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Sangriyadi Setio
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Mechanical Engineering

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RESPONS STOKASTIK SISTEM DINAMIK NON-LINIER DENGAN n DERAJAT KEBEBASAN Sangriyadi Setio; Wiranto Arismunandar
Mesin Vol. 11 No. 1 (1996)
Publisher : Mesin

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Abstract

Fenomena loncatan yang terdapat pada suatu sistem dinamik non-linier deterministik, telah lama dlkenal dengan baik. Tetapi pada sistem non-linier acak, fenomena ini sangat kurang dikenal. Secara alami sebagian besar strulkrur mengalami gaya-gaya luar yang sifatnya acak dan penyelesaian stokastik dari suatu sistem non-linier telah menarik perhatian banyak peneliti pada akhir-akhir ini. Pada tulisan ini akan diperlihatkan bahwa fenomena loncatan dapat dihasilkan dan suatu system non-linier yang mengalami gaya eksitasi luar acak. Masalah akan diselesaikan dengan menggunakan persamaan diferensial stokastik Ito, dan persamaan momen yang tak terbatas akan dibatasi dengan menggunakan bantuan metode Gauss tertutup.
KONTROL AKTIF KEKAKUAN DAN MASSA STRUKTUR DENGAN MENGGUNAKAN JARINGAN SARAF TIRUAN Sangriyadi Setio; Herlien D Setio; Wiranto Arismunandar
Mesin Vol. 18 No. 1 (2003)
Publisher : Mesin

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This paper presents a theoretical and experimental study on active control structure excited by seismic loads using artificial neural network Artificial neural network is used to calculate the control force based on acceleration of the structure which is obtained by accelerometer measurement. The control mechanism is implemented on the structure using active stiflness and mass based on continuous vibration measurement. The reability of the active control system with artificial neural network has been tested experimentally using a reduced model of two=storey steel flame excited by base acceleration through a small shaking table. The experimental study shows that the artificial neural network control method gives satisfactory results for many types of base excitation such as random and El-Centro N-S earthquake accelerations. The neuro control algorithm is simple and reduces consideranbly computational time.
Co-Authors Herlien D Setio Wiranto Arismunandar