Breakaway points

In Figure 5.9, note that the loei eommenees at the open-loop poles (.v = 0, —4) when A" = 0. At A" = 4 they braneh into the eomplex spaee. This is ealled a breakaway point and eorresponds to eritieal damping. 

Breakaway points The points at whieh a loeus breaks away from the real axis ean be ealeulated using one of two methods ... 

Breakaway points None, due to complex open-loop poles. ... 

Sketch the root locus diagram for Example 7.4, shown in Figure 7.14. Determine the breakaway points, the value of K for marginal stability and the unit circle crossover. 

This position is shown in Figure 7.20. The K values at the breakaway points are also shown in Figure 7.20. 

Curve A shows two breakaway stages while curve B shows one breakaway point. An example of such behavior is the oxidation of zirconium. Tin is added to zirconium to minimize breakaway corrosion. 

Designed primarily for the firefighting industry, the new Handi Klip glove clip has a higher breakaway point and holds up to the brief flash temperatures of a fire. With its oversized jaws and interlocking teeth it will hold even the largest pair of gloves. 

The outstanding corrosion property of zirconium is its resistance to alkalies at all concentrations up to the boiling point, ft also resists fused sodium hydroxide. In this respect, it is distinguished from tantalum and, to a lesser extent, titanium, which are attacked by hot alkalies. Zirconium is resistant to hydrochloric and nitric acids at all concentrations and to <70% H2SO4 up to boiling temperatures. In HCI and similar media, the metal must be low in carbon (<0.06%) for optimum resistance. In boiling 20% HCI, a transition or breakaway point is observed in the corrosion rate (see below) after a specihc time of exposure. The... 

The Handi Klip glove clip was designed primarily for the firefighting industry due to its ability to withstand the Rash temperatures of a fire, but it is also perfect for those who need a higher breakaway point. 

Breakaway point exceeded (e.g., organic acids on stainiess steeis) ... 

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