Accelerated Testing: A Practitioner's Guide to Accelerated and Reliability Testing

Dodson, Bryan; Schwab, Harry

doi:10.4271/9781468603514

Cited by 3 publications

(2 citation statements)

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“…This information can be used in the re-design of a product before initiating production. Highly accelerated stress screening (HASS) (Silverman 1998) that applies progressively increasing stress levels, environmental stress screening (ESS), and burn-in are used to test products before delivery to remove defective products that would fail quickly in field use (Dodson and Schwab 2006). These tests are also applied in defining the boundaries of operating conditions.…”

Section: Tailored and Accelerated Testingmentioning

confidence: 99%

Reliability evaluation of CAN-bus connectors with tailored testing

Ojala

Rämö

Miettinen

et al. 2023

Mining Technology: Transactions of the Institutions of Mining a

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Controller Area Network (CAN-bus) is a default solution for digital control in machinery. The CAN-bus structure uses connector components to extend cabling and join subsystems. The connectors are IP-classified, so they tolerate humidity and particle ingress. Ingress protection also provides durability against other stress factors. Usually, connectors are exposed to multiple stress factors, but the stress levels are durable. In mining applications, however, stress levels can be high, and other factors become significant, so IP classification does not necessarily indicate sufficient durability. Tailored testing can be used to identify suitable components for a specific purpose. In this study, the actual stress factors of an underground mine drill were used in tailored tests. The results showed significant differences in reliability between connector models with the same IP code. The ranking of the components varied depending on the stress factors used. This highlights the importance of using actual operating conditions when evaluating reliability.

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Section: Tailored and Accelerated Testingmentioning

confidence: 99%

Reliability evaluation of CAN-bus connectors with tailored testing

Ojala

Rämö

Miettinen

et al. 2023

Mining Technology: Transactions of the Institutions of Mining a

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“…Few guidelines dedicated to PV can be found in literature [122] but besides that, literature from other industries using environmental engineering and accelerated ageing tests for long time can be used. Especially automotive industries offer a lot of experience in this topic [157].…”

Section: Test Designmentioning

confidence: 99%

Accelerated aging tests vs field performance of PV modules

Weiß

Klimm²,

Kaaya

2022

Prog. Energy

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The market for Photovoltaic systems has experienced an enormous growth worldwide and will further grow over the coming decades. Investments in Photovoltaics became an important financial product with the special feature of very long contract durations. Typically operation of over 20 years is expected, during which generation of electricity and revenues are expected. Due to these long operational times, quality, durability, reliability, and degradation rates become crucial for the investment. PV modules are the dominating components in this regard since they prevail the investment. Accelerated ageing tests are in general used to ensure the quality of photovoltaic components. These tests are partly standardized, for PV mainly by IEC and are used for type approval or safety testing. Accelerated ageing tests are also adapted to specific needs and e g used for Quality Assurance (QA) of manufacturers or Service Life Prediction (SLP) by manufacturers or research institutes. All the efforts are taken to gain knowledge about the behaviour of PV modules in operation and thus the accelerated tests have to be related to normal operation. Since PV is used around the globe, the conditions vary significantly depending on the location of installation. In addition, the installation has severe influence on the operational conditions of PV modules. The papers attempt is to give an overview on the state of the art of accelerated testing and field performance analysis of PV modules with focus on developments over the last five to ten years. Developments are described and the status is analysed regarding the significance of tests including the latest developments and open scientific gaps related to the envisaged correlation of accelerated tests with field performance. The reader is enabled to differenciate between reliability testing and service life prediction. The understanding for a comprehensive approach of reliability testing including field evaluation data is develope

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