Omnidirectional Mooring Device With Rotary Damper and Spring System
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Solution Overview
Problem
Traditional mooring devices face challenges in maintaining stability of vessels and platforms, especially under conditions of tidal fluctuation and severe winds and waves, as they struggle to provide adequate omnidirectional restoring forces.
Innovation Solution
A mooring device with a support frame, free guide rollers, springs, and a rotary damper system that provides omnidirectional restoring forces through elastic deformation and energy dissipation, allowing for adjustment of the platform's vertical equilibrium position and quick release in extreme conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional cables are used to directly tie the vessel to the dock, then the device complexity is low, but the stability of the platform under tidal fluctuation and severe conditions deteriorates
Solution Approach 1:
The mooring system is segmented into multiple independent functional components: cables for connection, springs for elastic restoring force, dampers for energy dissipation, and guide rollers for directional control. Each component performs a specific function, and their combination provides comprehensive stability without requiring an overly complex integrated structure.
Solution Approach 2:
The mooring device transitions from a static cable-tie system to a dynamic system with movable parts including guide rollers that can rotate and springs that can extend and compress. This dynamic capability allows the system to adapt to tidal fluctuations and wave motions while maintaining platform stability.
2Reliability
If a complex mooring system with multiple components is implemented, then the stability and omnidirectional restoring force are improved, but the device complexity increases
Solution Approach 1:
The guide rollers serve multiple functions: they guide the cables, provide rotational freedom for omnidirectional movement, support the mechanical load, and enable the spring-damper system to function. This multi-functionality reduces the need for separate components, thereby improving reliability without proportionally increasing complexity.
Solution Approach 2:
The guide rollers act as intermediaries between the cables and the spring-damper system, transferring forces and enabling coordinated operation of all components. This intermediary mechanism ensures reliable force transmission and coordination while maintaining a relatively simple overall structure.
3Adaptability or versatility
If the platform needs to adapt to tidal fluctuations, then the adaptability is improved, but the stability maintenance becomes more difficult
Solution Approach 1:
The spring-damper system allows the mooring device to change its physical parameters (length, force, energy dissipation) in response to tidal fluctuations. The springs adjust their extension/compression to accommodate vertical movements, while dampers adjust energy dissipation to maintain stability during these parameter changes.
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 mooring device ensures stability and secure mooring by adapting to tidal changes and extreme conditions, providing an omnidirectional restoring force that maintains platform stability and facilitates safe and quick release during severe weather.
Implementation Method 1
provides omnidirectional restoring forces through elastic deformation and energy dissipation
Implementation Method 2
provides omnidirectional restoring forces through elastic deformation and energy dissipation
Data Source
AI summary
The present invention provides a mooring device capable of providing an omnidirectional restoring force. A support frame is provided on a dock. Two free guide rollers are provided at vertical corresponding positions that are respectively below a cross arm of the support frame and above the dock. A rotary damper is provided in the middle of a longitudinal portion of the support frame that is perpendicular to the dock. The two free guide rollers are respectively wound with a cable. The cable is fixed to a platform arm, and the platform arm is connected to a platform. An end of each cable is connected to a spring, and the other end of the spring is connected to a chain wound on a sprocket of the rotary damper.