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RANCANG BANGUN BRACKET PLATFORM PADA MESIN WELD MANIPULATOR Irawan, Benny Haddli; Cahyagi, Danang; Alwi, Abdullah; Hakim, Rahman
Jurnal Teknologi dan Riset Terapan (JATRA) Vol. 7 No. 1 (2025): Jurnal Teknologi dan Riset Terapan (JATRA) - June 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v7i1.8917

Abstract

A welding manipulator is a specialist apparatus engineered for welding extensive and elongated pipe plates on both interior and exterior surfaces, as well as in vertical and horizontal positions. During the assembly process, a challenge occurs when the platform is excessively distanced from the nozzle, complicating the operator's task with the welding manipulator. Brackets are an effective option to mitigate hazards and address issues throughout the cutting process. The aim of this research is to design and evaluate the safety of the bracket utilized for the platform component of the welding manipulator. The research utilizes Finite Element Analysis (FEA) to assess the simulated values of the safety factor and stress distribution. The findings demonstrate that the bracket design satisfies strength criteria, producing a maximum stress value of 98,327,504.00 N/m². The recorded maximum displacement is 1.094 mm, and the maximum strain is 0.00022. The computed safety factor is 2.1, indicating that the design parameters surpass established safety criteria.
Iran’s Surrogate Warfare Strategy against Israel: Geopolitical Maneuvering in the Palestine–Israel Conflict (October 2023–June 2025) Alwi, Abdullah; Sumadinata, R. Widya Setiabudi; Yulianti, Dina
Jurnal Pertahanan: Media Informasi tentang Kajian dan Strategi Pertahanan yang Mengedepankan Identity, Nasionalism dan Integrity Vol 12, No 1 (2026)
Publisher : The Republic of Indonesia Defense University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33172/jp.v12i1.20153

Abstract

The Israel–Palestine conflict experienced a dramatic escalation following Hamas’s launch of the Al-Aqsa Flood Operation. The conflict triggered broader regional involvement through Iran’s network of allied forces known as the Axis of Resistance. This study analyzes Iran’s surrogate warfare strategy against Israel during the Palestine–Israel conflict from October 2023 to June 2025, focusing on how Iran externalizes the burden of war through proxy forces and technological means. A single-case study design with a qualitative approach was employed. Secondary data include statements from Iranian officials and Axis of Resistance actors obtained through official media channels, reports from think tanks, and international media coverage. Document analysis, content observation, and qualitative content analysis were conducted following Yin, (2018) framework. The study identifies four key dimensions of Iran’s surrogate warfare strategy: (1) delegation and outsourcing to non-state actors, including Hezbollah, Hamas, the Houthi forces, and Iraqi resistance groups; (2) political efficiency achieved through plausible deniability while maintaining strategic influence; (3) multi-level contestation across military, diplomatic, and technological domains; and (4) a strategic shift from indirect confrontation toward a highly limited direct confrontation during the 12-day war in June 2025. Surrogate warfare enabled Iran to project power without direct involvement in the early stages; however, challenges of control and strategic blowback eventually forced limited direct military confrontation with Israel. Iran’s surrogate warfare represents an adaptive response to conventional military asymmetry but faces inherent limitations in controlling autonomous proxy actors and preventing unintended escalation. The transition to direct warfare in June 2025 indicates that surrogate strategies alone cannot address existential security threats, potentially reshaping the dynamics of regional conflict and the future applicability of indirect warfare doctrines.