Planetary Erosion Test Rig for High-Velocity Dust Impact
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Solution Overview
Problem
Existing erosion test setups are unable to propel a large quantity of particles at high velocities while simulating the variable temperature ranges found in planetary environments, such as those on Mars and the Moon.
Innovation Solution
The development of a planetary erosion test rig (PETR) that can propel dust and/or particles at velocities up to 400 m/s and generate temperature ranges from -196°C to 200°C, using a cold spray system and temperature regulation chambers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If existing erosion test setups are used, then the test equipment is simple and easy to operate, but they cannot propel particles at high velocities (≥200 m/s) or simulate variable temperature ranges
Solution Approach 1:
The patent combines multiple subsystems (cold spray system for high-velocity particle propulsion, temperature regulation chamber for thermal control, vacuum system for particle removal, and high-speed camera for imaging) into an integrated test rig platform. This merging allows the system to achieve high particle velocities (≥200 m/s) and simulate variable temperature ranges while maintaining coordinated operation of all components.
Solution Approach 2:
The test rig is designed as a multi-functional system that can simultaneously perform high-velocity particle erosion testing and variable temperature environmental simulation. The universal platform can propel particles at velocities up to ≥200 m/s using the cold spray system while independently controlling sample temperature, thereby resolving the contradiction between functional capability and device complexity.
2Temperature
If existing erosion test setups are used, then the device is easy to manufacture, but they cannot generate wide temperature ranges (−196° C. to 200° C.) to simulate planetary environments
Solution Approach 1:
The temperature regulation system is segmented into distinct heating and cooling subsystems. The cooling function is achieved through a liquid nitrogen container that can cool the sample to −196° C., while the heating function is provided by a heating pad that can heat the sample to ≥200° C. This segmentation allows independent optimization and manufacturing of each thermal control module, making the overall system more manageable despite the wide temperature range requirement.
Solution Approach 2:
The sample holder serves as an intermediary component between the temperature regulation chamber and the erosion testing system. It contains the sample and interfaces with both the heating pad and liquid nitrogen container, enabling efficient thermal transfer while isolating the sample from direct contact with extreme temperature sources. This intermediary design simplifies the manufacturing complexity by providing a standardized interface for thermal control.
3Reliability
If high-velocity particle propulsion (≥200 m/s) is implemented, then erosion testing capability is improved, but the device complexity and operational complexity increase
Solution Approach 1:
The cold spray system is designed to automatically propel particles at high velocities (≥200 m/s) through compressed gas pressure without requiring manual intervention for each particle launch. The system self-regulates the particle propulsion process, reducing operational complexity despite the sophisticated mechanics involved in achieving high-velocity particle ejection.
Solution Approach 2:
The patent replaces traditional mechanical particle acceleration mechanisms with a cold spray system that uses compressed gas dynamics to propel particles. This substitution eliminates complex mechanical linkages and moving parts required for traditional high-velocity particle launchers, thereby improving reliability while reducing operational complexity through a more straightforward gas-pressure-based propulsion method.
4Adaptability or versatility
If integrated temperature regulation and high-velocity particle propulsion are combined, then planetary environment simulation is achieved, but the device complexity increases significantly
Solution Approach 1:
The test rig incorporates dynamic control capabilities where the temperature regulation chamber can independently adjust sample temperature while the cold spray system dynamically propels particles at high velocities. This dynamic operation allows the system to simulate various planetary environmental conditions adaptively, resolving the contradiction between versatility and complexity through coordinated dynamic control of multiple subsystems.
Data Source
AI summary
Erosion test rigs are provided for propelling dust and/or particles at high velocity and providing variable temperature ranges, as well as methods of using and fabricating the same. The erosion test rig can propel dust and/or particles at a velocity of up to 400 meters per second (m/s) and generate wide temperature ranges (e.g., from −196° C. to 200° C.) to simulate the harsh erosive conditions of planetary environments (e.g., Mars and Luna).