Essays about: "mechanical vibration thesis"

Showing result 6 - 10 of 36 essays containing the words mechanical vibration thesis.

  1. 6. Research and Testing of an Electromechanical solution for Vibration Assisted Drilling of Aerospace Materials

    University essay from Uppsala universitet/Solcellsteknik

    Author : Jonathan Nordenholm; [2020]
    Keywords : vibration; drilling; chips; aerospace; advanced drilling unit;

    Abstract : This thesis considers vibration drilling in aerospace materials. The tolerances of the drilled holes in aerospace industry are very low since hole quality is an important factor. Conventional methods of drilling create long ribbon formed chips that increases the heat formation and decreases the hole quality. READ MORE

  3. 7. Standard vs. revolutionary sealing: : An investigative thesis on two methods of conceptual designing with regards to the root causes of failure mode in raw mill 7.

    University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Author : Karim Abou El Alamien; [2020]
    Keywords : Failure mode; Mechanical seal; Tribology; Raw mill; Cement; Lagerhaveri; Mekanisk tätning; Tribologi; Råkvarn; Cement;

    Abstract : The grinding rollers of raw mill 7 operate in very harsh conditions and, because of this, suffer from excessive failure mode due to lip seal deterioration. Foreign material penetrates the deteriorated lip seal and enters the bearings resulting in bearing failure. READ MORE

  4. 8. Response of Footbridges equipped with TLD : A numerical and experimental assessment

    University essay from KTH/Bro- och stålbyggnad

    Author : Silhady Tshitende Luboya; [2020]
    Keywords : Tuned liquid damper; tuned mass damper; dynamic analysis; dynamics evaluation; vibration; footbridge; human-induced vibrations; parametric study; serviceability; assessment.;

    Abstract : In recent years, an increase to design slender and aesthetically-pleasing structures have resulted in some structures having a low natural frequency. This is because the design calculation did not meet the requirement of serviceability performance. READ MORE

  5. 9. Experimental Tests of Pre - placed Aggregate Concrete for Concrete Repairs

    University essay from KTH/Betongbyggnad

    Author : Husseen Hassan; Abdifatah Sahal; [2020]
    Keywords : Shrinkage; Compressive strength; Splitting tensile strength; Freeze-thaw; resistance; Pre-placed aggregate concrete; PREPAC; Slag; Krympning; Tryckhållfasthet; Spräckhållfasthet; Frostbeständighet; Injekteringsbetong; PREPAC; Slagg;

    Abstract : Since a large part of the hydropower structures in Sweden was built in the 1950s and 1960s, many of them are slowly but surely exhibiting deterioration. The hydropower companies are facing big challenges and are consequently investing in effective repairing methods since a hydropower structure failure could pose serious consequences and dangers to people, the environment, and the community. READ MORE

  6. 10. Finite Element Modeling of Short, Randomized Fiber Composite Material

    University essay from KTH/Lättkonstruktioner

    Author : Simone Ambrogio; [2020]
    Keywords : ;

    Abstract : With the advent of hybrids and electric vehicles, the need for lightweight and highperformancematerials is growing. Sheet molding compound (SMC) is a compositemade of short and randomized  bers that o ers a substantial weight reduction andgood mechanical properties while meeting the demand for large volume production. READ MORE