Analysis of an in-line engine crankshaft under the firing condition

Abstract

The paper presents a method for analysis of the mechanical behaviour of a crankshaft in a four-cylinder internal combustion engine. The purpose of the analysis was to study the characteristics of the shaft in which the pin and arm parts were assumed to have a uniform section in order to simplify the modal analysis. The results of the natural frequency transfer function and mode shape were compared with those obtained by experimental work. The results obtained from the comparison showed good agreement with each other and consequently verified the analysis model. Furthermore, a prediction of crankshaft characteristics under the firing condition, by using the model, was performed. The study describes a new method for analysing the dynamic behaviour of crankshaft vibrations in the frequency domain based on the initial firing stages. The new method used root mean square values to calculate the energy at each bearing journal and balancer shape modification under the operating conditions. stage. Consideration of the load history in the time Seoul, South Korea. email: amenmy@ domain [2] under running conditions is obviously important, but the high-frequency components of yahoo.com D10304

Investigation of Sensitivity Effect Based on Mass and Stiffness Modification in Automobile Crankshaft

“…Each node was shown in Figure 1 and similar idealized model was also used in previous literature where the crankshaft was idealized by a set of jointed structures consisting of round and blocks of rectangular beam crosssection. In order to simplify the analysis, pin and arm parts were assumed to have a uniform section [4]. The previous literature discussed the sensitivity analysis method by adding the mass and stiffness whereas in this study, the method used is by reducing the mass which is the method used in real world studies.…”

Analysis of Crankshaft Fatigue Strength Based on Integrated Finite Element Model

“…Vehicles are generally overloaded products in the complex time-varying operating conditions [1]. Such a complex condition may cause structural damage.…”

Continuum element method for analysing free-vibration behaviour of crankshafts

“…Mourelatos [7] used dynamic substructuring with Ritz vectors for predicting the dynamic response of the crankshaft, which was implemented in CRANKSYM. Many studies on the free vibration characteristics of the crankshaft were realized by standard finite element method (FEM) packages, such as ANSYS/FEA and MSC/ADMAS [8][9][10][11][12][13][14].…”