By William C. Orthwein

With ease accumulating quite a few formulation, analytical equipment, and graphs for the layout and choice of a wide selection of brakes and clutches within the automobile, airplane, farming, and production industries, this convenient reference simplifies calculations, acquaints engineers with an expansive variety of functions, and assists within the choice of parameters for particular layout demanding situations.

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Copyright © 2004 Marcel Dekker, Inc. Friction Materials 13 additives just listed. The iron-based lining tends to provide a larger friction coefficient but may be more difficult to bond to its carrier plate. Temperature dependence of the friction coefficient is indirectly indicated in Figure 7, where the energy per unit mass is the energy dissipated per unit mass for a series of alternate stator and rotor plates stacked along the axis of the brake [11]. E. Carbon–Carbon Carbon–carbon brakes are made from manufactured carbon that is a composite of coke aggregate and carbon binders.

Copyright © 2004 Marcel Dekker, Inc. 14 Chapter 1 Both carbon and graphite display porosity that varies with their grades. Blocking these pores with thermosetting resins that include phenolics, furans, and epoxies produces what is known as impervious graphite. Impervious graphite, graphite, and carbon resist corrosion by acids, alkalies, and many inorganic and organic compounds [12]. Carbon–carbon linings may display a range of friction coefficients, depending upon many factors, some of which remain proprietary with the lining manufacturers.

2360 radians along with the given values into this expression yields w ¼ 1:457 in: Force F1 may be calculated for this width from equation (1-8), to get the maximum force as F1 ¼ 6409 lb The thickness of the spring steel band to which the lining is attached may be calculated from t¼ ~F wj ð4-2Þ in which ~ represents the safety factor and j represents the yield stress of the steel band. 065 in. Finally, from equation (3-4), we have b=a ¼ eAa ¼ e0:4ð5:236Þ ¼ 8:121 Although relation (3-4) may be derived from the backstop configuration using the equilibrium equation for the backstop lever, which is F1 a ¼ F2 b together with equation (1-7), use of equation (3-3) has the advantage of showing that when b/a is less than eAa, the direction of force P on the lever reverses.

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