U - f - N

Positioning and objective

The aim of the test “Mechanics – NVH – Working point – U-f-N” is to perform NVH analysis of the machine when operating at the targeted working point defined with the following inputs values U, f, N (Line-Line voltage, Power supply frequency, Speed).

This test is available only in the beta mode. It means that all the computation process and results are not entirely qualified yet. However, this gives users, the capability to use and to evaluate this new feature by themselves.

Figure 1. “Working point – Sine wave – Motor – U, f, N” Illustration

This test give data allowing NVH prediction in early electromagnetic and design stage.

The modal analysis of the stator mechanical structure, the sound power level and the magnetic forces applied on teeth are computed and displayed.

This test helps to answer the following question: Could the machine have any risks in connection with NVH? Yes / No.

The following table helps to classify the test “Mechanics – NVH – Working point – U-f-N”.

Table 1. Positioning of the test “Mechanics – NVH – Working point – U-f-N”
Family	Mechanics - NVH
Package	Working point
Convention	#
Test	U-f-N

Subsections

Inputs

For more details, please refer to Inputs.

Thermal

For more details, please refer to Thermal.

Mechanics

For more details, please refer to Mechanics.