Essays about: "modala tester"

Found 2 essays containing the words modala tester.

1. 1. Evaluation of a Contactless Excitation and Response System (CERS) for process planning applications : An experimental study

   University essay from KTH/Industriell produktion

   Author : Laura Montalban; [2016]
   Keywords : mechanical vibrations; natural frequencies; damping ratio; chatter; structural dynamic tests; stability lobe diagrams.; mekaniska vibrationer; egenfrekvens; dämpning; chatter; strukturdynamiska tester; stabilitetsdiagram.;

   Abstract : Chatter vibration is a common problem for the manufacturing industry that limits the productivity, accuracy and surface quality of machined parts. This study is focused on the out of process methods, such as Stability Lobe Diagrams (SLD), that ensure the selection of the optimal cutting parameters in which the machining process is stable. READ MORE

3. 2. Pilot Testing of a Hydraulic Bridge Exciter

   University essay from KTH/Bro- och stålbyggnad

   Author : Richard Borg; Olivier Dymén; [2015]
   Keywords : Hydraulic bridge exciter; controlled excitation; modal testing; experimental modal analysis; railway bridges; measurements; load shaker; FEM; FE-modelling; script; Hydraulisk broexciterare; kontrollerad excitering; modala tester; experimentell modal analys; järnvägsbroar; mätningar; lastexciterare; FEM; FE-modellering; script;

   Abstract : In the design of a railway bridge that is meant for train speeds larger than 200 km/h, the Swedish Traffic Administration requires a dynamic analysis in addition to the conventional static design. The models used for static design may not always be suitable for dynamic analysis, which could lead to inaccurate estimations of the dynamic response. READ MORE