Main Article Content
THE PRESENT PAPER PROPOSES A NEW PROCEDURE TO DETERMINE THE OPTIMAL PARAMETERS OF A DYNAMIC VIBRATION ABSORBER (DVA), CONSIDERING BOTH DAMPED AND UNDAMPED PRIMARY SYSTEM. THE DVA DESIGN IS FORMULATED AS AN OPTIMIZATION PROBLEM IN WHICH THE OBJECTIVE FUNCTION IS CONSTRUCTED BASED ON DEN HARTOG'S EQUAL-PEAK METHOD. THE DVA PARAMETERS ARE SELECTED TO MINIMIZE THE RESPONSE OF THE PRIMARY SYSTEM WHEN IT IS SUBJECTED TO HARMONIC FORCE OR BASE MOTION. FIRSTLY, WE PROPOSE A NUMERICAL STRATEGY BASED ON FREQUENCY RESPONSE CURVE (FRC) IN WHICH THE PARAMETERS OF THE ABSORBER ARE UPDATED BY MINIMIZING THE OBJECTIVE FUNCTION. THE RESULTS ARE PRESENTED FOR A SET OF REFERENCE PARAMETERS, WHICH DEMONSTRATE THE FEASIBILITY OF THE PROPOSED METHOD FOR DETERMINING THE OPTIMAL PARAMETERS OF THE ABSORBER FOR BOTH EXCITATIONS. TAKING INTO ACCOUNT THE SYSTEM RESPONSE WITH RESPECT TO REFERENCE PARAMETERS, THE BILINEAR INTERPOLATION TECHNIQUE WAS EMPLOYED IN ORDER TO OBTAIN EXPLICIT FORMULAS OF THE DAMPING AND FREQUENCY RATIOS OF THE DVA.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License [CC BY] that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).