High temperature magnetic data

Source: Bearing network time: 2014-09-28

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In the bearings we usually use; the key points of the original materials are now very clear. Today I want to analyze with us the characteristics of a special magnetic bearing imported components - high temperature magnetic data. High temperature magnetic data; The key to the success of a new type of weapon equipment. Complete the core skills of the new power system (electric system); include high-energy integrated power supply, main propulsion starter built in starter/generator set and non-touch magnetic bearing. Operating temperature of integrated power supply equipment; Currently limited to 300 Â° C / or so; however; the second generation of electric space shuttle (MEAII) is scheduled to operate in 500 ~ 600 Â° C by 2005. The University of Texas Austin Electromechanical Intermediate (UT-CEM) is for the US Department of Defense New hybrid electric combat vehicle development weapon system flywheel communication generator for pulse power supply; and equipment adjustment power supply for electric bombing equipment. This communication generator is also the power source for induction traction motors for propulsion and full active electromagnetic suspension systems; Stored energy up to 25MJ per 20,000 rpm, intermittent operation of the weapon system; must supply peak power of 5MW; Power up to 350kW; used to propel the associated load. High-speed starter operation; can push the temperature of the starter/generator magnetic data to above 400 Â°C; and the demand can accept 825MPa stress. Due to core loss and air pump loss; rotor data The actual operating temperature will also be affected by the thermal effects of the spin-connected rotor. High stress and high operating temperature; will cause the electromechanical components to creep and deform. Thus; the electric system requires high-speed starters/generators to be integrated into the main propulsion Initiate the machine; and can work in large stress, high temperature, air-cooled environment; use leading magnetic bearings; get the advantages of smooth and collision-free starter as a whole. US military business unit, NASA and aviation The industrial sector is very interested in magnetic bearings; special emphasis is placed on high temperature use; as they plan to use it as a component of the future gas turbine starter (spindle), an integrated power supply and a rotor of a larger main propulsion generator; both are supported by magnetic force; Eliminate conflicts and corresponding wear. Bearings depicted with permanent magnets are smaller than bearings with soft magnetic data. The operating temperature of the data is much lower than that of soft magnetic data. The maximum radial operating temperature of the large turbine fan is higher than 550 Â°C; the rotating energy storage equipment in the aerospace power system; may always be at the world pole temperature In addition, the electromechanical operation system and secondary power supply for flying control; also need to develop high-temperature magnetic body; to optimize the flight system depiction. The US military is actively developing high-energy weapons. It is planned to eliminate the demand for traditional ordnance by 2030. No matter the channel is built. The land is still built on the sea or in the air; these weapons require high power, light power. Follow the power attack and energy storage skills; continue to improve the growing power power, self-starting, high-speed magnetic bearing work and electromechanical components Air cooling; these become the key issues. Magnetic data with higher operating temperatures; it helps to describe and improve all of this. Follow the continuous development of military and civilian electrical and mechanical stress; to improve the overall function; the demand for the power system Also progress. Develop power generation, distribution, and power systems at higher speeds and temperatures; this is a non- Significant new development trend of magnetic data series;. Can be used to perform advanced key.

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