How to Perform Mesh Quality Check in Hypermesh

# Introduction

## 1.1 What is Hypermesh?

During the process of engineering modeling and simulation analysis, mesh generation is a crucial step. Hypermesh is a professional finite element pre- and post-processing software developed by Altair, widely used in aerospace, automotive, and shipbuilding industries. Its powerful mesh generation capabilities and a wide array of post-processing tools enable users to efficiently and accurately complete the modeling, meshing, and post-processing analysis of complex structures.

## 1.2 The Importance of Mesh Quality Checking

In the field of engineering simulation, the quality of the model mesh directly determines the accuracy and computational efficiency of the simulation analysis. Poor quality meshes can lead to inaccurate simulation results or even failures. Therefore, it is essential to effectively check and optimize mesh quality before performing finite element analysis. Hypermesh provides a suite of mesh quality checking tools to assist users in assessing and improving mesh quality, thereby enhancing the accuracy and reliability of simulation analyses.

# Preparation

Before conducting mesh quality checks, some preparations need to be made, including installing Hypermesh software, importing models, and generating meshes.

### 2.1 Installing Hypermesh Software

First, ensure that you have successfully installed Hypermesh software. If not, follow the installation guide provided on the official website. Once installed, open the software and prepare for subsequent operations.

### 2.2 Importing Models and Generating Meshes

Before mesh quality checking, it is necessary to import the corresponding model files and generate meshes. This can be achieved through the import function and mesh generation tools in Hypermesh software. Ensure that the models are correctly imported and high-quality meshes are generated before proceeding to the subsequent checks and optimizations.

# Introduction to Mesh Quality Checking Tools

In Hypermesh, there are powerful tools available for mesh quality checking to help users evaluate and improve mesh quality. In this section, we will introduce the mesh quality checking tools in Hypermesh and common mesh quality evaluation metrics.

#### 3.1 Mesh Quality Checking Tools in Hypermesh

Hypermesh provides a series of tools for assessing mesh quality, including but not limited to the following:

- **Quality Checks Tool**: This tool allows users to quickly perform a quality check on the entire mesh and offers various indicators and visual results to help users identify problem areas.
- **Quality Index Calculator**: This tool calculates various common mesh quality evaluation metrics, such as Jacobian values, aspect ratios, and minimum angles, to help users more accurately assess mesh quality.
- **Element Quality Plot**: With this tool, users can generate heat maps of mesh qualit