Sökning: "Dynamic load"

Visar resultat 41 - 45 av 426 uppsatser innehållade orden Dynamic load.

1. 41. Structural strengthening and sustainability improvements of existing buildings – A case study

   Master-uppsats, Linnéuniversitetet/Institutionen för byggteknik (BY)

   Författare :Pardis Niknafs; [2022]
   Nyckelord :Building retrofit; structural strengthening; energy efficiency; environmental impact; integrated and sustainable intervention; cross-laminated timber; life cycle assessment;

   Sammanfattning : In Sweden, a large share of residential buildings was built more than 50 years ago. Consequently, old materials, poor maintenance, and corrosion can affect the structural performance of these buildings. Additionally, these buildings do not meet the latest energy efficiency and Eurocode regulations. LÄS MER

3. 42. Rotor Dynamic Modeling of Hydropower Rotors by 3D-Finite Element Analysis

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Författare :Simon Pääjärvi; [2022]
   Nyckelord :Rotordynamics; Applied Mechanics; Dynamics; Rotor; Finite Element Analysis; Hydropower; Solid Mechanics; Energy Production;

   Sammanfattning : By using the rotor dynamic capabilities of Simcenter Nastran Rotordynamics, an eigenvalue analysis of 3D-finite element models of the Jeffcott rotor and the overhung rotor were conducted and compared to the results with beam-based, lumped parameter models. The first two critical speeds of the Jeffcott rotor were estimated with variations of 3. LÄS MER

4. 43. Dynamic management of schedulable household assets for solar self-consumption maximization with demand side management

   Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :Tharun Narayanadhas; [2022]
   Nyckelord :Demand-side management; Mixed-integer linear programming MILP ; Photovoltaics PV ; Self-consumption; Styrning av efterfrågan; linjär programmering med blandade heltal MILP ; solceller PV ; självförbrukning.;

   Sammanfattning : A crucial challenge introduced by the decentralized installations of photovoltaic (PV) systems in the residential sector, is the mismatch between PV electricity generation and the load curve for energy consumption. To overcome this incompatibility between production and consumption, energy storage and demand response are seen as effective solutions. LÄS MER

5. 44. Life cycle analysis and comparison of climate impact for two alternative floor systems for increased weight in high-rise timber buildings

   Master-uppsats, KTH/Byggnadsmaterial

   Författare :Nir Kedem; [2022]
   Nyckelord :Life cycle assessment; LCA; Anavitor; Environmental impact; Building materials; Timber; Concrete; Gravel; Adding weight system.;

   Sammanfattning : The aim of this Master Thesis is to investigate and quantify the climate impact for two floor system alternatives for the Cederhusen project, that is the 8 floors timber-based buildings located at Sankt Eriksplan in Stockholm. The overall motivation for this study is the fact that the construction industry is a major contributor to the total amount of the global greenhouse gas emissions. LÄS MER

7. 45. Design of footbridges subjected to dynamic loading

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

   Författare :Pontus Brynk; [2022]
   Nyckelord :Dynamic design; footbridges; SETRA; pedestrian loading; Technology and Engineering;

   Sammanfattning : Modern design of steel pedestrian bridges often results in relatively light constructions with low natural frequencies were there is a considerable risk of resonance to occur from loads due to pedestrians. To resolve the problem a common solution is to increase dimensions of load bearing elements, resulting in greatly oversized elements with increasing costs and have substantial environmental impact. LÄS MER