INVESTIGATION OF VIBRATION BEHAVIOR OF FR4 AND ALUMINUM PCB MATERIALS USING THE MAC METHOD

Enes Çal; Barış Ediz; Fahri Berk Bilbay; Betul Gulcımen Cakan

Makale detayları

INVESTIGATION OF VIBRATION BEHAVIOR OF FR4 AND ALUMINUM PCB MATERIALS USING THE MAC METHOD

Yazarlar:

Enes Çal | Barış Ediz | Fahri Berk Bilbay | Betul Gulcımen Cakan

Yayıncı:

Bursa Uludağ University

Ana Başlıklar:

Makine Mühendisliği (Diğer)

Dergi:

Uludağ Üniversitesi Mühendislik Fakültesi Dergisi Vol.30 Issue 1, pp.67-86

Belge Tipi:

Makale

Yayın Tarihi:

4/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001344284

pISSN:

2148-4155

Anahtar kelimeler:

Özet:

 In this study, plates made of two different materials used in PCB Printed Circuit Board, FR4 and Aluminum, have been investigated by experimental modal analysis EMA and finite element method FEM modal analysis. Firstly, dynamic structural characteristics of plates, consisting of modal shapes, natural frequencies have been calculated by the help of ANSYS R23 software. Afterwards, to determine the vibrational characteristics of the plates by EMA, roving hammer, roving accelerometer, and modal shaker tests have been performed by the help of DEWESOFT data acquisition hardware and its corresponding software. Frequency response function FRF is measured by EMA software and FRF were exported to be analyzed by MEScope modal analysis software. In MEScope software, FRFs between excitation points and measurement points were matched with corresponding points of the structure geometry. Modal assurance criteria MAC were calculated between the EMA and FEA modal shapes. Results of impact hammer test method obtained to closer to the results of numerical analysis than other methods. It has also been observed that the dimensions of the variable plates affect the MAC results. Additionally, importance of the gravity and mass balance on the structure were analyzed specially for thin structures, indicated actions to cope with mass balance issue.

 In this study, plates made of two different materials used in PCB Printed Circuit Board, FR4 and Aluminum, have been investigated by experimental modal analysis EMA and finite element method FEM modal analysis. Firstly, dynamic structural characteristics of plates, consisting of modal shapes, natural frequencies have been calculated by the help of ANSYS R23 software. Afterwards, to determine the vibrational characteristics of the plates by EMA, roving hammer, roving accelerometer, and modal shaker tests have been performed by the help of DEWESOFT data acquisition hardware and its corresponding software. Frequency response function FRF is measured by EMA software and FRF were exported to be analyzed by MEScope modal analysis software. In MEScope software, FRFs between excitation points and measurement points were matched with corresponding points of the structure geometry. Modal assurance criteria MAC were calculated between the EMA and FEA modal shapes. Results of impact hammer test method obtained to closer to the results of numerical analysis than other methods. It has also been observed that the dimensions of the variable plates affect the MAC results. Additionally, importance of the gravity and mass balance on the structure were analyzed specially for thin structures, indicated actions to cope with mass balance issue.

 In this study, plates made of two different materials used in PCB Printed Circuit Board, FR4 and Aluminum, have been investigated by experimental modal analysis EMA and finite element method FEM modal analysis. Firstly, dynamic structural characteristics of plates, consisting of modal shapes, natural frequencies have been calculated by the help of ANSYS R23 software. Afterwards, to determine the vibrational characteristics of the plates by EMA, roving hammer, roving accelerometer, and modal shaker tests have been performed by the help of DEWESOFT data acquisition hardware and its corresponding software. Frequency response function FRF is measured by EMA software and FRF were exported to be analyzed by MEScope modal analysis software. In MEScope software, FRFs between excitation points and measurement points were matched with corresponding points of the structure geometry. Modal assurance criteria MAC were calculated between the EMA and FEA modal shapes. Results of impact hammer test method obtained to closer to the results of numerical analysis than other methods. It has also been observed that the dimensions of the variable plates affect the MAC results. Additionally, importance of the gravity and mass balance on the structure were analyzed specially for thin structures, indicated actions to cope with mass balance issue.

