These 9 tips will help you start to get the most out of Excel for engineering. Watch my free training just for engineers. In the three-part video series I'll show you how to easily solve engineering challenges in Excel.
Click here to get started. To eliminate the pain associated with Excel cell references, use Named Ranges to create variables that you can use in your formulas. Not only do they make it easier to enter formulas into a spreadsheet, but they make it MUCH easier to understand the formulas when you or someone else opens the spreadsheet weeks, months, or years later.Shear force and bending moment diagram practice problem #1
To make it easy to update chart titles, axis titles, and labels you can link them directly to cells. If you need to make a lot of charts, this can be a real time-saver and could also potentially help you avoid an error when you forget to update a chart title. To update a chart title, axis, or label, first create the text that you want to include in a single cell on the worksheet.
Next, select the component on the chart. Now, the chart component will automatically when the cell value changes. You can get creative here and pull all kinds of information into the chart, without having to worry about painstaking chart updates later.
Usually, we set up spreadsheets to calculate a result from a series of input values. You could rearrange the equations and make the old result the new input and the old input the new result. You could also just guess at the input until you achieve the target result. Fortunately though, neither of those are necessary, because Excel has a tool called Goal Seek to do the work for you. Select OK, and Excel iterates to find the correct input to achieve the target.
One of the things that makes Excel a great engineering tool is that it is capable of handling both equations and tables of data.
Statics For Dummies
And you can combine these two functionalities to create powerful engineering models by looking up data from tables and pulling it into calculations.
In many instances, they can do everything you need. These two functions allow you to lookup data in any column or row of a table not just the first oneand you can control whether the value returned is the next largest or smallest. This is done by taking advantage of the flexibility of this lookup method to find the x- and y-values immediately before and after the target x-value. Another way to use existing data in a calculation is to fit an equation to that data and use the equation to determine the y-value for a given value of x.
Many people know how to extract an equation from data by plotting it on a scatter chart and adding a trendline. This can result in errors from typos or forgetting to update the equation when the data is changed.This web page lists statistics formulas used in the Stat Trek tutorials.
Each formula links to a web page that explains how to use the formula. Unless otherwise noted, these formulas assume simple random sampling. In the following formulas, X and Y are random variables, and a and b are constants.
The correct formula for degrees of freedom DF depends on the situation the nature of the test statistic, the number of samples, underlying assumptions, etc. Below, the first two formulas find the smallest sample sizes required to achieve a fixed margin of error, using simple random sampling.
The third formula assigns sample to strata, based on a proportionate design. The fourth formula, Neyman allocation, uses stratified sampling to minimize variance, given a fixed sample size.
And the last formula, optimum allocation, uses stratified sampling to minimize variance, given a fixed budget. Browse Site. Statistics Formulas This web page lists statistics formulas used in the Stat Trek tutorials. By convention, 0!Conditional Probability. Permutations nPr for Multiple Subsets.
Sample Size by Standard Deviation. Sample Size by Proportion.
Population Variance Estimation. Population Variance. Standard Deviation. Population Standard Deviation. Z-Test for Proportion Significance.
Students t-Test for Mean Significance. F-Test between Sample Variances. CHI-squared Test. Standard or Z-Score. SE of Observed Sample Proportion. SE of difference between 2 sample proportions. Confidence Interval for Mean - Infinite Population. Confidence Interval for Mean - Finite Population.
CI for Proportion - Infinite Population. CI for Proportion - Finite Population. Margin of Error. Correlation Coefficient. Linear Regression. Coefficient of Variation. Normal Probability Distribution. Poisson Probability Distribution. Binomial Probability Distribution. Negative Binomial Probability Distribution.
PDF of Exponential Distribution. PDF of Uniform Distribution. PDF of Triangular Distribution. PDF of Gamma Distribution.
9 Smarter Ways to Use Excel for Engineering
PDF of Weibull Distribution. Percentile Score. What is the factorial for 4? You may like the below resources!From Statics For Dummies. By James H. Allen, III. As with any branch of physics, solving statics problems requires you to remember all sorts of calculations, diagrams, and formulas. The key to statics success, then, is keeping your shear and moment diagrams straight from your free-body diagrams and knowing the differences among the calculations for moments, centroids, vectors, and pressures.
Solving statics problems can be complicated; each problem requires a list of items to account for and equations to create and solve. Solve statics problems with ease by using this checklist:.
