Actuation

Actuation refers to the process of converting energy into motion in various systems and devices. It’s a crucial component in a myriad of technologies, ranging from simple mechanisms to complex machinery.

Actuation is the mechanism of initiating and controlling movements in various systems, which could be mechanical, electrical, hydraulic, or pneumatic, among others. This concept is widely used in industries like robotics, automotive, aerospace, and manufacturing. It encompasses a wide range of components and techniques designed to convert various forms of energy into physical motion.

Wandfluh spool valve for larger volume flows

Wandfluh valve has a small and compact construction volume, which helps control the volume  up to 200 l/min at a pressure of up to 350 bar.

A&B Valve and Piping Systems opens Pecos office

A&B Valve and Piping Systems, LLC announced the opening of its newest location in Pecos, Texas, and the expansion of its business to include service and repair and valve actuation and automation.

Tolomatic’s high-force electric linear actuators

Some machine designers think the selection of electric high-force linear actuators is limited. But the truth is the range of electric high force actuation solutions is expanding.

New knife gate valves for water treatment

ORBINOX has launched a new range of knife gate valves created especially for water treatment applications and designed to comply with both AWWA C520-14 and MSS SP-81 standards.

A&B Valve and Piping Systems opens new office

A&B Valve and Piping Systems, LLC has announced the opening of its newest location in Pecos, Texas, and the expansion of its business to include service and repair, valve actuation and automation.

Rotarex bellows valves at WNE 2018

Rotarex joins partner Alco to showcase innovative solutions for special applications at WNE 2018 WNE is the leading event for the global nuclear energy community.

Moog Total Solution at SPS IPC Drives Italy 2018

Moog will present its Total Solution at SPS IPC Drives Italy 2018. Moog’s Total Solution offers electric, hydraulic and hybrid technologies, using a technology neutral approach whereby the company helps machine builders to use technology that will help them achieve all performance goals.

Rexroth introduces SVA

Rexroth has showcased a unique system for subsea actuation at the Offshore Technology Conference (OTC) in Houston, Texas.

AUMA turnkey solution for Pertamina tank farm

AUMA has supplied a turnkey valve automation solution to Indonesian oil and gas company Pertamina.

WVPFA10 spool valve for larger volume flows

This spool valve from Wandfluh is pilot operated by a new proportional pressure reducing valve. The main control spool can thus be controlled very precisely with a low hysteresis.

Actuation

The primary devices that carry out actuation are called actuators. These can be categorized as:

  1. Mechanical Actuators: Convert rotary motion to linear motion or vice versa, often using gears, rails, or screws.
  2. Electric Actuators: Utilize electric motors to generate motion, controlled by varying voltage, current, or electromagnetic fields.
  3. Hydraulic Actuators: Use the pressure of a liquid (usually oil) to induce motion, often to generate high forces in heavy machinery.
  4. Pneumatic Actuators: Operate using compressed air or gas to create motion, often found in industrial automation setups.
  5. Thermal or Magnetic Actuators: Leverage thermal expansion or magnetic fields to generate motion, usually in micro or nano-scale applications.

2. Control Systems

These systems are essential in regulating the functioning of actuators, often utilizing feedback loops to maintain precision and efficiency. They may include:

  1. Manual Controls: Simple interfaces like levers or switches to control actuators.
  2. Automatic Controls: Utilize sensors and microcontrollers to automatically control the actuation process.
  3. Software Interfaces: Complex control setups involving software platforms integrated with hardware components to enable sophisticated control strategies.

3. Power Sources

Different actuation systems require different power sources, which could range from electrical batteries, hydraulic pumps, or pneumatic compressors.

Applications

Actuation finds its application in various fields:

  1. Robotics: In the control of robotic arms, legs, or other appendages.
  2. Aerospace: Utilized in the functioning of various components like flaps, landing gear, and engines.
  3. Automotive: In control systems like power steering, braking systems, and throttle control.
  4. Industrial Machinery: In machines used for manufacturing, packaging, and other industrial processes.
  5. Healthcare: In devices like prosthetics and other healthcare equipment.
  6. Consumer Electronics: In gadgets and appliances, for functions like zooming in cameras or adjusting settings.

Future Trends

With advancements in technology, actuation systems are expected to become more sophisticated, incorporating features like:

  1. Internet of Things (IoT): Integration with IoT for smarter and more connected control systems.
  2. Artificial Intelligence (AI): Incorporating AI for predictive maintenance and automated control strategies.
  3. Miniaturization: Development of smaller and more compact actuators for use in micro and nano-scale applications.

Conclusion

Actuation is a dynamic and evolving field, playing a critical role in modern technology and industry. It encompasses a wide range of components, systems, and techniques that convert energy into physical motion, finding applications in a variety of sectors and continually evolving to incorporate new advancements and innovations.