FE Analysis of a grinding machine

The development of new functionalities of existing machine platforms, as well as the conception of innovative machine-tools can be accelerated by reducing the number of prototypes required prior to the final series release to the market. The mechanical behavior of a grinding machine depends to a great extent on the vibration behavior of single components, selected assemblies and the entire machine. The presence of critical eigenfrequencies and modes inside the rotational speed range of the spindle must be avoided to guarantee the precision of the treatment.

FE Analysis of a grinding machine

Task

The development of new functionalities of existing machine platforms, as well as the conception of innovative machine-tools can be accelerated by reducing the number of prototypes required prior to the final series release to the market. The mechanical behavior of a grinding machine depends to a great extent on the vibration behavior of single components, selected assemblies and the entire machine. The presence of critical eigenfrequencies and modes inside the rotational speed range of the spindle must be avoided to guarantee the precision of the treatment.

Solution Method

In order to achieve in the first real prototype of the grinding machine a behavior so close as possible to the final release to the market, several parametric studies must be carried out on the virtual prototype of the 3D CAD model, considering the spindle first, followed by the entire assembly of the machine. To this end, FE analyses carried out with ANSYS can help in comparing different design variants and minimize the number of iterations in the real prototype. A modal analysis can help in excluding the presence of critical vibration modes inside the operating speed of the rotating parts. Furthermore, mechanical stresses in the structure can be assessed and compared with the maximum allowable material limits. The influence of mechanical tolerances on the overall behavior of machine-tools in form of a robust design analysis can be investigated in order to guarantee the specified precision of the treatment to the end customer.

Benefit to the customer

The combination of mechanical design and FE simulation makes a high quality and efficient development process possible. The know-how required for the CAE driven development process was transferred from CADFEM to our customer AGATHON to allow in-house efficient development of grinding machines.

FE Analysis of a grinding machine
Modal analysis of a grinding machine assembly
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CADFEM (Suisse) AG

Employees
28
CAE-Engineers
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Founded
1985