|
Abstract:
The
transmission characteristics of the power flow and the optimum design of
vibration isolation & absorption synthetic control system of machines on
upstairs or on aboard, are studied. In view of practical vibration
control in engineering, an asymmetric flexible system with multiple
excitation forces is modeled, in which isolation & absorption technique
and substructure mobility synthetic technique are synthetically used and
universal power flow equation of the synthetic control system is
introduced. In addition, an approach to the optimum design of multi –
DVA is proposed, in which the power flow is made the control object,
Furthermore, using two parallel ends – clamped beams as flexible
foundation, various power flows are calculated and analyzed to reveal
the control mechanism of structure – borne noise of the system. By a few
small – mass DNA, optimum control of the system in wide frequency is
successfully achieved.
Key words:
Vibration
isolation Vibration absorption Power flow Optimum
design
CLC No: TH113.1 O328
山东省科委计划项目. Received 20001020,
received in revised form 20010221
|