Reliability testing is an important technical method to evaluate and improve product reliability. This includes creating a research plan, developing research materials, documenting research methods, implementing flawed research techniques, etc.
Purpose of reliability testing
Reliability testing is a test to evaluate and evaluate the reliability of a product. By analyzing the test results, we can not only determine the reliability index of the product, but also analyze the failure of the product, identify its weak link, and then take the corresponding preventive measures to improve the reliability of the product. From an objective point of view, reliability testing plays a very important role in studying product reliability.
Characteristics of reliability tests
Reliability testing is different from regular product testing. The purpose of regular testing is only to ensure that the physical and mechanical parameters of the product meet the company’s specifications and the company’s acceptance, without measuring the product’s failure rate within a specified period of time. Therefore, there is no guarantee for the reliability of the product.
Due to the different objectives and requirements of the test, the test methods are also different. Therefore, we must distinguish between two different concepts of time analysis and reliable testing, and should not replace each other.
Reliability test design
Reliability testing covers a wide range of content. According to the purpose of the test, reliability tests can be divided into engineering tests and diagnostic tests.
The purpose of engineering analysis is to uncover defects in product materials, design, manufacturing, and assembly, and to suggest improvement measures to improve product reliability.
Environmental stress assessment
Environmental stress testing refers to the selection of components, modules, and complete machines under applied stress conditions (vibration, impact, acceleration, temperature, etc.). Due to the inconsistency of resources and processes, differences in technology and quality control, there are “hidden risks” in high productivity.
Confidence growth test
Reliability growth testing is a test to reveal the weak links of the product, apply environmental stress and operational stress to the real situation in the product in a structured and targeted way, to trigger defects, to analyze defects, to improve design and process and to evaluate the effectiveness of the improvement process. Its purpose is to uncover potential product defects and take corrective action to increase product reliability.
Confidence Development Test
Reliability development testing is a process of testing, research and improvement, which affects newly developed products by putting pressure on tested products to stimulate materials, equipment, create and address product defects, and make improvements. eliminating them after checking and keeping mistakes.
Reliability test
Reliability verification testing includes reliability identification testing and reliability acceptance testing. Both of these tests seek to determine whether the reliability of the product meets the specified requirements using mathematical statistics, in order to provide a basis for finalizing the product. They are included in the statistical tests. Among them, a reliable qualification test is used to verify that the product has met the requirements of a reliable index before being approved for production, and a certificate of qualification is issued to the contractor.
A life test
Lifetime testing is a test done to determine how long a product will last under specified conditions. Its purpose is to evaluate the shelf life and shelf life of the product under specified conditions.
Reliability improvement test
Reliability testing includes rigorous stress testing and advanced life testing. It is a test to stimulate and reveal weak links in product design through systematic application of increasing environmental and work pressure, to improve design and processing and improve product reliability.
Improved life experience
Accelerated life testing is a technology and testing process for extracting or evaluating life characteristics under normal pressure levels using life characteristics under high pressure levels by determining the physical and chemical relationship between product life and pressure – Accelerated model based on consistent failure mode. It is a statistical test.
Conclusion
Reliability testing is applicable to many products. It plays a very important role in improving the production process and controlling product quality.
