Mesh
Mesh turns up in 2 fields: gears, electrotechnology. Here is what it means to the people in each one.
Mesh in gears
The engagement of two gears' teeth, or the zone where they meet; also the verb for gears engaging.
The meshing action of mating gears and, by extension, the pair of gears in contact. A mesh is described by its ratio, center distance, backlash, contact ratio and tooth contact pattern. Gearbox analysis treats each mesh as a source of load, heat and vibration, so a three-stage reducer has three meshes, each with its own mesh frequency.
"High-speed mesh is the noisy one, the low-speed mesh is barely audible, so start there with the accelerometer."
Mesh in electrotechnology
A closed loop in an electrical circuit that contains no other loops inside it.
A fundamental concept in circuit theory representing a single, indivisible closed path for current flow. Unlike a general loop, a mesh cannot have any smaller internal paths. It is the basic unit used to set up Kirchhoff's Voltage Law equations to solve for unknown voltages and currents in complex planar networks.
"We've three meshes in this secondary circuit, so we need a three-by-three matrix to solve it."