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Modelling and Disturbance Compensation of a Permanent Magnet Linear Motor with a Discontinuous Track
(Lappeenranta-Lahti University of Technology LUT, 2019-06-11)
It is very common that industrial applications require linear motion in some part of the process, especially in transportation of products from place to place. Traditional technologies to produce short-distance linear ...
Methods for lifecycle support of hydraulically actuated mobile working machines using IoT and digital twin concepts
(Lappeenranta-Lahti University of Technology LUT, 2019-10-25)
The Internet of Things and Digital Twins are popular but quite distant concepts nowadays. Many problems arise along the efforts of combining these concepts. This research work focuses on these problems and considers the ...
On weldability of thick section austenitic stainless steel using laser processes
(Lappeenranta-Lahti University of Technology LUT, 2019-10-25)
Laser welding and its different process variations using filler metal addition have increasingly become the preferred joining technology of the metal structure fabrication industry.
The essential characteristics of laser ...
Recognizing required changes to higher education engineering programs’ information literacy education as a consequence of research problems becoming more complex
(Lappeenranta University of Technology, 2018)
Challenges in the Earth’s sustainable development set requirements to modern engineering education. Engineers face complex problems, which need to be solved to keep the planet viable for future generations. This study was ...
Dependence of manufacturing parameters on the performance quality of welded joints made of direct quenched ultra-high-strength steel
(Lappeenranta University of Technology, 2018-09-29)
The use of ultra-high-strength steels (UHSS) has increased in the engineering industry during past decades especially in the fields of welded structural applications where products are required to possess a specific ...
Mechanical Design Guidelines of an Electric Vehicle Powertrain
(Lappeenranta-Lahti University of Technology LUT, 2019-02-01)
The tendency of alternating fossil energy sources with state-of-the-art renewable energy resources is spreading in most contemporary fuel consuming applications, and transportation, as one of the essential human needs, is ...
An experimental and theoretical investigation of power losses in planetary gearboxes
(Lappeenranta University of Technology, 2018-10-12)
Gearboxes based on planetary gear sets are preferred for their advantages, such
as higher gear ratios, improved self-centering capabilities, kinematic flexibility,
favorable bearing support conditions and higher power ...
Improving the environmental safety of ash from bioenergy production plants
(Lappeenranta University of Technology, 2018-12-14)
Each year, energy production plants in Eastern Finland produce just under 100,000 tonnes of different types of ash and slag in the process of energy production. The utilisation of energy production ash flows has made ...
Active residential customer in a flexible energy system — a methodology to determine the customer behaviour in a multi-objective environment
(Lappeenranta University of Technology, 2018-12-05)
The transformation from passive into active end customers in modern energy systems has already started in many European countries, and it is a long process. The first step to engage residential customers to be active actors ...
Fiber laser and hybrid welding of T-joint in structural steels
(Lappeenranta University of Technology, 2018-12-14)
Laser welding processes are amongst the most versatile joining technologies, suitable for both, small scale and mass production. The advancements in laser sources and optics is allowing autogenous laser beam welding to ...