Failure analysis in the "narrow sense" is to simulate and reproduce the failure phenomenon through analysis and validation according to the failure mode and phenomenon to find out the mechanism.
Failure analysis in the "narrow sense" is to simulate and reproduce the failure phenomenon through analysis and validation according to the failure mode and phenomenon to find out the mechanism and cause of failure. However, with the rapid development of modern science and technology, modern equipment to high-precision, high-complexity, extremity, refinement, comprehensive and other directions, the role and status of failure analysis is increasingly prominent, and has become a key link in the whole life cycle of equipment reverse design. "Failure analysis in the broad sense can be understood as the center of equipment reverse design, which not only seeks to find out the cause and mechanism of failure, but also focuses on finding out the methods and paths to solve the problem.
In order to avoid the functional failure of the final product, a lot of work similar to failure analysis has to be done in the design and trial production stage. And these works, in the enterprise is not to failure analysis as the ultimate goal, here, failure analysis is a method and means, for the ultimate reliability goal service, rather than the goal itself. We believe that failure analysis in a broad sense should be a regular technical outsourcing activity, an efficient method for product life assessment, risk prevention, service operation and maintenance, and design improvement.
There are many types and states of equipment or products, and the forms of failure are also very different. Failure analysis is difficult to have a fixed and unified process and mode, but has gradually formed a set of multidisciplinary knowledge-based methodology system, through the systematic analysis, testing and verification, the technical solutions obtained, to improve the credibility of the equipment (safety, reliability, usability, repairability, maintenance and security and the whole life cycle of the economy) to play an extremely important role.
Based on the research team's previous deep cultivation in the field of rail transportation and aerospace, the following failure analysis service packages are launched:
Service I
Based on the analysis of service behavior and failure mechanism, it can provide design optimization, material selection optimization, manufacturing process optimization, lubrication and friction reduction design, surface engineering protection scheme and technology for the equipment design and manufacturing process of the fastening connection structure; optimize the repair process and repair system for the operation and maintenance of the fastening connection system, and provide the life prediction and life extension technology scheme.
Service II
Based on the theoretical analysis and numerical simulation of service behavior and failure, it can provide safety evaluation, theoretical and computational models, simulation calculations, data support services, and engineering test validation for the service of fastening connection systems.
Service III
Based on the advanced measurement and testing technology and equipment derived from failure analysis, it can solve the problem of accurate acquisition of quantitative value and rapid data transfer in intelligent manufacturing, intelligent operation and maintenance, digital twin and other links to measure and test and its data application services to improve product quality and service reliability.
Service Targets
Equipment and systems meet the conditions of design, operation and maintenance enterprises: high structural reliability needs, structural failure hazards, complex service conditions, the use of traditional industry bolt connection design selection standards for selection and design (i.e., did not use accurate finite element simulation analysis, VDI 2230 high-strength bolting system design manual and other advanced methods of design), not in strict accordance with the assembly specifications for assembly, there are potential risks and safety hazards of equipment and systems. equipment and systems with potential risks and safety hazards.
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