 Bu çalışmada, PCBde Baskılı Devre Kartı kullanılan iki farklı malzeme olan FR4 ve Alüminyumdan yapılmış plakalar, deneysel modal analiz EMA ve sonlu elemanlar yöntemi FEM modal analizi ile incelenmiştir. İlk olarak, plakaların modal şekilleri, sönümleme oranları, doğal frekanslarından oluşan dinamik yapısal özellikleri ANSYS R23 yazılımı yardımıyla hesaplanmıştır. Daha sonra, plakaların titreşim özelliklerini EMA ile belirlemek için DEWESOFT veri toplama donanımı ve yazılımı ile birlikte darbe çekici gezdirme, ivmeölçer gezdirme ve modal sarsıcı testleri gerçekleştirilmiştir. Frekans tepki fonksiyonu FRF, EMA yazılımı ile ölçülmüş ve FRFden elde edilen veriler numerik analiz ile karşılaştırılmak için MEScope yazılıma aktarılmıştır. MEScope yazılımında, tetikleyici noktalar ile ölçüm noktaları arasındaki FRFler yapı geometrisinin ilgili noktaları ile eşleştirilmiştir. EMA ve FEA modal şekilleri arasında modal güvence kriterleri MGM hesaplanmıştır. Darbe çekici test yönteminin sonuçlarının diğer modal test yöntem sonuçlarına göre, numerik analizlere daha yakın olduğu görülmüştür ve mod şekillerinin benzerliği açıklanmıştır. Değişken plakaların boyutlarının MGM sonuçlarını etkilediği de gözlemlenmiştir. Ayrıca, yerçekimi ve kütle dengesinin yapı üzerindeki önemi özellikle ince yapılar için analiz edilmiş ve kütle dengesinden kaynaklanan sorunlar için aksiyonlar belirtilmiştir.

Makale detayları

INVESTIGATION OF VIBRATION BEHAVIOR OF FR4 AND ALUMINUM PCB MATERIALS USING THE MAC METHOD

Yazarlar:

Enes Çal | Barış Ediz | Fahri Berk Bilbay | Betul Gulcımen Cakan

Yayıncı:

Bursa Uludağ University

Ana Başlıklar:

Makine Mühendisliği (Diğer)

Dergi:

Uludağ Üniversitesi Mühendislik Fakültesi Dergisi Vol.30 Issue 1, pp.67-86

Belge Tipi:

Makale

Yayın Tarihi:

4/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001344284

pISSN:

2148-4155

Experimental Modal Analysis

Finite Element Modal Analysis

MAC

VibrationDeneysel Modal Analiz

Sonlu Elemanlar Modal Analizi

MGM

Titreşim

Sayı

Makale detayları

Yazarlar: Enes Çal | Barış Ediz | Fahri Berk Bilbay | Betul Gulcımen Cakan

Yayıncı: Bursa Uludağ University

Ana Başlıklar: Makine Mühendisliği (Diğer)

Dergi: Uludağ Üniversitesi Mühendislik Fakültesi Dergisi Vol.30 Issue 1, pp.67-86

Belge Tipi: Makale

Yayın Tarihi: 4/2025

Belge Dili: İngilizce

Document ID (Org No.): 2001344284

pISSN: 2148-4155

Sayı

Yazarlar:

Enes Çal | Barış Ediz | Fahri Berk Bilbay | Betul Gulcımen Cakan

Yayıncı:

Bursa Uludağ University

Ana Başlıklar:

Makine Mühendisliği (Diğer)

Dergi:

Uludağ Üniversitesi Mühendislik Fakültesi Dergisi Vol.30 Issue 1, pp.67-86

Belge Tipi:

Makale

Yayın Tarihi:

4/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001344284

pISSN:

2148-4155