VERSION 10.5
Applications Research, Inc.
For information call - Phone (763) 521-0217
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Weibull-Ease was developed to satisfy the need for an accurate, easy to use, system to calculate reliability for medium to high volume products, before, during, and after production. It is also used for integration of market research and field data with laboratory tests, warranty failure cost estimates, and future reliability. Those of you who use competitive programs would do well to download the demo and compare. We are quite confident that many of you who make a serious comparison will switch to Weibull-Ease as your standard department software. Please note, when making accuracy comparisons, that our regressions are all based upon rank regression on X (i.e. RRX).
If you're looking for meaningful results for anything from heart valves to battle tanks, with report printouts in a form that is understandable to non-technical management as well as technical professionals, we believe you've come to the right place. Incidentally, this is accomplished at significantly less cost than virtually all other viable options.
In addition to the standard statistical analyses routines of the more well known software, Weibull-Ease uses a unique, simple, and understandable routine for comparing engineering's lab or field test data with marketing's field use data. Also, we are willing and able to customize this or similar packages if you have unique requirements. Please call, write, or e-mail if you need to discuss customization.
These procedures and routines are compatible with all major industry and military standards.
To download (WEIBULL-EASE DEMO) click here. The demo is a complete program except for a 30 day time limit on its operation.
NEW ROUTINES
1.) Multiple Mode Analysis Most recently, we have developed and added a very clean, easy, system for analyzing multiple failure modes based upon each mode's Weibull distribution parameters. The individual modes' are combined to allow creation of a single Weibull equation to represent the entire system, which can then treated as if it were a single mode. We believe this copyrighted routine is the most simple, easy to understand, procedure on the market today. This routine can also serve as input for the Market Use Analysis comparison routine. All failure modes for a given system or machine can be saved together and recalled as a single set. This application can be of use to analyze fleets of vehicles or equipment throughout an organization's, or even a country's, structure. Future production's field reliability estimates is one obvious application. Analysis of rental car fleets is another. Large scale medical product studies is another. Military vehicle or equipment reliability inputs into computerized competition models is yet another. The built-in sample data routine shows you how this works.
2.) Market Use or Customer Demand Analysis This data is typically provided by market research groups. This routine is to convert this market research use data in the form of quartiles by annual use, or as a normal distribution with standard deviation, into a form that can be compared to the product's capability. Here again, the analyses are based upon the Weibull relationships.
3.) Combined Distributions This routine compares the above multiple-mode Weibull capability analysis of a particular system, machine, or product (test data usually provided by engineers), and matches it against the Demand Analysis' Weibull estimate (typically provided by marketing groups) of the expected annual use of the same population of identical systems or products.
4.) Bearing Analysis Conversion of standard bearing load/life figures into Weibull reliability parameters. These can then be inserted directly into the Multiple Mode Analysis routine or used as is. Built-in sample data routine shows you how this works. We have also added a printout and PDF conversion for this section.
5.) PDF Files As of the February 20, 2008 upgrade, Weibull-Ease now includes a PDF alternative with all the print routines. This improvement, along with others, has come about due to requests from multiple users of the program.
6.) Zero Failure Test Planning As of the April 8, 2008 upgrade, Weibull-Ease now has the most practical, easy-to-use, and understand, Zero Failure calculation routine available anywhere. If you download the demo and try it out, we are quite certain you will agree.
We believe we are now matching or exceeding the competitions' best, most useful routines - items for item, and at a much more reasonable cost. Our routines are those necessary to accomplishing the end of assisting you to put out a reliable product - - not simply a means of generating paper. These routines and printouts were created by, and are the result of solid, professional level input from practicing design, test, and reliability engineers from all over the country. While the numbers have always been accurate, we are always looking to significantly improve the presentations and reports. Consequently, if you do download and see where we can improve, please let us know. There is a strong possibility we will incorporate your suggestion within the next one or two sets of changes – especially if you are a customer. Keep in mind, upgrades are at no charge for 18 months.
DOWNLOADS
To download (WEIBULL-EASE DEMO) click here. The demo is a complete program except that it has a 30 day time limit for its operation. If you need a little more time, please let us know and we'll figure out some way to accommodate you. If you have an earlier build version of Weibull-Ease with the same name or number, you should not have to uninstall. It should be automatic. After 30 days, the key code is necessary to make the program permanent. While trying it out, you may have questions. If so, or if you simply need clarification on some part of the program, please give us a call at (763) 521-0217 and we will gladly walk you through it.
Purchase and insertion of the key code eliminates the above demo's 30 day time limit. Purchase also includes the Weibull-Ease Manual, plus telephone support and updates for eighteen months. The present price for Weibull-Ease is $398 USD for a single seat. The unit price when purchasing multiple seats is less. To purchase by credit card click here. (WEIBULL PURCHASE). If you prefer, we can also work through your company's purchase order. To arrange this, e-mail jmb@applicationsresearch.com or call us at (763) 521-0217 or fax your P.O. to (763) 521-0269. If, in the first 60 days after purchase, you discover an error you can't live with, give us a call and we will either correct the error or refund the purchase. An excellent reference for this program is the manual Practical Weibull Analysis, Fourth Edition, by James A. McLinn. This can be ordered directly through him by e-mail at James McLinn.
If you have any problem with the download, please e-mail us call us at (763) 521-0217. In most cases we will correct the problem almost immediately.
This revision is as of 3/18/09. If you've downloaded before then, you aren't quite current, so feel free to repeat the process as often as you wish. If you've downloaded much longer than a couple weeks back from the date shown, the improvements in function and related printouts may be dramatic. This is so much so, that even the graphics on this website have yet to catch up with the most recent features.
