Although the overall development of domestic textile machinery is not satisfactory, the tufted carpet loom independently developed by Donghua University has broken the monopoly and filled the domestic blank. In China, carpet production is a small industry, accounting for a small proportion of textiles. The total amount of domestic carpets is less than 3% of the world's total, but it has been developing at a growth rate of more than 20% in recent years. But in China, even in the textile industry, there are very few experts who are really familiar with carpet equipment, craftsmanship and technology. Compared with foreign textile machinery powerhouses, there is still a certain gap in domestic development. Compared with the international advanced technology level, there is still a big gap in terms of high speed, high yield, high quality, automation, continuity, intelligence, manufacturing precision, production efficiency, stability and reliability .
With the rapid development of domestic machinery, due to the lack of development experience, many key issues have also been ignored in the development. For example, the mechanical spindle will experience abnormal vibration during operation, resulting in unstable dynamic characteristics, which seriously affects production efficiency and product quality. . Therefore, the research on the dynamic characteristics of the spindle system can well improve the working conditions of the existing equipment, and is also of great significance to the design of the subsequent new generation of products.
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