Wave Power Rotor Resonance Tuning Spring
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Solution Overview
Problem
Conventional wave-activated power generation devices face challenges in increasing rotational inertial mass effect, which limits power generation efficiency due to direct input of float movement without an elastic body.
Innovation Solution
Incorporating a tuning spring and a rotor with a significant rotational inertial mass effect, connected through a drive part with a supporting spring, to resonate with the float's oscillation, thereby enhancing power generation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the float movement is directly input into the conversion mechanism without an elastic body, then the device complexity is reduced, but the rotational inertial mass effect cannot be increased
Solution Approach 1:
The patent introduces a tuning spring as an intermediary elastic body between the float and the conversion mechanism. This tuning spring serves as a mediator that transmits the float's oscillatory motion while enabling the system to achieve significant rotational inertial mass effect through resonance, thereby resolving the contradiction between structural simplicity and power generation capability.
Solution Approach 2:
The patent utilizes mechanical vibration resonance by tuning the natural frequency of the tuning spring to match the wave frequency. This resonance amplifies the rotational inertial mass effect of the conversion mechanism, allowing the system to generate significantly more power without substantially increasing structural complexity.
2Productivity
If a tuning spring is introduced to resonate with the float oscillation, then the power generation efficiency is improved, but the device complexity increases
Solution Approach 1:
The tuning spring is designed to resonate at the same frequency as the float oscillation caused by waves. This resonance phenomenon amplifies the motion transmission to the conversion mechanism, significantly improving power generation efficiency while adding only a single elastic component to the system.
Solution Approach 2:
The patent optimizes the spring constant and length of the tuning spring to achieve resonance at specific wave frequencies. By adjusting these parameters, the system can adapt to different wave conditions and maximize power generation efficiency without requiring complex control mechanisms.
3Productivity
If the rotational inertial mass is increased to enhance power generation, then the power generation efficiency is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
Instead of physically increasing the inertial mass of the conversion mechanism, the patent uses resonance amplification through the tuning spring to achieve the same effect. This approach maintains the simplicity of the conversion mechanism while still achieving high rotational inertial mass effect through dynamic resonance.
Solution Approach 2:
The patent achieves enhanced power generation by optimizing the parameters of the tuning spring (spring constant, length, mass) rather than increasing the mass of the conversion mechanism itself. This parameter optimization approach allows for easier manufacturing and assembly while achieving the desired rotational inertial mass effect.
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 solution significantly increases rotational inertial mass, leading to improved power generation efficiency by causing the rotor's inertial mass to resonate with the float's oscillation, maintaining high efficiency even with varying environmental conditions.
Implementation Method 1
a tuning spring (41) having a predetermined spring constant kt
Implementation Method 2
causing the rotor's inertial mass to resonate with the float's oscillation
Implementation Method 3
a rotor (32) having a significant rotational inertial mass effect
Data Source
Figure 1~2
Figure 3
Figure 4~5A
AI summary
A wave-activated power generation device is disclosed. The device includes a float configured to be capable of floating in the sea; a rotor configured to generate a rotational inertial mass effect; a power generator configured to generate power based on rotation of the rotor; a first elastic body; and a drive part configured to connect the rotor with the float via the first elastic body so as to rotate the rotor along with movement of the float.