Current：The design of the fastening connection system needs to be verified by the relevant standards (e.g. VDI 2230 standard) for strength, combined with theoretical analysis and accurate finite element ...
The design of the fastening connection system needs to be verified by the relevant standards (e.g. VDI 2230 standard) for strength, combined with theoretical analysis and accurate finite element calculation to examine the failure behavior of the fastening connection structure, and then proposed to correspond to the different forms of load tightening strategy, anti-loosening design and structural optimization program. In the special environment (such as deep low temperature, ultra-high temperature, strong vibration, salt spray corrosion, etc.) service bolt connection, through the reliability design and failure behavior analysis to propose a targeted fastening connection anti-loosening design scheme.
Technical lines of calculation and structural design of fastened connections
The core of the overall structural design of the fastening connection system is to ensure that the connecting parts (such as bolts, nuts, rivets, pins, etc.) in a variety of engineering applications with sufficient strength, stability and reliability. In the structural design of the fastener system, the application of bolt connection in engineering practice generally follow the relevant technical standards. Overseas in the bolt connection design has done a lot of research, has also formed a bolt connection design specifications. For example, NASA NSTS 08307 "pre-tensioned bolt design guidelines", Boeing "BAC 5009M bolt and nut installation", the German Association of Mechanical Engineers VDI 2230 "high-strength bolted system calculations", the American Society of Automotive Engineers "SAE 1471A-2000", the Soviet Union, "OCT 100017-1989", Japan JIS B1083 "General Rules for Fastening of Bolt Fasteners" and so on.
Services
☆ Design of connectors and connection structures
☆ Selection of anti-loosening structure (bolt/nut/washer)
☆ Strength check of bolts based on VDI2230 guidelines
☆ Stress checking and structural optimization
☆ Calculation of preload and torque, optimization of fit accuracy
☆ Lubrication and corrosion prevention recommendations
Service Advantages
Team researchers in the fastening connection structure of the mechanism of loosening research and anti-loosening research on the cutting edge of the field for many years, for stress calibration, structural optimization, preload selection, fit precision optimization, etc., over the past ten years to undertake a large number of services with strong relevance to the content of the national scientific research projects or horizontal subject, with strong R & D strength and rich research accumulation, to help the rail transit industry to solve a large number of engineering problems. The team has assisted in solving a large number of engineering problems in the rail transportation industry. For lubrication and anti-corrosion, the team has undertaken a number of vertical and horizontal projects, including the National Natural Science Foundation of China, and has successfully researched and developed a variety of lubricating grease and realized engineering applications.
Structural Safety: The services can help various engineering applications such as aerospace, automotive, and machinery manufacturing to ensure the strength, stability, and reliability of connected components, thereby reducing the risk of structural failure and improving the safety of engineered structures.
Reduce costs and increase efficiency: help companies choose the right materials for connecting parts, anti-loosening lubrication methods, and structural dimension design to ensure that their performance meets engineering requirements, while optimizing the choice of materials to reduce costs.
