Aerospace engineering uses different magnets

Magnets in aerospace engineering have been used for decades and are designed to be used in extreme environments and to work over a long period of time.

In fact, the aerospace industry is a sector that has experienced great technological and scientific advances in recent years. Therefore, as the demands and temperatures of the challenges have increased, it has been necessary to manufacture magnets that support them and successfully accomplish many of the missions we know today.

Magnets in aerospace engineering must have a series of specific attributes that allow them to adapt to the environment in which they will be used, so that, among the basic conditions of use, they must:

• To have a reduced weight.

• To have small sizes or miniature sizes.

• Show impeccable long-term performance in the harshest conditions.

• Have a long service life.

• A reduced cost.

• Greater efficiency and maximum performance.

• Higher retention force.

• Better traction versus distance.

• Reduced amount of rare earth materials.

When designing magnets in aerospace engineering, critical requirements of tensile forces, torques, field strength, temperature and sensor specifications, among others, must be taken into account.

How do magnets help in aerospace engineering?

For example, for a critical mission, a permanent magnet can be designed to detect the position of an actuator, detect fluid flow rates, make fuel pumps and operate temperature generators.

But, also, magnets in aerospace engineering help reduce carbon and increase fuel efficiency through miniaturization with the possibility of better recyclability.

What types of magnets are used in aerospace engineering?

For this sector, compression-bound magnets, injection-moulded magnets or hybrid magnets are used. Samarium cobalt is the material commonly used in aerospace and military applications, mainly due to its high working temperature. The new grades NdFeB 30AH and 33AH could be another interesting option with a working temperature of up to 240. Magnets in aerospace engineering are used for:

• Missile programs.

• Flight control covers for both commercial and combat aircraft.

• Aircraft loudspeakers.

• Operation of the TWT radar.

• PM generator rotor assemblies.

• Fuel pump.

• Flow regulators.

• Development of cryogenic magnets for space.

• Magnetic holders for aircraft seats.

• Calibration of position and speed sensors.

• Operation of air compressors.

• Operation of motorized generators.

• Operation of tachometer generators.

Let's not forget the magnetic propulsion.

Electromagnetic propulsion is one of the great uses of magnets in aerospace engineering. In fact, in the case of submarines, the use of magnetic propulsion is fundamental, because with a propellerless, silent and maintenance-free form, it can drive a boat through the water.

The idea of electromagnetic propulsion was first developed in the 1950s precisely for submarines, and at the high speeds promised by electromagnetic propulsion would make them faster than surface ships, which are hampered by waves.

The magnetic propulsion system is applicable to all ships, such as ships, submarines, torpedoes and the like that travel in salt water. To the extent that it can be demonstrated experimentally, the device is also useful as a spatial drive system to provide thrust to a ship traveling in an ionic atmosphere, for example, space.

In practical uses of magnets in aerospace engineering, they are used for captain's cabin controls, for generating electricity with electromagnets, for wing movement, for wing performance and for helicopter propellers. At IMA we help you choose the right model of magnets in aerospace engineering according to your needs. If you have any questions, ask us.