6. CONCLUSÕES E DESDOBRAMENTOS DO TRABALHO
6.1. Desdobramentos do Trabalho
A partir dos resultados encontrados nesse trabalho é possível dizer que foi desenvolvida uma simulação numérica capaz de representar, de forma satisfatória, o comportamento de máquinas rotativas no domínio do tempo com um custo computacional não proibitivo. Além disso, foi desenvolvido um método de identificação de desbalanceamento, sem necessidade de massa de triagem, baseado em técnicas de otimização determinísticas, que é promissor, porém em estado incipiente. Assim, são sugeridas possíveis desdobramentos da pesquisa, assim como novas etapas para aprimorar os métodos desenvolvidos:
Investigação do efeito não linear para outras geometrias de mancais hidrodinâmicos, como por exemplo: mancais elípticos, trilobulares e segmentados, de modo a saber se apresentam comportamento com maior ou menor grau de não linearidade que o mancal cilíndrico;
Utilização da técnica de ajuste das forças hidrodinâmicas para modelar as geometrias de mancais hidrodinâmicas apresentadas no item anterior, além da aplicação dessa técnica para rotores mais complexos;
Investigação do uso de outros tipos de expansão para o ajuste das forças hidrodinâmicas, como por exemplo a expansão em série de Fourier;
Nesse trabalho o método de identificação de desbalanceamento foi utilizado de forma a contemplar apenas uma massa desbalanceada. No entanto, aumentando o número de massas desbalanceadas contempladas é possível representar melhor o desbalanceamento ao longo do rotor. Assim, é interessante expandir o método para contemplar mais de uma massa de desbalanceamento por identificação, o que pode melhorar o posterior balanceamento do sistema;
Também para o método de identificação, o vetor da DFT foi utilizado para determinar a função objetivo. Porém, nessa abordagem, pode-se estar ajustando valores residuais que atuam de forma negativa para a correta identificação do desbalanceamento. Assim, é sugerido um novo estudo utilizando somente as harmônicas mais importantes do espectro de frequências como 1x, 2x e 3x;
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