Load spectra of CNC machine tools

General Cutting Load Model for Workload Simulation in Spindle Reliability Test

“…As the key functional component of CNC machine tools, the reliability level of the spindle directly determines the operating rate of machine tools [1]. The spindle reliability test is an effective means to stimulate the potential faults and evaluate the reliability by applying reasonable environmental and working condition stress [2]. As such, it is important to design a suitable test platform together with reasonable experimental plans to carry out the spindle reliability test.…”

“…(1) Complex geometric shapes and tool parameters should be considered, thus complicating their application in engineering. (2) The existing load model mainly focuses on the load on the cutting edge and workpiece, which cannot completely reflect the effect of load on the spindle. (3) Most of the existing load models are devoted to the accurate simulation of a single machining process and cannot represent all machining processes.…”

General Cutting Load Model for Workload Simulation in Spindle Reliability Test

“…As the key functional component of CNC machine tools, the reliability level of the spindle directly determines the operating rate of machine tools [1]. The spindle reliability test is an effective means to stimulate the potential faults and evaluate the reliability by applying reasonable environmental and working condition stress [2]. As such, it is important to design a suitable test platform together with reasonable experimental plans to carry out the spindle reliability test.…”

“…(1) Complex geometric shapes and tool parameters should be considered, thus complicating their application in engineering. (2) The existing load model mainly focuses on the load on the cutting edge and workpiece, which cannot completely reflect the effect of load on the spindle. (3) Most of the existing load models are devoted to the accurate simulation of a single machining process and cannot represent all machining processes.…”

Application of power law model in reliability evaluation of machine tools by considering working condition difference

“…Working condition factors (WCFs) influence the reliability level of NC machine tools, such as cutting speed, torque, and cutting force. 5 However, working condition difference was not considered in the examination of reliability of NC machine tools using traditional method (TM). The result of reliability evaluation cannot represent true reliability level under different working conditions.…”

“…At present, there are many models to evaluate the reliability of NC machine tools. Assuming that time between failures (TBF) of NC machine tools is independently and identically distributed, the model to evaluate their reliability mainly includes Weibull, 6 log-normal, 7 exponential, 8 gamma, 5 and inverse gaussian processes. 9 However, the opposite is true in actual situations.…”

A Method for Compiling Load Spectrum of Transmission System of Wheel Loader

“…A method for prediction of load spectrum under diverse operating conditions was provided by Jernej Klemenc [1]. The load spectrum of CNC machine tools was presented by Wang Yiqiang [2]. The transmission system load spectrum of agricultural tractors and the load spectrum of semi-axle in loader were gained [3][4].…”

General Cutting Load Model for Workload Simulation in Spindle Reliability Test

“…As the key functional component of CNC machine tools, the reliability level of the spindle directly determines the operating rate of machine tools [1]. The spindle reliability test is an effective means to stimulate the potential faults and evaluate the reliability by applying reasonable environmental and working condition stress [2]. As such, it is important to design a suitable test platform together with reasonable experimental plans to carry out the spindle reliability test.…”

“…(1) Complex geometric shapes and tool parameters should be considered, thus complicating their application in engineering. (2) The existing load model mainly focuses on the load on the cutting edge and workpiece, which cannot completely reflect the effect of load on the spindle. (3) Most of the existing load models are devoted to the accurate simulation of a single machining process and cannot represent all machining processes.…”

Application of power law model in reliability evaluation of machine tools by considering working condition difference

“…Working condition factors (WCFs) influence the reliability level of NC machine tools, such as cutting speed, torque, and cutting force. 5 However, working condition difference was not considered in the examination of reliability of NC machine tools using traditional method (TM). The result of reliability evaluation cannot represent true reliability level under different working conditions.…”

“…At present, there are many models to evaluate the reliability of NC machine tools. Assuming that time between failures (TBF) of NC machine tools is independently and identically distributed, the model to evaluate their reliability mainly includes Weibull, 6 log-normal, 7 exponential, 8 gamma, 5 and inverse gaussian processes. 9 However, the opposite is true in actual situations.…”

A Method for Compiling Load Spectrum of Transmission System of Wheel Loader

“…A method for prediction of load spectrum under diverse operating conditions was provided by Jernej Klemenc [1]. The load spectrum of CNC machine tools was presented by Wang Yiqiang [2]. The transmission system load spectrum of agricultural tractors and the load spectrum of semi-axle in loader were gained [3][4].…”

General Cutting Load Model for Workload Simulation in Spindle Reliability Test

“…As the key functional component of CNC machine tools, the reliability level of the spindle directly determines the operating rate of machine tools [1]. The spindle reliability test is an effective means to stimulate the potential faults and evaluate the reliability by applying reasonable environmental and working condition stress [2]. As such, it is important to design a suitable test platform together with reasonable experimental plans to carry out the spindle reliability test.…”

“…(1) Complex geometric shapes and tool parameters should be considered, thus complicating their application in engineering. (2) The existing load model mainly focuses on the load on the cutting edge and workpiece, which cannot completely reflect the effect of load on the spindle. (3) Most of the existing load models are devoted to the accurate simulation of a single machining process and cannot represent all machining processes.…”

Application of power law model in reliability evaluation of machine tools by considering working condition difference

“…Working condition factors (WCFs) influence the reliability level of NC machine tools, such as cutting speed, torque, and cutting force. 5 However, working condition difference was not considered in the examination of reliability of NC machine tools using traditional method (TM). The result of reliability evaluation cannot represent true reliability level under different working conditions.…”

“…At present, there are many models to evaluate the reliability of NC machine tools. Assuming that time between failures (TBF) of NC machine tools is independently and identically distributed, the model to evaluate their reliability mainly includes Weibull, 6 log-normal, 7 exponential, 8 gamma, 5 and inverse gaussian processes. 9 However, the opposite is true in actual situations.…”

A Method for Compiling Load Spectrum of Transmission System of Wheel Loader

“…A method for prediction of load spectrum under diverse operating conditions was provided by Jernej Klemenc [1]. The load spectrum of CNC machine tools was presented by Wang Yiqiang [2]. The transmission system load spectrum of agricultural tractors and the load spectrum of semi-axle in loader were gained [3][4].…”