CHAPTER 5 EXPERIMENTATION 5.1 Spure gear terms and concept Figure 13: Terminology definitions for spur gears Addendum: The radial distance from the pitch circle to the outside diameter Dedendum: The radial distance between the pitch circle and the root diameter Circular thickness: The distance of the arc along the pitch circle from one side of a gear tooth to the other Circular pitch: The length of the arc of the pitch circle from one point on a tooth to the same point on the adjacent tooth Pitch diameter: The diameter of the pitch circle Outside diameter: The major diameter of the gear Root diameter: The diameter of the root circle measured from the bottom of the tooth spaces Chordal addendum: The distance from the top of the tooth to the chord connecting the circular thickness arc Chordal thickness: The thickness of a tooth on a straight line or chord on the pitch circle Whole depth: The total depth of a tooth space equal to the sum of the addendum and dedendum Working depth: The depth …show more content…
Pressure angle: The angle between a tooth profile and a radial line at the pitch circle. Center distance: The distance between the centers of the pitch circles TABLE 1: SPURE GEAR FORMULAS 5.2 Experimental Set Up The experiment test-bed is composed of a DC motor, an engine, a chain drive, a shaft and other accessorial components. The DC motor is used to drive the engine shaft and its speed can be up to 1450 r/min. Figure 14: Experimental set up Figure 15: Experimental set up front view Figure 16: Dimmer Stator Figure 17: Gear location in engine Figure 18: Healthy gear Figure 19:1teeth removed Figure 20:2 teeth
2.6 Why is the line curved rather than straight? What kind of distance is being computed here?
Tooth surfaces are referred to by various names in dentistry, including mesial, distal, buccal, and lingual. If you drew a midline t...
This shows that there is a difference of 2cm between A and B, and B
Dentistry is a health science that includes the study and application of measures designed to prevent damage of the oral structures and the use of clinical procedures that that restore the normal masticatory function of teeth and esthetics, correction of speech resulting from loss of natural teeth, satisfaction and comfort of the patient, preservation of alveolar bone and tempromandibular joints. Other goals are to relief pain, treatment of a disease and maintaining the restoration for a long time in the denture without distortion or fracture.
CHC or CAC, the slope of the isotherm increases until the CMC and then flattens out.8
Trigonometric ratios are something you would hope to never use, but this term I was forced to find the height of a given eucalyptus tree. No instructions were given for this task other than the fact that I was not allowed physically measure the tree itself. The tools I was given were a large protractor and a measuring tape. I immediately sat down and thought why we were given the specific tools. I soon came up with a theory knowing that If I can find an angle that lines up with the top of the tree (θ) and the adjacent side (length
"eroded in 3 places over a 1.3 inch length up to a maximum depth of.171 inches.
Fixed bridge (3 units)- Outline tooth crowns and place an X through tooth root to indicate which tooth is the pontic.
...for each individual tooth which gave them the look and feel of brand new teeth. These teeth were fitted to the people’s mouth and mounted down with steel springs ("Technology Timeline.").
If I were using a cut out of length 1cm, the equation for this would
A calculus, also known as a tooth, usually present on the surface of the tooth at the opening of the salivary gland.
pressure is the pressure of the blood in the circulatory system, often measured for diagnosis since
The anchorage preparation was such that all the molars and premolars were tipped distally with the distal marginal ridge of the second molar being located below the gum level.
be the height of the ramp which in turn would affect the angle of the
My method of working is that I will start off by completing the tests involving the number of paperclips. I will then move on to the rotor length tests, which will all be carried out with a standard weight of one paperclip. All tests will be repeated three times, and averages will be taken, as this will rule out the possibility of anomalous results. The rotor lengths will be recorded in centimetres. Predictions.