Apparatus and method for dynamic analysis of sports equipment
Researchers at the Department of Mechanical Engineering have developed a new technique for measuring dynamic information, such as rotational speed, of sports equipment as it moves through the air. This technology can also measure the change process of the inertial flight of sports equipment, and its condition before the inertial flight. Equipped with inertial measurement devices on sports equipment, this technology can be used to store and transmit sports equipment-related information, and at the same time, this technology can also analyze data to determine relevant inertial flight information. A simplified set of inertial measurement devices can provide cost-effective key data information. This technology can enable users to have better performance on the sports field, and can also prevent users from injury through more optimized operation methods of sports equipment. ball games For many sports, the transition of sports equipment to inertial flight state and its corresponding dynamic information are very important. Much information about the ball as it coasts (from the corresponding rotational speed to the twisting force on the ball) is invaluable to coaches and athletes alike. In ball sports such as bowling, dynamic information such as inertial flight status is a major aspect of the game, so a technology that can provide such information in a low-cost, ball-integrated platform is very important. necessary.Detail +
Home fitness equipment is popular in the market
After the Spring Festival, due to the low temperature, people's enthusiasm for outdoor sports has also been relatively reduced, especially when the air quality is relatively poor, citizens who want to exercise will gradually turn their attention to indoors, which has led to the hot sales of home fitness equipment for a while. . In the past few days, the reporter found through visits that indoor fitness equipment such as treadmills, exercise bikes, and dance mats are very popular.Detail +
Application and Development of Nylon Materials in Sports Equipment
Sports equipment and sporting goods should not only adapt to the use conditions of different outdoor or indoor environments, but also give athletes comprehensive protection in terms of strength, toughness, force and wear resistance according to different sports. Polysialon's targeted material development can cover a wide range of different types of sports equipment. Which sports equipment can nylon material be used for? Nylon materials are generally used in basketball nets, volleyball nets, badminton nets, and table tennis nets. Sports clothing nylon clothing has high strength, long elongation, and good elastic recovery; bicycle seat cushions, hubs and wheels are made of nylon, and the application of nylon (PA) bicycle plastics can make bicycles lighter. The properties of nylon material Nylon (PA) has good comprehensive properties, including mechanical properties, heat resistance, wear resistance, chemical resistance and self-lubrication, and has a low coefficient of friction, a certain flame retardancy, easy processing, and is suitable for use Glass fiber and other fillers are filled and reinforced to improve performance and expand application range. Nylon is a tough angular translucent or milky white crystalline resin. The molecular weight of nylon as an engineering plastic is generally 15,000-30,000. Nylon has high mechanical strength, high softening point, heat resistance, low friction coefficient, wear resistance, self-lubrication, shock absorption and noise reduction, oil resistance, weak acid resistance, alkali resistance and general solvent resistance, good electrical insulation, and has Self-extinguishing, non-toxic, odorless, good weather resistance, poor dyeability. The disadvantage is that the water absorption is large, which affects the dimensional stability and electrical properties. Fiber reinforcement can reduce the water absorption of the resin, so that it can work under high temperature and high humidity. Nylon has a very good affinity with glass fiber. It is often used to make combs, toothbrushes, clothes hooks, fan bones, net bag ropes, fruit outer packaging bags, etc. Non-toxic, but not long-term contact with acid and alkali. It is worth noting that after adding glass fiber, the tensile strength of nylon can be increased by about 2 times, and the temperature resistance is also improved accordingly. The shrinkage rate of nylon is 1% to 2%. Toughened nylon 6 (PA6): has high impact resistance; super tough nylon 66 (PA66): has high impact resistance and low temperature resistance; reinforced and toughened nylon 6 (PA66): has excellent Physical and mechanical properties; wear-resistant reinforced nylon 66 (PA66): wear-resistant, excellent physical and mechanical propertiesDetail +
This week's foreign trade event! U.S. tax hike postponed, Vietnam hikes tariffs on Chinese products, July export data, etc.
On the morning of August 13, Eastern Time, the USTR announced that the United States decided to delay the 10% tariff on some categories of Chinese goods until December 15, including mobile phones, laptop computers, electronic game consoles, computer monitors, Toys, some footwear and apparel, etc.Detail +