One of our customers received an order to develop a control cabinet that is used in trains. Here, there are high vibration and shock loads that have to be proven in a vibration test according to the current standards.
The project was under time pressure from the very beginning. Therefore, the company decided to go into production already after the first design stages of the frame.
According to the customer's specifications, the lowest natural frequency was to be greater than 25 Hz.
Our task as an external calculation service provider was to provide computational verification for the almost finished design, or to identify and optimize small weak points.
The investigation showed that the first natural frequency of the control cabinet was about 13 Hz.
Vibration loads and shock loads led to significant stress exceedances.