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This chapter discusses the energy principle and approximated solution of energy systems. The principles of least action, variational theory, energy principles, and approximate solutions using variational methods in electrical and mechanical engineering are mainly discussed. Variational theory and energy principle are explained based on various example problems. Following these, approximate solution methods using variational methods are explained based on various example problems. The chapter is concluded by the conclusions and exercise problems.

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Energy Principle and Approximated Solution of Energy Systems

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  • 发表日期：

    2025年

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  • Masaaki Okubo

摘要

This chapter discusses the energy principle and approximated solution of energy systems. The principles of least action, variational theory, energy principles, and approximate solutions using variational methods in electrical and mechanical engineering are mainly discussed. Variational theory and energy principle are explained based on various example problems. Following these, approximate solution methods using variational methods are explained based on various example problems. The chapter is concluded by the conclusions and exercise problems.