# MEboost

## Tolerance Analysis in Excel with MEboost

MEboost allows for easy analysis of a tolerance stack.  In this article we’ll show how to perform worst case, root sum squared (RSS), and Monte Carlo tolerance analysis in Excel using MEboost.  If you want more background information on the three methods, check out the tolerance analysis article. PART I Basic Concepts Before we start …

## Creating a Vibration Transmissibility Plot

A vibration transmissibility plot is a useful way of seeing the response of a harmonic oscillator.  In this article we’ll go over the basics of undamped and damped vibration as well as understanding what a vibration transmissibility plot means. In the context of this article, we will be considering spring – mass and spring – …

## Miner’s Rule for Cumulative Fatigue Damage

When spectral loading is present, Miner’s rule is often used as a way to determine the amount of cumulative damage that has occurred.  In this article we will discuss the use of Miner’s rule and how it is used to determine either damage that has already occurred, or to provide an estimate of fatigue life. …

## Using K-Factor for Sheet Metal Flat Blanks

The K-Factor method is a versatile way of calculating sheet metal flat blank dimensions.  MEboost employs the K-factor method to calculate flat blanks in two directions.  Consider the flat blank below.  We have already designed the formed part and need to know the overall dimensions as well as the location of the bend lines. Calculating …

## Using Mohr’s Circle for Plane Stress

Mohr’s circle is a handy tool for determining principal stresses in a body under plane stress.  We will dive into the basics of Mohr’s circle and how it is easily created using MEboost. Mohr’s Circle Basics When conducting critical plane analysis, Mohr’s circle can be used to determine the critical plane where maximum damage occurs.  …