IHA-2576 Digital Hydraulics, 5 cr
Additional information
Basic knowledge about Matlab and Simulink is needed.
Person responsible
Matti Linjama
Lessons
| Implementation | Period | Person responsible | Requirements |
| IHA-2576 2019-01 | 1 - 2 |
Matti Linjama Miika Paloniitty Jyrki Tammisto |
Exam + practical work |
Learning Outcomes
Understanding the fundamental principles of digital hydraulic systems and differences to traditional hydraulic systems. Ability to dimension digital valve system and to select the most suitable valve type and coding method. Basic control principles of digital valve systems. Operation principles of digital pump-motors and multi-chamber cylinders.
Content
| Content | Core content | Complementary knowledge | Specialist knowledge |
| 1. | Static and dynamic characteristics of on/off valves. | Dynamic modelling of on/off valves. | Boosting of on/off valves. |
| 2. | DFCU - Digital Flow Control Unit, static and dynamic characteristics. | Different coding methods. | |
| 3. | Digital valve systems. Characteristics, benefits and challenges. | ||
| 4. | Model based control of DFCU and digital valve systems. | Sum flow control, simultaneous control of three or four control edges. | Steady-state model of valve-cylinder combination and its solution. |
| 5. | Digital pumps and motors. | Controllability of digital pumps and motors. | |
| 6. | Miniaturization, PNM coded systems | ||
| 7. | Pressure transients, good and bad state transitions. | ||
| 8. | Multi-chamber cylinders. |
Instructions for students on how to achieve the learning outcomes
Please take part into lectures and exercises.
Assessment scale:
Numerical evaluation scale (0-5)
Partial passing:
Study material
| Type | Name | Author | ISBN | URL | Additional information | Examination material |
| Lecture slides | Lectures | Matti Linjama | Lecture material will be delivered via Moodle. | No |
Prerequisites
| Course | Mandatory/Advisable | Description |
| IHA-1102 Hydrauliikan ja koneautomaation perusteet | Mandatory | |
| IHA-2609 Modelling of Fluid Power Components | Advisable |
Additional information about prerequisites
Basic knowledge about modelling of hydraulic systems with Simulink is needed.
Correspondence of content
| Course | Corresponds course | Description |
| IHA-2576 Digital Hydraulics, 5 cr | IHA-2570 Digital Hydraulics, 5 cr |