As a digital imaging-relatedDICTechnologyCorrelated Solutions A digital image processing algorithm has been developed, featuring rapid processing.3D Processing Speed——VIC-3D Real-Time ModuleDICThe direction of testing methods is towards real-time measurement and real-time monitoring.
All-in-One Real-time Measurement Module Achieved2-10Hz Our real-time data processing speed, per second100,000A data point includes all information of surface mechanical behavior, three-axis displacement, in-plane strain, and calibration of different strain tensors, such as: Lagrange strain tensor, true strain, engineering strain.Mises AdaptabilityTresca Adaptability.
National Aeronautics and Space Administration (NASA)NASAEngineering and Safety CenterNESCTo address the weight reduction issue of the new-generation launch vehicle, the "shell buckling strength factor" of the fuel tank is proposed as a verification benchmark for the digital model test of the launch vehicle.VIC-3D Real-Time Real-time Module and Multi-System Array Fusion Modules serve as a critical testing method, focusing on measuring the storage body.360°Full-field deformation and real-time data monitoring.
Trial Overview:
For most of us, the cracking of a soda can is a familiar scene. But what if we need to simulate the compressive load of a can, and this "soda can" is large in diameter and complex in structure? That's NASA Challenges Faced by Engineers.
The cylindrical fuel tanks bear loads similar to those of "soda cans." Their strength under elevated loads is referred to as the "shell buckling instability factor" or SBKF Early...SBKF The model is1960Year-developed. Today, finite element and other modeling technologies are highly mature, offering more accurate models. To further verify the accuracy and reliability of digital models and optimize structural design, achieving weight reduction and lightweighting requirements, full field360°It is crucial to have real-time monitoring and measurement of the shell's buckling strength factor.
NESC Chief Researcher Mark leads the project on Shell Buckling Strength Factor·SchillerbergMark Hilburger"We can confidently apply new materials and technologies to updated designs, contributing safer, lighter, and more effective launch vehicles to the space industry, only by conducting thorough tests and analysis to study the fundamental principles of buckling."
2011Year3No Chinese content provided.23No Chinese content provided. Please provide the news content to be translated.NASA We conducted a milestone test on the God of War V fuel tank's crush deformation under load. The diameter of the spacecraft fuel tank...8.4Mill, high6.1The company conducted a load test on the fuel tank above to observe the stress conditions on the entire tank surface.
Due to the vast size of the fuel tank, it is extremely difficult to observe the strain across the entire surface. With the unpredictable nature of the deformed areas, to detect regions of stress concentration and deformation, full-field real-time observation is necessary. Even if the surface of the fuel tank is covered with standard strain gauges for measurement, they only cover a single point's strain condition, and thus cannot truly cover the entire surface of the tank, failing to achieve full-field measurement in the true sense.
NASA Utilized Digital Image CorrelationDICThe method, utilizing VIC-3D The full-field strain measurement system's full-field real-time observation module and multi-system array have achieved full-field measurement in the truest sense and also implemented full-field real-time monitoring.
Purpose of the Test:
Measure the full-field displacement and strain characteristics of the shell, integrate with other sensors to analyze the buckling strength factor of the shell model, further verify the accuracy and reliability of the carrier rocket digital model. Meanwhile, use the experimental data as a crucial reference to optimize the shell's structure, achieving the overall lightweight requirements of the carrier rocket to reduce costs.
Trial Challenges:
1.Large observation area, fuel tank diameter8.4Miller, High6.1Millet
2.Unpredictable areas of concentration and deformation require full-site observation.
3.Critical testing areas require real-time measurement and monitoring of displacement changes.
4.The instantaneous failure location feature is crucial, requiring real-time measurement.+High-speed collection in progress.
VIC-3D Solution:
1.The multi-system array achieves full-spectrum observation of the fuel storage facility.2.Real-time monitoring module fully implemented for fuel storage tank testing throughout the process.3.Real-time monitoring of the entire deformation and displacement changes during the test process to ensure safety and sustainability.4.Real-time measurement through high-speed and static multi-system full-field monitoring+High-speed collection in progress.
Test Results and Significance:
VIC-3D Real-Time Real-time Module IntegrationVIC-3D Full Field of View Array Module, truly solving real-time monitoring and measurement of fuel storage360°Observing displacement and deformation challenges from all angles plays an extraordinary role in shell buckling strength factor tests. As isNASA The engineer leading the test stated that they were unable to predict the exact moment of buckling initiation and the precise characteristics of the failure.VIC-3D Live All the Time Real-Time AndVIC-3D Array SystemFusionEffectively addresses the uncertainty of buckling and failure locations.
VIC-3D Optical testing systems also serve as further optical testing methods.NASA LanleyLangleyLaboratory, Guidelines for Measuring Displacement and Deformation of Large Aerospace Equipment
