一、首先根據(jù)工件的大體形狀來確定工件的支撐方式、位置及激振器的裝夾位置和傳感器的位置。

比如:a、長方體的工件，在距工件端部2/9長度的位置放四個(gè)橡膠墊，激振器卡在中間或一端，傳感器放在另一端，如圖：

                    L         

         2/9L            1      2/9L      2                                   2  

                                          3   3                                              

                                          4                           1       4       

                                      圖1 

                  1、激振器  2、傳感器  3、工件  4、橡膠墊      

b、方形件或圓形件，橡膠墊在工件下面采用三點(diǎn)對(duì)稱分布，激振器在兩個(gè)墊子中間，傳感器在另兩個(gè)中間。

                                                                          2                                                                                                              

        1/3L                 1/3L                                                              

                                                                              2  

                  4                                    3                                  

                                    3                                                   

            1                 2                       4                                                 

                                                                             1                  

           圖3                                               圖4 

       1、傳感器器  2、激振器器  3、工件  4、橡膠墊      

二、各項(xiàng)準(zhǔn)備工作完后先用手動(dòng)方式操作，通過手動(dòng)可迅速判斷工件的共振頻率和激振力的大小是否合適，為下步使用全自動(dòng)做好準(zhǔn)備。

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