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FREQ1 - Altair

FREQ1. Bulk Data Entry Defines a set of frequencies to be used in the solution of frequency response problems by specification of a starting frequency, frequency increment, and the number of increments desired. FREQ2

FREQ1 - Autodesk Knowledge Network

FREQ1. Frequency List, Alternate Form 1 . Description: Defines a set of frequencies to be used in the solution of frequency response problems by specification of a starting frequency, frequency increment, and the number of increments desired. Format: Example: Field Definition Type ...

FREQ1 - help.altair.com

Comments. FREQ1 entries must be selected with the I/O Options or Subcase Information command FREQUENCY = SID.; The units for F1 and DF are cycles per unit time.; The frequencies defined by this entry are given by f i = F1 + DF * (i -1). where i = 1 to (NDF + 1).. All FREQi entries with the same set identification numbers will be used.

HyperWorks仿真介绍——频响分析 - 知乎 - 知乎专栏

注:FREQ输入的是任意的频率点,FREQ1输入的是线性分布的频率点,FREQ2输入的是对数分布的频率点,FREQ4可以加密共振点处的分析频率分布。 图 创建分析频率节点. 6. 创建模态分析方法. 按Ctrl+F,输入eigrl,确定,在eigrl载荷集中的V2上填入2000。

SPFREQ - Ansys

FREQ1 should be greater than zero, and values must be in ascending order. Notes. The spectrum values are input with the SPVAL command. A separate SPFREQ command must be used for each table defined. Frequencies must be in ascending order. Repeat SPFREQ command for additional frequency points. Values are added after the last nonzero frequency.

Frequency Response Process - Altair

Set up subcases with unit inputs. In practice, this is common to generate vibration and noise sensitivity results. Figure 21. From the menu bar, click Tools > Freq Resp Process > Unit Input Frequency Response.; In the Select Solution Type task, select a solution method.

OS-HM-T: 1305 Modal Frequency Response Analysis of a Flat Plate

For Name, enter freq1. Click Color and select a color from the color palette. For Card Image, select FREQi from the drop-down menu. Select the FREQ1 option and verify the NUMBER_OF_FREQ1 field is set to 1. If needed, click and enter: F1 = 20.0. DF = 20.0. NDF = 49. This provides a set of frequencies beginning at 20.0 incremented by 20.0 with 49 ...

FREQ - ansyshelp.ansys.com

Notes. Repeat the FREQ command for additional frequency points (100 maximum). Values are added after the last nonzero frequency. If all fields (FREQ1-- FREQ9) are blank, erase SV vs. FREQ tables.Frequencies must be in ascending order. Spectral values are input with the SV command and interpreted according to the SVTYP command. Applies only to the SPRS (single-point) option of the SPOPT command.

OS-T: 1305 Modal Frequency Response Analysis of a Flat Plate - Altair

The default files written to the directory are: flat_plate_modal_response.html HTML report of the analysis, providing a summary of the problem formulation and the analysis results. flat_plate_modal_response.out OptiStruct output file containing specific information on the file setup, the setup of your optimization problem, estimates for the amount of RAM and disk space required for the run ...

Frequency Response Analysis - Altair

OptiStruct is a proven, modern structural solver with comprehensive, accurate and scalable solutions for linear and nonlinear analyses across statics and dynamics, vibrations, acoustics, fatigue, heat transfer, and multiphysics disciplines.

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