PENENTUAN LIFETIME MATERIAL SENJATA RINGAN SS2-V4 KALIBER 5,56MM DENGAN PENDEKATAN KEHANDALAN
DOI:
https://doi.org/10.33172/tsj.v2i1.580Abstract
Pemeliharaan persenjataan perlu mengetahui usia pakai (lifetime) material pada setiap komponen. Permasalahan yang saat ini dialami oleh satuan pemeliharaan Peralatan AD, senjata ringan khususnya Senapan SS2-V4 Kal. 5,56 mm yang masih dimiliki satuan-satuan tempur, belum mempunyai jadwal periodik penggantian part (Perodical Replacement Part/ PRP) yang dapat memprediksi lifetime material komponen dalam pemeliharaannya. Penentuan lifetime pada material komponen SS2-V4 Kal. 5,56 mm dapat diketahu dengan pendekatan kehandalan. Dengan mengidentifikasi frekuensi kerusakan komponen, komponen kritis pada senjata SS2-V4 Kal.5 56 mm dapat diketahui bahwa, yaitu pena pemukul, rakitan tangkai penegang, penahan pegas pengembali, dan pasak pembatas pena pemukul. Tahapan pemrosesan data dengan menghitung distribusi kerusakan pada komponen kritis dihasilkan nilai distribusi Weibull = 0,9913 dengan parameter ?=33,09 dan ?=3011,14, dan membuktikan laju kerusakan terjadi peningkatan. Selanjutnya, tahapan penentuan lifetime, didapatkan nilai MTTF=2961. Batas nilai reliability yang ditetapkan untuk penggantian pada setiap komponen kritis meningkatkan lifetime, yaitu pena pemukul dan pasak pembatas pena pemukul (batas reliability 90%, tembakan ke-2813) meningkatkan lifetime 32,66%, rakitan tangkai penegang (batas reliability 70%, tembakan ke-2918) meningkatkan 12,86% dan penahan pegas pengembali (batas reliability 80%, tembakan ke-2877) meningkatkan lifetime 22,79%.
Kata Kunci: Maintenance, Lifetime, Kehandalan, Komponen Kritis, SS2-V4 Kal.5, 56 mm
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