Search found 20 matches

by liushun
Tue Dec 16, 2025 7:08 am
Forum: Get Started Discussion
Topic: Issues in 2D Simplification of 3D SSI Model: Unexpected Fluctuations in Acceleration Response
Replies: 3
Views: 343

Re: Issues in 2D Simplification of 3D SSI Model: Unexpected Fluctuations in Acceleration Response

Hi again,

I’d like to ask another question about damping coefficients. At the moment, all the models I build are 2D. I set dashpots at the base. When I calculate the coefficient, I use rho · Vs · element thickness. DistributedLK2D will automatically calculate the distributed length of the dashpot ...
by liushun
Wed Dec 10, 2025 3:39 pm
Forum: Get Started Discussion
Topic: Issues in 2D Simplification of 3D SSI Model: Unexpected Fluctuations in Acceleration Response
Replies: 3
Views: 343

Re: Issues in 2D Simplification of 3D SSI Model: Unexpected Fluctuations in Acceleration Response

Hello STKO team,

I hope this message finds you well.

I would like to ask another question regarding the operation in my model of removing boundary constraints and applying "Force from reaction". What is the specific reason for this approach? I have never considered such a method in my previous ...
by liushun
Sun Dec 07, 2025 1:45 pm
Forum: Get Started Discussion
Topic: Issues in 2D Simplification of 3D SSI Model: Unexpected Fluctuations in Acceleration Response
Replies: 3
Views: 343

Issues in 2D Simplification of 3D SSI Model: Unexpected Fluctuations in Acceleration Response

Hello STKO team,

I hope this message finds you well.

Recently, I studied the webinar on Soil-Structure Interaction (SSI), which employed a 3D model. I attempted to simplify it into a 2D model for analysis, aiming to simulate the theoretical solution where the ground surface acceleration is twice ...
by liushun
Sat Nov 22, 2025 8:20 am
Forum: Get Started Discussion
Topic: Persistent Issues: Model Convergence, Geostatic Balance Verification, and Nodal Stress Calculation
Replies: 5
Views: 517

Discussion on Nodal Stress Calculation: Reasonable Computational Methods for Stresses at Shared Nodes in 2D/3D Models

Hello STKO team,

I hope this message finds you well.

I have a question regarding nodal stress calculation in finite element analysis:

In a 2D model using quad elements, a single node is typically shared by four surrounding elements. Similarly, in a 3D model using stdbrick elements, one node is ...
by liushun
Sat Nov 22, 2025 8:09 am
Forum: Get Started Discussion
Topic: Questions on Mass/Gravity Definition and Static Analysis for a Shaft Model in STKO
Replies: 17
Views: 2769

Request for Analysis: Convergence Problems in Soil-Structure Model

Hello STKO team,

I hope this message finds you well.

I have recently studied the relevant content from your webinars and have prepared a revised version of my model that appears more reasonable. However, the convergence issues persist unresolved. I would greatly appreciate it if you could help ...
by liushun
Sat Nov 22, 2025 8:01 am
Forum: Get Started Discussion
Topic: Technical Inquiries from Webinar: Transition Interaction and Embedded Element Constraints
Replies: 1
Views: 184

Technical Inquiries from Webinar: Transition Interaction and Embedded Element Constraints

Hello STKO team,

Thank you very much for your continuous support.

While studying the webinar (#025 New Element Presentation - ASDAbsorbingBoundary), I encountered some confusion regarding the creation of the Transition interaction (the connection between the surrounding soil and the soil ...
by liushun
Thu Nov 20, 2025 12:43 pm
Forum: Get Started Discussion
Topic: Persistent Issues: Model Convergence, Geostatic Balance Verification, and Nodal Stress Calculation
Replies: 5
Views: 517

Re: Persistent Issues: Model Convergence, Geostatic Balance Verification, and Nodal Stress Calculation

Hello STKO team,

I hope this message finds you well.

During my recent studies, I discovered a method to address the large deformation issues in geostatic stress balance analysis. By implementing the initialstateanalysiswrapper material, the deformations during the gravity analysis phase can be ...
by liushun
Thu Nov 13, 2025 2:34 pm
Forum: Get Started Discussion
Topic: Questions on Mass/Gravity Definition and Static Analysis for a Shaft Model in STKO
Replies: 17
Views: 2769

Re: Questions on Mass/Gravity Definition and Static Analysis for a Shaft Model in STKO

Hello STKO team,

Thank you very much for your continued support and feedback. I truly appreciate your assistance.

Following your suggestion, I have selected one of the most relevant issues from our previous discussions for this thread, while moving other questions to separate posts to ensure each ...
by liushun
Thu Nov 13, 2025 1:48 pm
Forum: Get Started Discussion
Topic: Persistent Issues: Model Convergence, Geostatic Balance Verification, and Nodal Stress Calculation
Replies: 5
Views: 517

Re: Persistent Issues: Model Convergence, Geostatic Balance Verification, and Nodal Stress Calculation

Hello STKO team,

I hope this message finds you well.

Indeed, focused discussions often yield better results, and I fully agree with this approach. Therefore, I have selected what I consider the most crucial issue from my previous questions - the analysis of geostatic stress balance. I would like ...
by liushun
Thu Oct 30, 2025 5:06 am
Forum: Get Started Discussion
Topic: Persistent Issues: Model Convergence, Geostatic Balance Verification, and Nodal Stress Calculation
Replies: 5
Views: 517

Persistent Issues: Model Convergence, Geostatic Balance Verification, and Nodal Stress Calculation

Hello STKO team,

I hope this message finds you well.

My apologies for posting a new message here. In our previous discussion thread (link: https://asdeasoft.net/forum/viewtopic.php?t=3283 ), although there were 14 messages in total, only 13 are currently visible. I'm concerned that my earlier ...