Charged Lunar Regolith Collection Device for Rover Wear Reduction
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Solution Overview
Problem
Lunar rovers on the moon's surface kick up abrasive and charged lunar regolith, which can adhere to and damage critical components, causing wear and tear and posing a challenge for effective collection and neutralization.
Innovation Solution
The implementation of electrically charged collection devices with mesh plates and a power supply that apply voltage differences to attract and neutralize lunar regolith, utilizing a controller to adjust voltage based on detected polarity and density, and a movable arm to position the collection device effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If lunar rovers move on the moon's surface, then exploration and sample collection are enabled, but lunar regolith is kicked up and adheres to critical components causing wear and damage
Solution Approach 1:
The patent applies electrical charge to collection devices to attract charged lunar regolith particles, converting the harmful adhesion problem into a beneficial collection mechanism. The electrostatic attraction enables active capture of regolith that would otherwise damage components, transforming a harmful interaction into a controlled collection process.
Solution Approach 2:
The patent replaces mechanical collection methods (such as physical barriers or brushes) with an electrical field-based system. By applying voltage to collection devices, the system uses electrostatic forces instead of mechanical contact to capture regolith particles, reducing wear on collection devices and enabling more effective regolith removal.
2Reliability
If collection devices are positioned close to critical components, then regolith collection effectiveness is improved, but device complexity and space constraints increase
Solution Approach 1:
The patent employs movable collection devices that can be dynamically positioned relative to critical components. The collection devices can be moved into optimal positions during regolith collection operations and repositioned when not in use, allowing effective collection without permanent complex positioning infrastructure.
Solution Approach 2:
The patent divides the collection system into separate, modular components that can be independently positioned and operated. This segmentation allows collection devices to be placed close to components during operations but separated when not needed, reducing overall system complexity while maintaining collection effectiveness.
3Productivity
If voltage difference is increased to attract more lunar regolith, then collection efficiency is improved, but energy consumption increases
Solution Approach 1:
The patent employs periodic or intermittent application of voltage to collection devices rather than continuous operation. The power supply is activated during regolith collection operations and deactivated when not needed, reducing overall energy consumption while maintaining collection efficiency during active periods.
Solution Approach 2:
The patent dynamically adjusts the voltage parameter based on collection needs and environmental conditions. The power supply can modulate voltage levels to optimize regolith attraction while minimizing energy consumption, using higher voltages only when and where regolith presence is detected or collection is most needed.
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 attracts and neutralizes charged lunar regolith, preventing it from interacting with critical components and reducing wear, while allowing for efficient collection and disposal.
Implementation Method 1
The power supply is electrically connected to the at least one plate of the collection device and configured to apply a voltage difference across the at least one plate, thereby attracting lunar regolith into the at least one collection device
Data Source
AI summary
A lunar rover includes a body, at least one collection device configured to collect lunar regolith, and a power supply. In some examples, the collection device includes at least one wall defining an opening and at least one plate positioned in the opening. The power supply is configured to apply a voltage difference across the collection device. In some examples, the lunar rover further includes a movable arm including an end connected to the body and another end connected to the collection device, at least one polarity sensor configured to detect a polarity of lunar regolith adjacent to the lunar rover, and a controller configured to control the power supply to apply a voltage difference across the collection device based on the detected polarity of the lunar regolith adjacent to the lunar rover. Other examples of lunar rovers are also disclosed.