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Where to prepare the torsional vibration test report? Baijian Material Testing Agency can provide torsional vibration testing services. It is a CMA qualification certification agency, high-tech enterprise, third-party material laboratory, with complete equipment and a strong research team. It can issue testing reports within 7-15 working days, supports scanning code to check authenticity, and provides nationwide on-site sampling and sample sending testing services. The testing cycle is short, the testing cost is low, and the testing data is scientific and accurate Testing cycle: 7-15 working days Testing cost: The engineer will develop an experimental plan and provide a quotation based on the customer's testing needs and the complexity of the experiment. Torsional vibration testing rangeRadiator, ship shafting, motor, transmission shaft, crankshaft, shock absorber, gearbox, induced draft fan, damper, etc Torsional vibration testing items Mechanical damping testing, phase testing, NVH testing, strain testing, etc. (For more requirements, please consult with laboratory engineers to provide one-on-one answers.) What are the functions of the 100% inspection test report? What problems can we help you solve 1. Sales and use. (Selling one's own products and issuing third-party testing reports to make customers more confident in the quality of their products)2. Research and development for use. (During the research and development process, some challenging problems are encountered, which can be solved through testing report data to shorten the research and development cycle and reduce research and development costs.) 3. Improve product quality. (By comparing test data, identify the problems with one's own product, improve product quality, and reduce production costs) 4. Use of research paper data 5. Bidding, Bidding use (the 100% inspection cycle is relatively short, the inspection cost is low, and the recognition is relatively high, which is particularly suitable for bidding use) Torsional Vibration Testing StandardsDL/T 5565-2019 Design Specification for Torsional Vibration Protection of Turbogenerator Shafts GB/T 33199.1-2016 Mechanical Vibration - Rotating Machinery Torsional Vibration - Part 1: Turbine and Gas Turbine Generator Sets Installed on Land Above 50MW JB/T 11879-2014 Durability Test Method for Rubber Torsional Vibration Dampers of Reciprocating Internal Combustion Engines NB/T 42085-2016 Technical Requirements for Torsional Vibration Monitoring and Protection Devices of Turbogenerator Shafts TB/T 3475.2-2017 Diesel Engine Components for Locomotives and Multiple Units Part 2: Crankshaft Torsional Vibration DampersInformation on Torsional Vibration TestingTorsional vibration is a calculation of the degree of influence of the excitation frequency of the transmission system on the natural frequency, reflecting the risk of resonance (resonance) in the system. It is mainly related to the rotational inertia and torsional stiffness of each component of the system, that is, to the structural dimensions of the equipment. It is not a vibration in actual operation, Of course, there are instruments available for detection Torsional vibration has great destructive power. In mild cases, it can cause changes in the torsional stress acting on the shaft, increase fatigue damage to the shaft, and reduce its service life. Severe torsional vibration can lead to damage or fracture of the unit shaft system, affecting the safe and reliable operation of the unit. There are various forms of torsional vibration faults, and the torsional vibration of the shaft system is generally divided into three basic forms based on frequency characteristics: subsynchronous resonance, supersynchronous resonance, and oscillatory torsional vibration 100% inspection and sample testing process1. Sending samples 2. Free initial inspection 3. Quotation 4. Both parties confirm and sign a confidentiality agreement to start the experiment 5. Complete the experiment within 7-15 working days 6. Issue a testing report and provide post service The above is an introduction to torsional vibration testing. If you have other testing needs, you can consult a laboratory engineer to help you answer them Function of testing report:1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report 2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problems100% inspection and testing process:1. Telephone communication and confirmation of requirements 2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:1. The testing industry is fully covered, meeting different testing needs 2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate 4. Free initial testing, with no testing fees charged 5. Self service order delivery for free on-site sampling 6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China
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