A tuning fork behaves as two bars clamped at one end

Evidence

The first three modes of a bar resting on supports and a bar clamped at one end are shown in the upper and lower parts respectively of Figure 4.30 along with the appropriate frequency ratio to the first mode (see Table 4.1). Note that the clamped modes are those found for a tuning fork which can be considered as a pair of bars clamped at one end. — David Howard, Jamie Angus, coustics and Psychoacoustics, 1308

Categorization

• XREF: Connects bar theory to the tuning fork — a familiar object retroactively explained by clamped-bar boundary conditions.
• corroborated: 2 independent passages support this claim — David Howard, Jamie Angus, coustics and Psychoacoustics, 1308