Engineering Talk - DCS's Blog on Quality and Engineering

When and Why Use Simulation Based Sensitivity for Tolerance Analysis

Simulation Based Sensitivity Allows the Analysis of Non-Linear Relationships, Mean Shift and the Interactions Between Tolerances

Simulation Based Sensitivity is a new tool for the 3DCS AAO Add-on module that offer new advanced analysis options

So what is it and what are some instances where you would want to use this tool?

 August 31st - Simulation Based Sensitivity Webinar
-- Improve sensitivity accuracy on complex models and get more detailed results - New analysis feature coming for 3DCS Advanced Analyzer and Optimizer (AAO) Add-on Module 

Click Here to View the Webinar Recording

 

What is Simulation Based Sensitivity (SBS)?

Topics: 3DCS Tolerance Analysis Webinar Global Technology Conference

Simulation Based Sensitivity Solves Non-Linear and Complex Interactions in Your Tolerance Analysis Models

Non-Linear Models? Complex Interactions? No Problem!

How Does Simulation Based Sensitivity Work? Learn some here, and then join us for a webinar to see for yourself!

August 31st - Simulation Based Sensitivity 
-- Improve sensitivity accuracy on complex models and get more detailed results - New analysis feature coming for 3DCS Advanced Analyzer and Optimizer (AAO) Add-on Module 

Click to Join the Webinar (It's Free, promise)

 

Topics: 3DCS Tolerance Analysis Webinar

SOVA - Stream of Variation Analysis System for Multistage Manufacturing Processes

SOVA - Stream of Variation Analysis System for Multistage Manufacturing Processes

This piece is based on the work done by DCS Dimensional Control Systems in cooperation with Dr. Jianjun (Jan) Shi at the University of Michigan and Drs. Darek Ceglarek and Shiyu Zhou at the University of Wisconsin - Madison, with the support of a two million dollar grant from the Advanced Technology Program of the National Institute of Standards and Technology.

SOVA is a method of applying variation analysis as part of the design and manufacturing process to drive robust design in order to reduce costs in manufacturing. 

Developed in the late 90's and early 2000's and documented in the book "Stream of Variation Modeling and Analysis for Multistage Manufacturing Processes" (Jianjun Shi, 2006, CRC Press, ISBN 1420003909), it forms a basis for many of the programs DCS provides for customers and is similar to many process established by leading manufacturers in the automotive and aerospace industries.

 

Topics: CATIA 3DCS Tolerance Analysis CATIA V6 DE Focus Siemens NX 3DCS Creo PTC Creo

Vector Loop Analysis and Stream of Variation Analysis - SOVA

What are Some Methods of Variation Analysis?

There are a number of different methods developed to both describe variation on models and drawings, as well as analyze and control the impact of that variation. 

In a typical assembly process, dimensional variation is affected by tolerances (including component and operationinduced tolerances) and operations. Tolerance Analysis is focused on tolerances and assumes operations are known. Dimensional Variation Analysis analyzes both tolerances and operations. For example, operation sequence or operation type is an analysis topic for Dimensional Variation Analysis.

Topics: CATIA 3DCS Tolerance Analysis CATIA V6 DE Focus Webinar Siemens NX 3DCS Creo PTC Creo

What Is a Tolerance Stack Up?

What Is a Tolerance Stack-Up? How Do You Calculate It?

Tolerance Analysis encompasses several processes used to determine the potential accumulated variation in manufactured parts and assemblies.

It is often applied to manufactured parts in general to determine the impact of manufacturing processes on the final dimensions of those parts. Tolerances are determined by a variety of methods, from standards such as ISO or ASME, or from the use of geometric dimensioning and tolerancing (GD&T), a method of annotating and marking tolerances on parts.

Methods of Tolerance Analysis

Topics: 3DCS Tolerance Analysis T&T