Study of Pre-Tightening Force on Piezoelectric Multi-Dimensional Force Sensor’s Measurement Performance

Li, Ying Jun; Wang, Gui Cong; Li, Chang Chun; Ai, Chang Sheng

doi:10.4028/www.scientific.net/amm.117-119.656

Cited by 3 publications

(4 citation statements)

References 2 publications

(2 reference statements)

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“…Proper pre-tightening force can not only eliminate gaps and increase contact stiffness but also provide sufficient static friction between the joint surfaces of quartz wafer. The measurement of tangential force is based on the shear effect generated by static friction between wafers (Li et al, 2012). The reliable test range of dynamometer is related to factors such as pre-tightening force, the value of measured force, the performance of quartz wafer and the arrangement span of four three-component force links.…”

Section: Theoretical Modelmentioning

confidence: 99%

Research on the reliable test range of four-point supported piezoelectric dynamometer

Zhang

Ren

et al. 2022

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Purpose The purpose of this paper is to improve the reliability of the force measurement system by determining the reliable test range of dynamometer. Design/methodology/approach Based on the principle of leverage and moment balance, a general force distribution model is applicable in where the test point is located either inside or outside the support region of four three-component force links of dynamometer is established. After corroborating the correctness of the model through verification experiments, the boundary conditions that each three-component force link should satisfy are analyzed by considering the characteristic of the dynamometer components comprehensively. Furthermore, the reliable test range of dynamometer is determined, followed by a calibration experiment to verify its rationality. Findings The relationships between the reliable test range and the tested force, the bolt pre-tightening force and the bearing capacity of quartz wafers are clarified. Further, the experimental calibration results show that when the test point is within the reliable test range, the three-directional output voltage of dynamometer has excellent linearity and repeatability. The nonlinearity and repeatability in X-, Y- and Z-directions are all less than 1.1%. Originality/value A general mathematical model of force distribution of four three-component force links is constructed, which provides a theoretical basic for the mechanical analysis of multi-sensors’ dynamometer. Comprehensively considering the performance of dynamometer components, the value of measured force and the pre-tightening force, the simultaneous equations of reliable test range are deduced, which limits the boundary of allowable test position of piezoelectric dynamometer.

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Section: Theoretical Modelmentioning

confidence: 99%

Research on the reliable test range of four-point supported piezoelectric dynamometer

Zhang

Ren

et al. 2022

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“…2. The model includes such transformable touching bodies as mainframe, yaw bearing, outer ring bolt, inner ring bolt, brake flange and top flange, with each component and part being made up of low-alloy and high-tensile structural steel, modulus of elasticity being 2.06 ×10 5 MPa, Poisson ratio being 0.3 and density being 7.85 ×10 -9 t/mm 3 .…”

Section: Finite Element Analysis Modelmentioning

confidence: 99%

“…Each component and part of the model is joint up through bolts. Before imposing ultimate operating mode on the model, bolts in the model should be added with pre-tightening force, with an aim to enhance the stability, and preventable looseness of bolt joint, and fatigue strength of bolt, as well as to reinforce the tightness and rigidity [5,6] of adapting pieces. Besides, the displacement of bolt inside the surface of intersecting surface should be restricted to remove redundant rigid body displacement [7,8] .…”

Section: Boundary Conditions and Load Settings Of Static Strength Ana...mentioning

confidence: 99%

Finite Element Analysis of Top Flanged Joint System of High Power Level Wind Turbine

Zhang

2012

AMR

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This paper uses non-linear finite element method to structurally analyze top flanged joint system of a MW wind turbine, sets up a finite element model of top flanged joint system by applying finite element analysis software MSC.Marc/Mentat, makes an analysis on the stress distribution of key components of top flanged joint system under ultimate operating mode based on applying appropriate boundary condition and loads, and carries out security examination on top flange and joint bolt. Result shows that key components of the top flanged joint system can satisfy design requirements, and it has a guiding role for rational design and performance improvement of large scale wind turbine flange, which can be used in structural analysis of other flanged joint systems, and has certain practical value in the aspect of engineering.

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“…For this reason, three compression nuts of the same batch were selected randomly to probe the identity of the thread pre-tightening force in the same preload condition. In this paper the three nuts are marked as nut No.1, nut No.2 and nut No.3, and the thread parameters were calibrated by thread profilometer from Harbin Measuring & Cutting Tool Group Co. Ltd [1], the parameters are listed in Table 1.…”

Section: The Experimental Study Of the Factors Influencing Pre-tighte...mentioning

confidence: 99%

Research of Turbine Pump Shaft Effective Pre-Tightening Force Transmission Influencing Factors

Zhou

Jiang

Lang

et al. 2012

AMR

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Abnormal vibration was found in a rocket engine test, to guarantee the stability of the rotor when its working, in this paper, by studying the turbine assembly process and pump assembly process, research of the factors such as correlation among the assembly torque, the pre-tightening force, part parameters and assembly parameters etc was applied. By studying the assembly process of turbine pump shaft, analyzing the of the role of the turbine shaft Parts parameters in the assembly process, by selecting the shaft parts and assembly experiments, theoretical basis and data preparation are provided to improve the quality of the turbopump assembly.

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Study of Pre-Tightening Force on Piezoelectric Multi-Dimensional Force Sensor’s Measurement Performance

Cited by 3 publications

References 2 publications

Research on the reliable test range of four-point supported piezoelectric dynamometer

Research on the reliable test range of four-point supported piezoelectric dynamometer

Finite Element Analysis of Top Flanged Joint System of High Power Level Wind Turbine

Research of Turbine Pump Shaft Effective Pre-Tightening Force Transmission Influencing Factors

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