Mass damper for solar tracker
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional solar tracking systems are inadequate in optimizing energy conversion from solar panels due to inefficiencies in handling mechanical vibrations and resonant frequencies, leading to potential damage from external factors like wind.
Innovation Solution
A mass damper assembly incorporating a mechanical isolator made of elastic materials like rubber or polymers, which separates the panel rail from the torque tube, causing destructive interference with natural resonant frequencies and reducing mechanical vibrations, thereby preventing oscillations and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional solar tracking systems are used, then the structure is simple and easy to manufacture, but mechanical vibrations and resonant frequencies cause potential damage and reduce system reliability
Solution Approach 1:
A mechanical isolator is introduced as an intermediary component between the torque tube and panel rails. This isolator acts as a mediator that reduces mechanical vibrations and resonant frequencies transmitted to the solar panels, thereby improving system reliability without requiring fundamental changes to the overall tracking system structure
Solution Approach 2:
The mechanical isolator changes the dynamic parameters of the system by introducing damping and isolation characteristics. This modifies the resonant frequencies and vibration amplitudes of the tracking system, reducing the harmful effects of wind-induced vibrations while maintaining the basic structural simplicity
2Stability of the object's composition
If mechanical isolators are added to reduce vibrations, then system stability improves, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The mechanical isolator is designed as a relatively simple, potentially replaceable component that can be manufactured using cost-effective materials and processes. By using simpler isolation elements rather than complex active vibration control systems, the patent maintains ease of manufacture while achieving improved stability
Solution Approach 2:
The vibration isolation function is segmented into discrete mechanical isolators positioned at specific locations between the torque tube and panel rails. This segmentation allows each isolator to be manufactured independently using standard processes, maintaining ease of manufacture while collectively providing system-wide stability improvements
3Productivity
If the tracking system is tuned to prevent resonance, then energy conversion efficiency improves, but the system becomes more complex and difficult to adjust
Solution Approach 1:
The mechanical isolators provide passive vibration reduction that automatically adapts to operating conditions without requiring active control or complex tuning mechanisms. The isolators self-adjust to the system's dynamic characteristics, improving energy conversion efficiency by reducing vibration losses while maintaining simple, maintenance-friendly architecture
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 effectively reduces mechanical vibrations and oscillations, enhancing the stability and efficiency of solar tracker systems by selectively tuning the tracking system to prevent resonance-induced failures, thus improving energy conversion and panel longevity.
Implementation Method 1
causing destructive interference with natural resonant frequencies and reducing mechanical vibrations
Implementation Method 2
A mass damper assembly incorporating a mechanical isolator made of elastic materials like rubber or polymers
Implementation Method 3
reducing mechanical vibrations, thereby preventing oscillations and damage
Data Source
AI summary
In an example, the system has a mechanical isolator comprising an elastic material configured to separate the panel rail from the torque tube cause destructive interference with a natural resonant frequency of the system without the mechanical isolator to reduce a mechanical vibration of the system.