Hydraulic oil degrades expediently during operating at elevated temperatures, and due to oil degradation, malfunction of all hydraulic components starts that hampers the hydraulic functioning of the machine. An inefficient component of the hydraulic system converts useful energy into heat. Overheating starts when the rate of heat energy escaping from the system overcomes the rate of heat dissipation. Viscosity, total acidic number (TAN), rheology, and FTIR analyses were carried out on the oil samples collected chronically, and the reasons for degradation and sludge formation were evaluated; the results showed that thermal cracking resistance capacity of the oil was low due to the imbalance percentage of additives in the base oil. Sludge impaired the system efficiency and prejudicially creates repercussions on power consumption. Sludge can be recycled for biofuel and to avoid imbalance in the ecosystem. The test result is plotted in a 3D view graph using the MATLAB R 2019 software for a better explanation. Variation in the behaviour of the hydraulic fluid with respect to time, temperature, shear stress, and shear rate was studied, and the result is validated with correlation and regression analyses.

中文翻译：

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负载运输自卸车 811MK V 机器液压油中的油泥形成分析在升高的温度下运行，用于生物能源应用

液压油在升高的温度下运行时会有利地降解，并且由于油降解，所有液压元件开始出现故障，从而阻碍机器的液压功能。液压系统的一个低效组件将有用的能量转化为热量。当从系统逸出的热能速率超过散热速率时，过热开始。对长期收集的油样进行粘度、总酸值 (TAN)、流变学和 FTIR 分析，并评估降解和油泥形成的原因；结果表明，由于基础油中添加剂的比例不平衡，油的抗热裂化能力较低。污泥会降低系统效率，并对功耗产生不利影响。污泥可以回收用于生物燃料，避免生态系统失衡。为了更好地解释，使用 MATLAB R 2019 软件将测试结果绘制在 3D 视图图中。研究了液压流体在时间、温度、剪切应力和剪切速率方面的行为变化，并通过相关性和回归分析验证了结果。