Sökning: "tooth contact analysis"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden tooth contact analysis.

1. 1. Analyses of Spur and Helical Gears

   Författare :Anette Andersson; Maskinelement; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vacuum technology; vibration and acoustic engineering; Maskinteknik; hydraulik; vakuumteknik; vibrationer; akustik; hydraulics; Teknik; Mechanical engineering; Technological sciences; misalignment; contact ratio; load distribution; transmission error; tooth contact analysis;

   Sammanfattning : The thesis contains three papers that comprise studies of the dynamic behaviour of involute spur and helical gears, and one paper that describes a method to determine the influence of misalignment on the static helical gear tooth stress. In the first study, the influence of the contact ratio on the dynamic response of a spur gear was examined. LÄS MER

3. 2. On tribological design in gear tooth contacts

   Författare :Ellen Bergseth; Ulf Olofsson; Karsten Stahl; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; friction; gear contact; gear manufacturing; surface boundary layers; surface topography; wear;

   Sammanfattning : The correct tribological design will have a considerable effect on a gear’s service life and efficiency. The purpose of this thesis is to clarify the impact of variation in the gear tooth flank tribological system on the gear contact load capacity – to increase the understanding of how surface topography and lubricant interact. LÄS MER

4. 3. Tooth Interior Fatigue Fracture&Robustness of Gears

   Författare :Magnus MackAldener; KTH; []
   Nyckelord :Gear; TIFF; FEM; Taguchi Method; Robustness; Interior Crack; Idler;

   Sammanfattning : The demands the automotive gear designer has to considerduring the gear design process have changed. To design a gearthat will not fail is still a challenging task, but now lownoise is also a main objective. Both customers and legalregulations demand noise reduction of gears. Moreover, thequality of the product is more in focus than ever before. LÄS MER

5. 4. Single implants in the anterior maxilla in young adults

   Författare :Nicole Winitsky; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Background: Single anterior implants are frequently used in the treatment of patients with single anterior tooth loss. Compared with other types of implant treatments, single implants are commonly performed in younger patients where the cause of tooth loss often is non-inflammatory. LÄS MER

7. 5. Single crystal sapphire dental implants : experimental and clinical studies

   Författare :Bahman Fartash; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :edentulous mandible; implantology; sapphire dental implants; overdenture; long-term follow-up; radiography; osseointegration; peri-implant mucosa; corrosion; cell culture; animal experiments; light microscopy; scanning electron microscopy; histometri;

   Sammanfattning : The aim of this project was to evaluate single synthetic sapphire crystals as dental implants, with special reference to correlation of clinical and in vitro/in vivo methods of research. The laboratory studies confirmed chemical stability. LÄS MER