frame, a platform and a plurality of isolators each extending directly between the support frame and the platform. Each isolator permits linear movement of the platform relative to the support frame with three degrees of freedom and permits rotational movement of the platform relative to the support frame with three degrees of freedom. The isolators cooperate to form an isolation array supporting the platform directly within, and spacing the platform from, the support frame. The isolation array permits limited linear movement of the platform within the support frame with three degrees of freedom and permits limited rotational movement of the platform relative to the support frame with three degrees of freedom. The isolation array is substantially more resistant to linear movement of the platform than to rotational movement of the platform and does not rotationally constrain the platform.