Simulation Forging Ship Shaft

CAD Forging Ship Shaft meshing groups in NOGRID's COMPASS

Figure 1: CAD and surface mesh created in NOGRID's COMPASS

Forging ship shaft GUI setup and initial conditions in NOGRID points CFD software

Figure 2: Setup the Forging Ship Shaft case in the GUI

Forging ship shaft simulation GUI results in NOGRID points CFD software

Figure 3: Results view of the Forging Ship Shaft case in NOGRID points' GUI

Animation forging ship shaft in NOGRID points CFD software

Figure 4: Animation Forging Process

Figure 5: Real Forging Process (see: youtu.be/AgpGXSAS7Cs)

The simulation forging of a ship shaft can perfectly be performed with NOGRID points CFD software.

Manufacturing process forging: classification

Forging is a manufacturing process in which metal is shaped by localized compressive forces. It can be classified based on the temperature at which it is performed: cold, warm, or hot forging.

In this case study the hot metal workpiece is forged using two opposing hammers. The metal is computed as a viscoplastic material, with the viscous part being dominant. As shown in Figure 4, the initial shape of the workpiece differs significantly from the final product - a ship shaft. Transforming the metal into its final geometry requires numerous of forging steps (or hammer blows).

Unlike purely elastic materials, viscoelastic materials exhibit both elastic and a viscous behaviour. The viscosity of a viscoelastic material gives the body a strain rate dependence over time. Purely elastic materials do not dissipate energy when a load is applied and then removed. However, a viscoelastic material dissipates energy when a load is applied and then removed. Viscoelastic behavior has elastic and viscous components modeled as linear combinations of springs and dampers, respectively.

Simulation of forging processes with NOGRID points CFD software

If you want to compute forging proccesses then our meshless CFD software NOGRID points is a great choice. Based on the geometrical model which can either be imported from your CAD or created with our CAD preprocessor COMPASS you can generate a computer model of a specific geometry in a very short time (compared to mesh-based methods) and see its thermal characteristics in advance.

This model can give you a better understanding of the forging process and helps to improve your process regarding efficiency and costs. So, NOGRID points can perfectly be used for designing and problem solving for all kinds of forging. The thermal cooling and homogenizing, the temperature gradients and the cooling/heating rate can be predicted during the entire forging process. NOGRID points helps to understand the flow or displacements by visualization of the mass, momentum and heat transfer.

Capabilities of NOGRID points CFD software

NOGRID combines the capability to handle stress-strain problems, including moving parts within the domain, and allows the simulation of any conceivable geometry and operating modes such as

fully 3D computation solving the complete viscoelastic equations
easy and intuitive setup for thermal analysis cases
freely definable material properties by equations or curves
evaluation of chemical reactions and corresponding heat source terms
open or closed domains, including inflow and outflow areas
moving of parts and boundaries

Whitepaper Nogrid points Technology

Why choose Nogrid?

NOGRID provides professional CFD software for the simulation of fluid flow, heat and mass transfer, and chemical reactions. Its efficient modelling workflow helps engineers analyse flow behaviour, evaluate designs and make informed decisions without creating a conventional volume mesh.

Faster model preparation

With NOGRID, only the geometry boundary needs to be meshed. The finite points inside the fluid domain are generated automatically according to user-defined settings, both at the start of the simulation and during the calculation.

This approach reduces preprocessing effort and makes it easier to prepare complex geometries and cavities for simulation.

Efficient CFD workflow

The modelling process follows four straightforward steps:

Build the geometry. Mesh the boundary. Define the simulation. Start the calculation.

NOGRID is designed to provide short computation times, including for applications involving complex cavities. Engineers can use the resulting data to examine flow distribution and other relevant flow characteristics.

Better insight into fluid-flow processes

CFD solves the fundamental equations governing fluid flow. NOGRID software enables engineers to predict and analyse the behaviour of fluids and related physical processes before or alongside physical testing.

The simulation results can support:

evaluation and comparison of design alternatives
optimisation of construction and operating parameters
improved planning reliability
reduction of development time and testing effort
faster progression from design to market or operation

Steps from geometry generation to simulation results

TRAINING

Our two-day training courses teach participants how to set up, run and evaluate simulations efficiently with NOGRID CFD software. The courses include practical guidance for handling different types of simulation cases.

For more details please refer to Training Courses →

Technical Support

Professional support is available from the beginning of your work with NOGRID. Our technical team assists users by telephone and email with software operation, case setup and simulation-related questions.

For more details please refer to Software Support →

Simulation Service

When internal time, expertise or resources are limited, NOGRID can support your project with individual numerical simulation services. Our engineers develop and evaluate CFD models based on the specific requirements of your application.