1. A New Force-Measuring Device
Design & Experiments
Zhongyuan Wo
Student Intern
August 26, 2016

2. Outlines Application of Device Experiment Plan Calculation Test Scheme
Loading & Measuring Devices
Calculation
Equations
Comparison of Calculation & real load

3. Application Scenario Measuring force in structural test
Both axial load & moment
Bottom of columns
loading
Places of devices

4. Outlines Application of Device Experiment Plan Calculation Test Scheme
Loading & Measuring Devices
Calculation
Equations
Comparison of Calculation & real load

5. Test Scheme M+N To examine precision Fundamental Program Design
The measuring device
Loading device
Device
M+N
Compare
Real Load
Calculation

6. Loading Device Axial Load Axial & Moment To Change N/M N
Moving to change arm
Different locations
Different M direction
Rotating device
Arm N
Arm
N & M

7. Measuring Devices Two devices Rotated loading device Calculation
Circular
Rectangular
Rotated loading device
Calculation
Strain Stress
Stress N&M
Linear
Integrate

8. Photos
Strain gage
Whole structure

9. Outlines Application of Device Experiment Plan Calculation Test Scheme
Loading & Measuring Devices
Calculation
Equations
Comparison of Calculation & real load

10. Equations Assumptions Strain Distribution Stress-Strain: linear
Plane cross-section*
Strain Distribution
* Since no shear force on this section, this assumption is reasonable

11. Equations Assumptions Strain Distribution Stress-Strain: linear
Plane cross-section
Strain Distribution

12. Equations

13. Part Results Compare: real & calculation Moment Comparison (Arm=14cm)
Force Comparison (Arm=14cm)
Real
Calculation
Real
Calculation
Moment (kN·m)
Force (kN)
Steps
Steps