Magnetic Induction Positioning for Hypergravity Anchor Testing
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Solution Overview
Problem
The difficulty in accurately measuring the motion of dynamic penetration plate anchors during installation in natural soil due to the invisibility of soil conditions.
Innovation Solution
A testing equipment and method utilizing a magnetic induction positioning system, combined with a test model box, anchor release device, and loading and measuring device, to simulate the installation and service process of dynamic penetration plate anchors, allowing for real-time measurement of six-degrees-of-freedom motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If natural soil test is conducted to measure anchor motion, then the test reflects real soil conditions, but the motion information of the anchor cannot be accurately measured due to soil invisibility
Solution Approach 1:
The patent introduces a magnetic induction positioning system as an intermediary measurement tool. A magnetic sensor is installed on the anchor, and a magnetic source is placed in the soil, allowing indirect measurement of anchor motion through magnetic field interaction without direct visual observation of the anchor in the soil medium.
Solution Approach 2:
The patent replaces traditional mechanical or visual measurement methods with a magnetic field-based positioning system. This substitution enables non-contact, non-intrusive measurement of anchor six-degree-of-freedom motion information while the anchor is embedded in the soil.
2Device complexity
If traditional measurement methods are used in natural soil, then the setup is simple, but the measurement precision is insufficient due to soil obscuration
Solution Approach 1:
The magnetic induction positioning system serves as an intermediary that penetrates the soil medium to transmit measurement signals. The magnetic field can pass through the soil without being blocked, enabling precise trajectory and orientation measurement despite the obscuring effect of the soil.
Solution Approach 2:
The patent changes the measurement parameter from visual/optical detection to magnetic field detection. By utilizing magnetic field properties that are not attenuated by soil, the system achieves precise measurement of anchor position, orientation, and six-degree-of-freedom motion information.
3Loss of information
If dynamic penetration testing is performed to evaluate anchor performance, then comprehensive performance data is obtained, but the complexity of measuring multiple parameters (impact speed, penetration depth, trajectory, orientation) increases
Solution Approach 1:
The magnetic induction positioning system is designed as a multi-functional measurement device that simultaneously captures six-degree-of-freedom motion information, including position, orientation, impact speed, and penetration depth. This universal measurement approach consolidates multiple measurement functions into a single integrated system.
Solution Approach 2:
The magnetic field-based positioning system acts as a universal intermediary that can measure all six degrees of freedom of anchor motion through a single measurement mechanism, avoiding the need for multiple separate measurement devices and reducing overall 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 accurate tracking of the anchor's trajectory, orientation, and velocity, solving the challenge of measuring penetration depth, dragging trajectory, and bearing capacity during the 'keying' process, and providing valuable data for the development of deep-sea anchoring systems.
Implementation Method 1
the magnetic induction positioning system can track all the six-degrees-of-freedom motion of the dynamic penetration plate anchor in real time
Data Source
AI summary
A testing equipment of dynamic penetration plate anchor for a hypergravity centrifuge includes five parts: a test model box, a magnetic induction positioning system, an anchor release device, a loading and measuring device and a dynamic penetration plate anchor. A test foundation is disposed in the test model box, the top part of the test model box along a lengthwise direction is provided with a slide rail of model box, the anchor release device and the loading and measuring device are installed on the slide rail of model box, and the magnetic induction positioning system is installed on the anchor plate of the dynamic penetration plate anchor and the test model box. It can solve the problem that movement information of the anchor body is difficult to obtain due to opaque soil, and can accurately and effectively carry out tests of dynamic penetration plate anchors of hypergravity centrifuges.