Aggregate (technology)
The aggregate (from the Latin aggregare , “ beigesellen ”, “accumulate”) in technology, especially in electrical engineering and mechanical engineering, is a set of machines made up of several interacting individual machines, devices or devices. In most cases, a prime mover is coupled with a work machine to fulfill a specific technological function. Examples of aggregates are:
- Cooling unit : consists of a compressor , heat exchanger , pump , motor, fan , etc.
- emergency generator
- Power unit
- Engine unit
- The drive unit in the motor vehicle consists of an internal combustion engine , the gearbox and the drive shaft; in modern vehicles with hybrid drive still comes in addition electric motor added
- Transmission units
- Turbo generator : consists of a steam turbine and a generator to generate electricity ( power plant )
Business administration
Technical products are often composed of complex and varied assemblies . In business management, especially production management , the characteristic assemblies that make up a product are also known as aggregates. The number and type of units depends largely on the product in question. In the case of a car these are, for example, the engine, the body , the gearbox and the axles , in the case of an aircraft these are the fuselage , the landing gear , the wings and the jet engine or the propeller turbines . The units form the technical basis of a product and are described by basic characteristics . Each different combination of basic features results in a basic model of the product, which can be varied with additional features (equipment, functions). The combination of all basic and additional features describes a single product completely and clearly. The dismantling of products into units and their 'modular' description makes product development , production planning , contract manufacturing and processing of the customer order much easier . This modularization continues until the creation of user information accompanying the product (operating instructions).
literature
- Wilmjakob Herlyn: PPS in automotive engineering - production program planning and control of vehicles and assemblies. Hanser Verlag, Munich 2012, ISBN 978-3-446-41370-2 .
- T. Pfeifer, P. Lorenzi, R. Schmidt: Modular operating instructions. In: technical communication. 24, H. 2, 2002, p. 19.
swell
- ^ W. Herlyn: PPS in automobile construction. Hanser Verlag, Munich, 2012, pp. 79–88.