在章节标题后添加双倍行距

Question

我正在为研究生院的论文设计格式，他们要求我在章节标题后加一行双倍行距。我正在使用别人的模板，并尝试根据需要进行修改。

这是我当前的代码：

\documentclass[11pt,letterpaper,twoside]{report}

% Layout
\usepackage{geometry}
\usepackage{setspace}

\usepackage{indentfirst}

\usepackage{titlesec}
\titleformat*{\section}{\normalsize\bfseries}
\titleformat*{\subsection}{\normalsize\bfseries}

\usepackage{sectsty} % Used to control chapter and section headings, 

\usepackage[subfigure]{tocloft}

% Citation style
\usepackage{natbib}
\usepackage{apalike}

% include citations inline
\usepackage{bibentry}
\nobibliography*

% Figures
\usepackage{subfigure}
\usepackage{epsfig}
\usepackage{booktabs}
\usepackage{multicol}
\usepackage{listings}

% Math
\usepackage{amsthm}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{mathrsfs}
\usepackage{mathtools}
\usepackage{tikz-cd}

% Typography
\usepackage{times}
\usepackage{microtype}
\usepackage{textcomp}
\usepackage{enumitem}

% Macro support
\usepackage{xspace}

% PDF links
\usepackage[hidelinks]{hyperref} % backref=page


\input{common/layout}

% Use proper margins.
\geometry{letterpaper,left=1in,top=1in,right=1in,bottom=1in,nohead}



% double-space text
\doublespacing

% Center chapter titles, omit page numbers.
\titleformat{\chapter}[block] 
{\normalfont\bfseries\centering\singlespacing}{}{0pt}{}


\titleformat*{\section}{\normalfont\bfseries}

%header sizes
\titleformat*{\section}{\bfseries}
\titleformat*{\subsection}{\bfseries}
\titleformat*{\subsubsection}{\bfseries}

% Extend to 2in top margins
% Leave 22pts = 2x font size after heading
\titlespacing{\chapter}{0in}{0.62in}{22pt}

% Indent paragraphs four spaces throughout the thesis/dissertation.
\setlength{\parindent}{4ex}

% Tweak spacing of paragraph labels.
\titlespacing{\paragraph}{0in}{0.08in}{0.07in}

% We want numbered subsubsections
\setcounter{secnumdepth}{3}
\setcounter{tocdepth}{3}

% We need to double-space between footnotes.
\setlength{\footnotesep}{11pt}

% We don't want crazy vertical spacing.
\raggedbottom

% We don't want abandoned words.
\clubpenalty=10000 
\widowpenalty=10000

% Prevent awkward hyphenations.
\hyphenation{Raj-kumar}

\begin{document}
\chapter{This chapter title should be 2 inches below the top of the page and have a double spaced line before the body}

There should be one double-spaced line between this one and the chapter heading.
\end{document}