Ship Launching Control for Stable Bow Azimuth Disengagement
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Solution Overview
Problem
Existing ship launching systems lack effective control of the bow azimuth during disengagement from a trailer, leading to unstable and potentially unsafe disengaging work.
Innovation Solution
A ship launching support system that includes an actuator generating propulsion and moment, with a ship control device for feedback control of the bow azimuth based on the deviation between the actual and target azimuth, ensuring stable disengagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If backward propulsion power is generated during disengagement, then the ship can be moved away from the trailer, but the bow azimuth becomes unstable and uncontrollable
Solution Approach 1:
The control device generates control commands for the actuator based on feedback from the bow azimuth detection unit. The actual bow azimuth is continuously detected and compared with the target bow azimuth, and control commands are adjusted accordingly to maintain stable bow azimuth control during disengagement operation
Solution Approach 2:
The patent replaces manual mechanical control with an automated control system that uses sensors (bow azimuth detection unit) and electronic control (control device) to manage the actuator, enabling precise bow azimuth control during disengagement
2Device complexity
If no bow azimuth control is implemented, then the system is simpler, but disengagement work becomes unstable and unsafe
Solution Approach 1:
The actuator is designed to perform multiple functions: generating propulsion power for disengagement and generating moments for bow azimuth control. This multi-functionality allows the system to achieve both disengagement and bow azimuth control without adding separate dedicated systems
Solution Approach 2:
The control device uses feedback from the bow azimuth detection unit to continuously adjust the actuator's moment generation, ensuring stable and safe disengagement while maintaining acceptable system complexity
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
Enables safe and simple launching of ships by maintaining the bow azimuth at a target position, stabilizing the disengagement process.
Implementation Method 1
an actuator having a function of generating propulsion power of the ship
Implementation Method 2
an actuator having a function of generating propulsion power of the ship and a function of generating a moment on the ship
Data Source
AI summary
A ship launching support system configured to support launching work of a ship of disengaging the ship from a trailer on which the ship is loaded, the ship including an actuator having a function of generating propulsion power of the ship and a function of generating a moment on the ship, and a ship control device configured to actuate the actuator, during the launching work of the ship, the ship control device causing the actuator to generate backward propulsion power of the ship, and executing feedback control of a bow azimuth of the ship on the basis of a deviation between an actual bow azimuth that is a bow azimuth of the ship in actuality and a target bow azimuth.