Latest Basics of Design Engineering Content

Dc motors are energized or started by manually operated switches or magnetically operated contactors.

Automatic and manual vehicle transmissions have always been competitive with each other.

In order to control noise, designers must first determine where the noise source or sources are how much each is contributing to the overall level, and their frequency signatures.

Bearings that require a separate pressurized lubrication system need more space than self-lubricating types.

Many displays are difficult to read when viewed in sunlight.

Valves are essential elements for controlling fluid system performance.

Commercial quality "aircraft" grade cable and wire rope are mechanical devices consisting of multiple wires or strands, helically wound or laid about an axis.

In addition to resisting HCl at all concentrations and at temperatures above the boiling temperature, zirconium and its alloys also have excellent resistance in sulfuric acid at temperatures above boiling and concentrations to 70%.

Sealants are categorized as hardening and nonhardening.

Epoxy polymers are cured to form thermoset resins by either homopolymerization of epoxy groups with themselves, or reaction with curing agents such as anhydrides, amines, and novolacs.

Simple control tasks can be candidates for pneumatic, electropneumatic, and hybrid pneumatic controls.

Intensifiers, also known as boosters, use a large quantity of low-pressure fluid to produce a smaller quantity of higher-pressure fluid.

Rolling-element bearings consist of ball bearings and roller bearings.

In recent years, power transmissions in the 0 to 3-hp range are mostly dc drives.

Acrylic-styrene-acrylonitrile (ASA) polymers are amorphous plastics which have mechanical properties similar to those of ABS resins.