Design, Development and Performance Evaluation of  Manure Spreader- A Review

Kumar, C. Naveen; Chakravarthi, N. L. Kalyan

doi:10.20546/ijcmas.2019.809.293

Cited by 1 publication

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“…Experiments show that they can accurately express the pronunciation and telepathy performance of each string. It further shows that it can be used for the comparison of pronunciation and telepathy performance of different violins [25];…”

Section: Performance Analysis Of Violin Articulation With Timementioning

confidence: 93%

Design of the Violin Performance Evaluation System Based on Mobile Terminal Technology

Lin

2022

Mathematical Problems in Engineering

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In order to solve the problem that violin performance evaluation is too subjective, this paper proposes a violin performance evaluation system based on mobile terminal technology. Violin sound evaluation mainly includes two indicators such as pronunciation quality and distance transmission ability. LabVIEW 8.2 is used to collect data, and fast Fourier transform (FFT) is used to analyze the time-domain signal in frequency domain, and the pronunciation process of violin is discussed in depth. Using statistical methods to process the test data of pronunciation distance transmission, a parameter model representing the pronunciation distance transmission ability is proposed, and finally the WeChat applet is used to control the recording and display. The results show that the process of violin sound production is accompanied by the weakening of octave peaks and the development of overtone peaks. The stable stage is marked by the stability of each octave peak and overtone peak. The sound head initially presents a simple excitation response, with only one near octave overtone and three cycles. Its maximum overtone peak/dominant frequency peak ratio coefficient is k = 0.36; the back entry complex excitation response has about nine cycles, with k = 0.735. Then enter the quasi-stable excitation response, whose waveform is similar to the typical A-string empty string pull waveform in the later stage, with k = 0.36; the maximum overtone peak/main frequency peak proportional coefficient is k = 0.39 in the rising section of the start, k = 0.2 in the loudest section, and k = 0.26 in the stable section. Conclusion. The system has initially established a new instrumented evaluation method, which provides a way of thinking for improving the quantifiable evaluation system in the future.

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Section: Performance Analysis Of Violin Articulation With Timementioning

confidence: 93%

Design of the Violin Performance Evaluation System Based on Mobile Terminal Technology

Lin

2022

Mathematical Problems in Engineering

View full text Add to dashboard Cite

show abstract

Design, Development and Performance Evaluation of Manure Spreader- A Review

Cited by 1 publication

References 4 publications

Design of the Violin Performance Evaluation System Based on Mobile Terminal Technology

Design of the Violin Performance Evaluation System Based on Mobile Terminal Technology

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