I - Ψ - N

Positioning and objective

The aim of the test “Mechanics – NVH – Working point – I-Ψ-N” is to perform NVH analysis of the machine when operating at the targeted working point defined with the following inputs values I,Ψ,N (Magnitude of current, Control angle, Speed).

Figure 1. “Working point – Sine wave – Motor – I, Ψ, N” illustration

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

The modal analysis of the stator mechanical structure, the radiated sound power 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 – I-Ψ-N”.

Table 1. Positioning of the test “Performance mapping – Sine wave – Motor – Efficiency map”
Family	Mechanics - NVH
Package	Working point
Convention	Motor
Test	I-Ψ-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.