Provocation test is imperative to stimulate test (StimulationTest), also known as environmental stress to stimulate the thinking of the test, and simulation (SimulationTest) On the contrary, it is the employer for the imposition of environmental stress to accelerate the shock out and clear of potential product defects to achieve improve the reliability of the test, not only does not seek passed, but the shock potential defects as possible in the idea of ??early well known, but development is much slower than the simulation test. First to engage in rapid test technology internationalization work in this area and regarded pioneers GKHobbs, KAGray and LWCondra, they said such a test for Highly Accelerated Life Test (HALT) and Highly Accelerated Stress Screening (a HASS) .
The former focuses on the design, the latter for the production, the core of the method is to put a large stress, plus step-by-step, time to eliminate the defect, it is also called step stress method, in order to achieve high reliability. From the late 80s to early 90s, one after another in various industrial sectors to promote the use, without exception, has achieved great success, only because of commercial competition with the military industrial confidentiality reasons, there are still many important results are not decrypt published, even the name not yet unified.
L.Condra in its series of papers in the 1980s, the U.S. manufacturers recognize the importance of quality, well aware of the market will only accept high quality and low price products, recognize the importance of reliability to the 1990s, well aware of the market The products not only require a high rate of out-of-the-box, and ensure good performance the same requirements in the design life. This is a new round of challenges to the reliability of RET is the best way to meet this challenge. Condra pointed out that according to the traditional reliability definition to meet the rapidly changing dynamic market is too passive, factory conditions (specifications) on the user's responsibility, not responsible for the use of inevitably lead to failure in the market. So in the 1990s an aggressive market reliability definition should be timely. A reliable product should be able to complete at any time users need to complete the task. As a result, manufacturers will change passive to take the initiative to understand the requirements of the users of the products concerned about the development of the market, and constantly improve and update products, more than by the quality and reliability in exchange for expanding market share, to obtain a high profit return, so a reliable will no longer be a cost burden, contrary reliability is the business to pursue an asset, a kind of wealth. However, the traditional reliability tests, both very costly and very time-consuming, we must develop a new cost-effective alternative method to meet this demand, this is the law of RET. The theoretical basis of the RET technology the fault Physics (Physicsoffailure,), malfunction or failure as the main target, through the discovery, research and cure the failure to achieve the purpose of improving reliability.
Today's highly complex electronic or mechanical and electrical products, to find potential failure is not easy, especially the "hidden" deep or intermittent failures, forced exposure must be used to strengthen the stress, the Practice has proved that RET method results are obvious. China's bearing industry, little heard of bearing life challenge test, the less done to the bearing life challenge test. In the exchange of large international companies with world-class understanding of the provocation test technology test Chinese bearing life indicators. With China's accession to the WTO, opening up the deepening of the bearing life provocation test technology will be revealed to the Chinese bearing industry.
Bearing life and strengthen the positive test prospects Indeed, to be implemented quickly bearing life test, you must have a corresponding bearing life enhancement testing machine, follow the traditional ZS-bearing life test machine "horse cart" type carry out RET can achieve some degree of of success. However, due to the limited carrying capacity, structural strength, system rigidity and other technical parameters of the fast far can not be put in place.
Chinese bearing industry, the first doubts about intensified test of the bearing life, until the mid-1990s with the opening and exchange in-depth, the German Volkswagen bearing quality assessment, the introduction of enhanced test, this issue is resolved. But to strengthen the testing machine shortage of this rapid test application development bottlenecks still exist. Research on this aspect is still lacking.
ABLT series bearing life to strengthen the testing machine is our own design and development, with completely independent intellectual property rights of new life, the rolling bearing life to strengthen the test system technology (A2BLT F2AST) (AutomaticAcceleratedBearing Life, Tester & Fast Failure AnalysisSystemTechnology) method is to solve this problem of hardware and software assembly. , Hangzhou Bearing Test Research Center in the former Ministry of Machinery Machinery Industry Development Fund, the Zhejiang Provincial Natural Science Foundation of results based on the one hand, the hardware on the successful development of the ABLT-1 and ABLT-1A type life to strengthen the testing machine, further strengthen test develop A2BLT life machine and ABLT type life testing machine series. Successively developed of the ABLT-2, ABLT-3 the ABLT-4-5 type life in ABLT strengthen the testing machine.
On the other hand, software, and further study the Rolling fast failure analysis system technology. Failure diagnostic techniques, including fast, fast failure analysis techniques, rapid failure of the three main areas of processing technology. After more than ten years of continuous improvement, the from ABLT-1 to A2BLT, ABLT series to strengthen the test system technology has been improving gradually and abroad bearing the Company and its authorized users and more than 100 bearing large companies and their users to purchase The ABLT series bearing to strengthen the testing machine. Now, with the intensification of economic globalization, resource localization, the international bearing manufacturers operators and bearing large users increasingly demand to improve the bearing quality, in particular to improve bearing life and its reliability. Large international companies will further increase the intensity of the implementation of global sourcing on the bearing, the international trend of the rapid test of the bearing life will be very obvious.
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