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General Workflow - Radiated Sound Analysis of vibrating component using NVHD
Hello everyone, I am working on a project that involves analyzing the sound radiation from a vibrating fiberglass component. Therefore, I want to use Altair NVH Director. Here is some background information: * The component is part of a vehicle assembly. * It consists of two parts that are bolted together and vibrate…
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Does the XYZ coordinates change for 1D elements, What does this based on?
In my understanding, When modelling a 1D bar element, the XYZ coordinates are based on the System collectors. As you can see the common XYZ axis in the bottom left and the XYZ axis on the 1D element. Does this mean when I'm looking at results(for example shear force at each axis (X,Y&Z)) do I have to assume the Y result…
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OptiStruct Error #2866
Dear all, I want to use measured and filtered acceleration data in the time domain as an excitation load for a model in Squeak & Rattle Director. Therefore, the data have been processed using MATLAB and then have been stored as a .csv file. Furthermore, the sample rate and cutoff frequencies have been adopted to Hyperworks…
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High Frequency NVH in NVH Director
The help for the NVH director states for the High Frequency NVH ribbon: "This option is only available if you have an environment variable set. " I need additional context, or explanation for this. Does the help mean, that specific license tokens are needed, or do we have to really set an environmental variable manually?
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How to change the directory for temp files/scratch files ?
Hello, I am running NVH job on optistruct solver but I am getting the error *** FATAL ERROR # 8111 *** vfileio:: Failed write for file[15] . I think this is because of temp files/scratch files. I want to change the directory for these files from the local drive to the network drive. What commands do I have to input while…
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NVH Director and SEAM Contents for Hyperworks 2022.3 Release
Below are some of the highlights in the HyperWorks 2022.3 release: * Enhancements in Deterministic optimization * A Complete, Seamless Integrated workflow for optimization set-up and results processing * Automatic update of Assembly with optimized values of Design Variables with two approaches * Using postprocessing…
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Can anyone share the model file to perform NVH simulation and root cause analysis
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Design Explorer not just for HyperWorks anymore. Plus, 2022.1 enhancements.
HyperWorks Design Explorer Exploration tools like HyperStudy have been available for some time. With the release of the Design Explorer (DE) in HyperWorks 2020, an exploration workflow that was seamlessly integrated into the native modeling and visualization environment was finally available. The main characteristics of DE…
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NVHD Director Contents for Hyperworks 2022.1 Release
The HyperWorks 2022.1 release has many new advanced features and enhancements for NVH engineers specifically full vehicle optimization workflow. Watch the video below to find out what's new in HyperWorks 2022.1 and get a tour of a very powerful, efficient and end-to-end workflow for deterministic optimization for…
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exporting the file
how to export the stiffness matrix file in .kss file format from optistruct to kisssoft software?
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NVH Director and SEAM Contents for Hyperworks 2022 Release
The HyperWorks 2022 release has many new advanced features and enhancements for NVH engineers which cover complete frequency range of analysis. Watch the video below to find out what's new in HyperWorks 2022 and get a tour of SEAM's highly sophisticated next-generation user interface which can be used to create, solve and…
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Simple Demo of ERP Analysis, Post-processing , Diagnostic and Optimization
ERP Key Input Data ERP Post-Processing ERP Diagnostic ERP Optimization Typical optimization problem: * Design Space: topology, topography, size, freeshape, shape design variables are supported * Constraint: mass< xx kg * Target: MINMAX of ERP response in a frequency range of interest across multiple load cases
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Element Type preferred for Vibration and crash Analysis
Which type of element is preferred for meshing in case of Vibration as well as Crash analysis ? Currently i am using tria element for vibration and quad element for crash analysis. Could anyone give me an exact technical answer for use of this elements in respective analysis, Why not we are using Quad or mixed type for…
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NVH director tutorial
How I can use NVH director software? and I wanna solve about some noise, vibration and harshness problem, so How do I do? Thank guys.
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NVH-utilitiesの使用方法 - Model Correlation
NVH-utilitiesの使用方法 - Model Correlation 実験結果とCAE解析結果のモードシェイプの相関性を確認するためにMAC値が用いられます。そのMAC値を計算/確認できる機能、Model Correlationの使用方法を解説いたします。
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NVH-utilitiesの使用方法 - Modal FRF
NVH-utilitiesの使用方法 - Modal FRF 固有値解析の結果から周波数応答関数を合成できる便利な機能、Modal FRF の使用方法を解説いたします。
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NVH-utilitiesの使用方法 - Grid Participation
NVH-utilitiesの使用方法 - Grid Participation Grid寄与解析は、NVH解析のポスト処理で頻繁に行われます。その解析結果を表示/スタディできる機能 Grid Participation の使用方法を解説いたします。
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NVH-utilitiesの使用方法 - Modal/Panel Participation
NVH-utilitiesの使用方法 - Modal/Panel Participation モード寄与、パネル寄与解析は、NVH解析のポスト処理で頻繁に行われます。その結果を表示/スタディできる機能 Modal/Panel Participation の使用方法を解説いたします。
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Altair HyperWorks 2021 NVH Director Best Practices and Workflow Overview
Altair’s Noise Vibration and Harshness Director is the most advanced full vehicle assembly building framework on the market. It enables the implementation of global NVH best practices while covering the entire NVH workflow from model setup, assembly management to postprocessing. Learn more at…
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How can I Create a Patch Manually for Separate Volumes? Ref: NVH-1000 tutorial
The NVH-1000 tutorial, step 9, asks me to create a patch manually for separate volumes but gives no instructions on how to do this. I've tried a few things without success. Could someone walk me through this? For Altair: I think this tutorial needs updating.
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Export elements from pfgrid results?
Hi. How Do i do to export elements from pfgrid results? I need export elements display like as current value: 0.3 and legend max:0.5. Results between 0.3 and 0.5 only.