In addition to dimensions and angles, you must include four major categories of items on a properly constructed free-body diagram:. Write equilibrium equations to compute as many unknown support reactions as possible. To solve for internal forces, identify the type of structure and write your equilibrium equations. After you identify the type of structure, you then know which technique to use to help you write your equilibrium equations:.
To solve, you can use the method of joints or the method of sections. Beams bending members : Members are loaded with internal axial forces, shear forces, and moments. To solve, cut the member at the desired location, draw a new free-body diagram of the cut section, and write equilibrium equations. To solve, use the blow-it-all-apart approach to break the structure into smaller pieces. Look for internal hinges as common places to separate your structure and draw free-body diagrams to solve for the connecting pin forces.
Cable structures: Members are constructed from axially loaded cables. Compute the cable tension at the location of known maximum sag or vice versa.
Submerged surfaces: Members are subjected to fluid pressure. To solve, draw a free-body diagram of the hydrostatic pressure diagram which is zero at the fluid surface and linearly increases with depth.
Include the weight of the fluid on objects with non-vertical faces. When working submerged surface problems in statics, remember that all submerged surfaces have a fluid acting upon them, causing pressure.
You must compute two pressures: the hydrostatic pressure resultant and the fluid self weight. Hydrostatic pressure resultant: The hydrostatic pressure resultant acts horizontally at 0. To compute the center of area of a region or distributed loadyou can compute the x- coordinate and the other coordinates similarly from the following equations:. For discrete regions: You can break discrete regions into simple shapes such as triangles, rectangles, circles, and so on.
For discrete shapes, creating a simple table such as the one that follows for each coordinate can be useful. You can create as many rows as you need for as many regions as you have. For continuous regions: Continuous regions are usually defined by more complex boundaries, so you must define them with mathematical equations such as the one that follows:.
Shear and moment diagrams are a statics tool that engineers create to determine the internal shear force and moments at all locations within an object. Start by locating the critical points and then sketching the shear diagram.
Order increases from load to shear to moment that is, 1st order load diagram, 2nd order shear, 3rd order moment. If the load area is positive, the change in shear is positive. If the shear area is positive, the change in moment is positive. In many statics problems, you must be able to quickly and efficiently create vectors in the Cartesian plane.
Luckily, you can accomplish your Cartesian vector creations easily with the handy vector formulas in this list:.Learn more about Scribd Membership Home.
Engineering Statics (EngM 223)
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Radial and tangential stress in thick-walled cylinders or tubes with closed ends - with internal and external pressure. Online vector calculator - add vectors with different magnitude and direction - like forces, velocities and more. Young's Modulus or Tensile Modulus alt. Modulus of Elasticity - and Ultimate Tensile and Yield Strength for steel, glass, wood and other common materials.
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Statics – Formulas and Problems
Statics Loads - force and torque, beams and columns Sponsored Links. Privacy We don't collect information from our users. Citation This page can be cited as Engineering ToolBox, Modify access date.
Scientific Online Calculator. Make Shortcut to Home Screen?Looks like you are currently in Russia but have requested a page in the United States site. Would you like to change to the United States site? James H. Allen III. Does the study of statics stress you out?
Does just the thought of mechanics make you rigid? Thanks to this book, you can find balance in the study of this often-intimidating subject and ace even the most challenging university-level courses. Statics For Dummies gives you easy-to-follow, plain-English explanations for everything you need to grasp the study of statics. You'll get a thorough introduction to this foundational branch of engineering and easy-to-follow coverage of solving problems involving forces on bodies at rest; vector algebra; force systems; equivalent force systems; distributed forces; internal forces; principles of equilibrium; applications to trusses, frames, and beams; and friction.
If you're currently enrolled in a statics course and looking for a friendlier way to get a handle on the subject, Statics For Dummies has you covered. Request permission to reuse content from this site. Undetected location. NO YES. Statics For Dummies. Selected type: Paperback. Added to Your Shopping Cart.
This is a dummy description. The fast and easy way to ace your statics course Does the study of statics stress you out? Offers a comprehensible introduction to statics Covers all the major topics you'll encounter in university-level courses Plain-English guidance help you grasp even the most confusing concepts If you're currently enrolled in a statics course and looking for a friendlier way to get a handle on the subject, Statics For Dummies has you covered. About the Author James H.
Allen IIIPE, PhD, is a registered professional engineer who teaches courses in the areas of statics, mechanics, structural engineering, and steel design.
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