> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ntop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Natural Frequency Response

Create a Design Response that measures the smallest natural frequency of the FE model for a set of boundary conditions. The response is computed by f = min\_{i=1..N}(|f\_i - f\_0|), where f\_i represents the N smallest natural frequencies obtained by solving a linear modal finite element analysis, and f\_0 is an offset value.

### Inputs

| Name             | Type                                                                                | Description                                                                         |
| ---------------- | ----------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------- |
| Load case        | [Boundary Condition List](../../../../block-documentation/types/boundary-condition) | Load case for the design response.                                                  |
| Number of modes  | [Integer](../../../../block-documentation/types/integer)                            | Number of modes that will be searched for and included in the response computation. |
| Frequency offset | [Scalar](../../../../block-documentation/types/scalar)                              | Frequency offset used in the design response computation.                           |

### Outputs

| Type                                                                     |
| ------------------------------------------------------------------------ |
| [Design Response](../../../../block-documentation/types/design-response) |