A proposed procedure for expressing the behavior of a full engine cycle by identifying its critical load timings

• Published in: IOP conference series. Materials Science and Engineering 2016-11, Vol.161 (1), p.12071
• Main Authors: Andrei, Mihalache Marius, Gheorghe, Nagit, Gavril, Musca, Vasile, Merticaru, Ionut, Ripanu Marius
• Format: Article
• Language: English
• Subjects: Algorithms; Connecting rods; Finite element method; Loads (forces)
• ISSN: 1757-8981; 1757-899X
• DOI: 10.1088/1757-899X/161/1/012071

In the present study the authors propose a new algorithm for identifying the right loads that act upon a functional connecting rod during a full engine cycle. The loads are then divided into three categories depending on the results they produce, as static, semi-dynamic and dynamic ones Because an engine cycle extends up to 720°, the authors aim to identify a method of substitution of values that produce the same effect as a previous value of a considered angle did. In other words, the proposed method aims to pin point the critical values that produce an effect different as the one seen before during a full engine cycle. Only those values will then be considered as valid loads that act upon the connecting rod inside FEA analyses. This technique has been applied to each of the three categories mentioned above and did produced different critical values for each one of them. The whole study relies on a theoretical mechanical project which was developed in order to identify the right values that correspond to each degree of the entire engine cycle of a Daewoo Tico automobile.