| 摘要 |
An elastic beam member is vibrationally driven by orbiting-mass oscillator means so as to set up a standing wave pattern therein. Means are provided to support the beam at points therealong where nodes of the standing wave appear. The beam is coupled to members to be press fitted together at one or more points therealong lying between the node and antinode of the standing wave pattern, this point being chosen to provide an optimum impedance match between the beam and such members. Means are provided to mechanically urge the members together, while sonic energy is simultaneously applied to the interface therebetween to implement the press fitting action.
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