PDMS 3D models can provide engineering teams with a clear digital representation of existing industrial metal structures. When combined with 3D laser scanning and as-built data, these models can be used to review existing conditions, compare structures with original design information, and identify visible changes or deformation.

Deformation Analysis

3D laser scanning captures the current geometry of an existing metal structure as point cloud data. This information can be compared with project documentation, existing design models, or reference geometry to identify differences between the designed and current condition.

The comparison can help engineering teams locate areas with displacement, deformation, or alignment differences that may require further engineering assessment.

Measuring and Comparing Existing Conditions

One method for evaluating deformation is to compare the original 3D design model with an as-built 3D model created from point cloud data.

The point cloud provides detailed information about the current geometry, while the PDMS model provides a simplified and structured representation that is easier to review and manage within an engineering workflow.

Measurements and deviations can then be documented and provided to the engineering team for further evaluation.

Simplifying Large 3D Data

Point clouds and polygon mesh models can contain large amounts of data, especially when scanning complete industrial facilities or large metal structures.

For some engineering applications, working directly with this amount of data can make file management and model handling more difficult. Creating a simplified PDMS or CAD model from the scan data can provide a more practical representation of the existing structure.

The level of detail can be adjusted according to the project requirements, allowing teams to work with the information they actually need.

Supporting Structural Analysis

As-built 3D models can also provide accurate geometry for further structural analysis. When required, relevant model data can be prepared for use with specialized engineering and structural analysis tools.

Stress, loads, displacement, and structural behavior should be evaluated using appropriate engineering analysis methods and software. The 3D laser scan and as-built model provide valuable information about the existing geometry and condition that can support this process.

From Laser Scanning to Engineering Data

Combining 3D laser scanning, point cloud processing, and PDMS or CAD modeling creates a practical workflow for documenting and reviewing existing industrial metal structures.

The process can include capturing the existing structure, processing and registering point cloud data, creating an as-built 3D model, comparing it with available design information, and documenting identified geometric differences.

At IN3D Technology, we use 3D laser scanning and engineering 3D modeling to provide accurate digital data for industrial projects. These models can support deformation inspections, existing-condition documentation, design comparisons, maintenance planning, and further engineering analysis.