Weibull-Ease includes full three parameter analysis, confidence plots, suspended test compensation and automatic sort, plus grouped data insertion. Unique system of comparing market or field use data with test data to generate accurate prediction of field failure and warranty costs. It also includes routine to print scaled, labeled, Weibull paper. Also, we are not aware of any other software that prints out discrete reliability/failure values for the selected confidence limits. These are, at times, the most important figures sought by decision makers to facilitate their processes. The typical worksheet for the Weibull distribution is as shown below. Note we use rank regression on X as this is preferred by virtually all authorities on life testing statistics. There are other ways to generate the numbers, but rank regression emulates the way the equipment design process works - - i.e. best fit for the best available information. Wars have been won and lost on proper (and improper) application of this principle to equipment design.
The Weibull distribution is unique in that it takes on the shape which best fits the data. The more typical situation is where data is "force fitted" into a standard type of distribution, such as the Normal, Exponential, or other. In other words, the Weibull distribution has the ability to reveal, rather than mask, the correct distribution of the data. For example, a Weibull shape factor of 1.00 represents an exponential distribution. If data you've assumed to be distributed exponentially comes out with a Weibull shape factor of about 3.0, you'd best revisit your assumption. A Weibull shape factor of about 3.25 or above represents an approximately normal distribution. In addition, use of any of the Weibull analysis routines to accomplish estimates of population characteristics, is simply a recognition of the fact that populations are rarely 100% normal, binomial, or exponential and so on.
Separate routines
include
MULTIPLE MODE ANALYSIS The software takes data generated from calculation of each individual mode and consolidates it into a single new set of Weibull distribution parameters. We are now able to represent the entire system with a single relationship. Note immediately below, how closely the System Equivalent Weibull Distribution matches the Solved System points.
COMBINED DISTRIBUTIONS A final unique Weibull-Ease feature is a routine to simplify and rationalize a series of tedious calculations to evaluate and quantify an essentially quite simple idea. That is, whenever the demand put upon an individual unit of the population being evaluated, exceeds its capability, it fails. In addition, Weibull-Ease's capabilities enable you to accomplish the major critical functions of the more well known Weibull routines.
The ultimate goal of this effort is to match two Weibull distributions - -
1.) Unit Capability (or strength) Distribution
2.) Expected Customer Demand (or stress) Distribution
Capability or Strength
Demand or Stress
(Engineering or Test data) (Market Research
Data)
- to generate a third distribution
consisting of those units whose
individual use has exceeded their respective capabilities (or life).
This method can be applied to most mechanical or electrical products, from light bulbs to lawn mowers, and especially, to life critical applications such as heart pumps or battle tanks. This routine also can be quite useful in helping to coordinate the marketing and engineering efforts in an organized, comprehensible, and workable manner. For example, a proper way to specify consumer product life can be by identifying two points on a maximum allowable failure schedule. This then requires identification of say, 1% failure in the first year and 25% failure in the fifth year. This is a figure which would normally be supplied by marketing and/or market research departments. This is also the type of input needed to define the Demand (or Stress) distribution. It is then compared with Capability data determined by the Engineering and Test Departments.
Finally, please note below that our printouts are complete stand-alone reports that include the shape of the distribution, plus the standard statistical parameters. They go a step further in that they also include the numerical values of the confidence limits at each selected reliability level. We believe this to be a unique feature that stands alone in this market.
The program generates the major standard distributions. These are Weibull, normal, log-normal, and exponential. They are all documented in a manner similar to that shown above and in such way as to allow convenient, clear, presentation to both technical and/or non-technical audience. We trust this system will work out well for your needs and we look forward to your feedback.
The demo program is completely functional and includes all the above discussed capabilities, including the printouts. Its only constraint is that it has a 30 day time limit.
IMPORTANT NOTE If you experience any problem whatsoever with the download or the program, please call us right away. Most likely, we can straighten out the problem, or answer any question, in short order. Please don't hesitate to do this. You will only be doing us a favor and we will appreciate it.
Click here to download the DEMO PROGRAM. The demo is a fully armed and complete program except for the 30 day time limit for its operation.
PRIVACY POLICY Applications Research, Inc. recognizes the importance of our customers’ trust. Keeping our customers’ personal information confidential is a top priority. This notice, which is required by state and federal law, explains our Privacy Policy.
1. We safeguard, according to strict standards of security and confidentiality, nonpublic, personal information our customers share with us. "Non-public, personal information", for example, would include such information as your name, address, phone etc. We maintain safeguards, physical and electronic, to protect that information. We conduct our business in a manner that keeps personal customer information secure. Credit card numbers are neither collected or kept by us. This is accomplished by linking you to our fully secured and authorized credit card processor, Elavon, wholly owned subsidiary of US Bank Corporation.
2. We limit the collection and use of customer information to the minimum we require to deliver superior service and to administer our business. We collect personal information about customers strictly from your transactions with us.
3. It is our policy that only authorized employees, and staff who need to know your personal information will access and use it.
4. It is our policy not to share personal customer information (either current or former customers) outside Applications Research, Inc. unless the disclosure has been authorized by the customer or is permitted or required by law.
5. Whenever we retain other organizations to provide support services on behalf of Applications Research, Inc., we require them to protect customers’ personal information.
6. When necessary, we will review and revise our Privacy Policies to protect personal customer information.
WEIBULL-EASE is copyrighted by, and the exclusive property of - -
Applications Research, Inc.
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